Valores VW Jetta - Automotriz En Video
Transcript of Valores VW Jetta - Automotriz En Video
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Measuring Value Block Safety precautions
Observe following if test and measuring instruments are required during a test drive:
Test and measuring instruments must be secured to rear seat and operated by a 2nd person from this location.
If test and measuring instruments are operated from front passenger's seat and the vehicle is involved in an accident, there is a possibility that the person sitting in this seat may receive serious injuries when the airbag is triggered.
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Read Measuring Value Block (function 08)
VAG1551 scan tool with VAG1551/3B cable
Test conditions
Coolant temperature must be at least 80 C, display group 04, display zone 3.
All electrical consumers, e.g. lights and rear window heating must be switched off
If the vehicle is equipped with an air conditioner, this must be switched off.
On vehicles with automatic transmission selector lever in "P" or "N" position
No DTCs must be stored in DTC memory Page 01-21 , checking DTC memory
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Work sequence
- Connect VAG1551 scan tool (VAG1552). Start engine and select "Address word" 01 of engine control module. Engine must be running at idling speed. (Connecting scan tool and selecting engine control module Page 01-12 .)
Rapid data transfer HELP
Select function XX Indicated on display:
- Press keys 0 and 8 for function "Read Measuring Value Block" and confirm entry with Q key.
Read Measuring Value Block HELP
Input display group number XXX Indicated on display:
Note:
The display group number 1 is an example, to illustrate the sequence.
- Select required display group number.
- Press keys 0, 0 and 1 for "Display group number 1" and confirm entry with Q key.
Read Measuring Value Block 1
1 2 3 4
Indicated on display: (1 to 4 Display zones)
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Note:
To change to another display group proceed as follows:
Display group VAG1551 VAG1552
Higher Press key 3 Press key
Lower Press key 1 Press key
Skip Press key C Press key C
- If specifications in all display zones are obtained, press key.
Rapid data transfer HELP
Select function XX Indicated on display:
Note:
Measured value blocks which are not described in this chapter are currently only intended for the research and development and production. The values displayed are not relevant for service department troubleshooting.
- Press keys 0 and 6 for "End data transfer" function and confirm input with Q key.
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Measuring value blocks, evaluating display groups 0 to 9 (Basic functions)
Display group 1 (Basic functions)
Engine running at idling speed
Read Measuring Value Block 1
Indicated on display
xxxx RPM
xx.x C
x.x% xxxxxxxx
1 2 3 4 Display zones Specification Evaluation
Adjustment conditions for basic setting
1x111111 Page 01-170
Oxygen sensor regulator before catalyst
-10.0 to 10.0%
Page 01-198
Coolant temperature 80 to 110 C Page 01-177
Engine speed (idling speed):
Manual transmission
Automatic transmission
700 to 820 RPM
640 to 760 RPM
Page 01-171
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Significance of 8-digit number block for readiness code
Significance if display = 1
1 2 3 4 5 6 7 8 Significance
1 Coolant temperature above 80 C
1 Speed below 2000 RPM
1 Throttle valve closed
1 Oxygen sensor control OK.
1 Idling switch closed
1 Air conditioner compressor switched off
1 CAT-Temp. over 350 C
1 No DTCs recognized by On Board Diagnostic (OBD)
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Evaluating display group 1, display zone 1 - Engine speed (idling speed)
Appears on display
Possible cause Corrective action
Less than 640 RPM
or 700 RPM
Throttle valve control module sticking or faulty
- Check throttle valve control module Page 24-44
- Perform idling check Page 24-95
More than 760 RPM
or 820 RPM
Idling switch not closed/faulty - Check DTC Memory Page 01-21
Large amount of unmetered air (cannot be compensated for by the idling stabilization)
- Check intake air system for leaks Page 24-92
Throttle valve control module sticking/faulty
- Check throttle valve control module Page 24-44
- Perform idling check Page 24-95
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Display group 2 (Basic functions) Mass Air Flow (MAF) sensor
Engine running at idling speed
Read Measuring Value Block 2
Indicated on display
xxxx RPM
xxx% x.x ms
x.x g/s
1 2 3 4 Display zones Specification Evaluation
Air mass drawn in 2.0 to 4.5 g/s Page 01-173
Injection period
Engine code AWW
Engine code AWP
2.0 to 4.0 ms
1.5 to 4.0 ms
Page 01-173
Engine load 15 to 25% Page 01-183
Engine speed (idling speed):
Manual transmission
Automatic transmission
700 to 820 RPM
640 to 760 RPM
Page 01-171
Note:
For display zone 4:
The air mass measured by the Mass Air Flow (MAF) sensor is indicated.
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Evaluating display group 2, display zone 3 - Injection period
Appears on display
Possible cause Corrective action
Less than 2.0 ms Large amount of fuel from the
Evaporative Emission (EVAP) system
- Check EVAP canister purge regulator valve Page 01-94 , Output Diagnostic Test Mode
Incorrect injectors with greater throughput installed
- Check injection rate Page 24-75
More than 4.0 ms Increased engine load due to electric
consumers, air conditioner, gear selected or power steering on full lock
- Eliminate increased load (air conditioner, power steering etc.)
Evaluating display group 2, display zone 4 - Air mass drawn in
Appears on display
Possible cause Corrective action
Less than 2.0 g/s Large amount of unmetered air between
intake manifold and Mass Air Flow (MAF) sensor
- Repair unmetered air
Greater than 4.5 g/s Gear selected (automatic transmission) - Place selector lever in P
or N
Engine loaded due to ancillaries - Eliminate load (air conditioner, power steering etc.)
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Display group 3 (Basic functions) Mass Air Flow (MAF) sensor
Engine running at idling speed
Read Measuring Value Block 3
Indicated on display
xxxx RPM
x.xx ms
x.x% xx.x BTDC
1 2 3 4 Display zones
Specification Evaluation
Ignition angle
Engine code AWW
Engine code AWP
6 to 12 BTDC
5 to 12 BTDC
---
Throttle valve angle (potentiometer 1 -G187-)
0.2 to 4.0%
Page 01-183
Air mass drawn in 2.0 to 4.5 g/s Page 01-173
Engine speed (idling speed):
Manual transmission
Automatic transmission
700 to 820 RPM
640 to 760 RPM
Page 01-171
Note:
For display zone 3:
Display values must be approx. 100% when accelerator pedal is fully depressed.
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Display group 4 (Basic functions)
Engine running at idling speed
Read Measuring Value Block 4
Indicated on display
xxxx RPM
xx.xxx V
xxx.x C
xxx.x C
1 2 3 4 Display zones Specification Evaluation
Intake air temperature
-48 to 110 C Page 01-178
Coolant temperature 60 to 110 C Page 01-177
Voltage supply for engine control module
12.0 to 15.0 V Page 01-176
Engine speed (idling speed):
Manual transmission
Automatic transmission
700 to 820 RPM
640 to 760 RPM
Page 01-171
Note:
For display zone 3:
The engine control module will use the intake air temperature as a replacement value for an engine start (start temperature - replacement value) as soon as there is a malfunction stored in the DTC memory, which affects the Engine Coolant Temperature (ECT) Sensor -G62-. The temperature then rises according to a model stored in the control module. When the engine has reached normal working temperature a fixed replacement value will be displayed after a certain period. This fixed value is also dependent upon the intake air temperature.
Note:
For display zone 4:
The total temperature range is given as the specification. The displayed value must be above ambient temperature.
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Evaluating display group 4, display zone 2 - Control module voltage supply
Appears on display
Possible cause Corrective action
Less than 12.0 V Alternator faulty, battery charge state
low Repair Manual, Electrical
Equipment, Repair Group 27
- Check alternator and battery voltage, charge battery:
Battery heavily charged shortly after starting due to high charging current and current consumers
- Increase revs slightly for a few minutes and switch off current consumers
Transfer resistance in the current supply or the engine control module Ground (GND) connection
- Check engine control module voltage supply Page 24-139
Current draw when ignition is off - Eliminate current draw
More than 15.0 V Voltage regulator on alternator faulty
Repair Manual, Electrical Equipment, Repair Group 27
- Check voltage regulator, replace if necessary:
Excess voltage due to jump starting or quick charging unit
- Check DTC Memory Page 01-21
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Evaluating display group 4, display zone 3 - Coolant temperature
Appears on
display
Possible cause Corrective action
Less than 60 C Engine too cold - If necessary test drive vehicle
Coolant temperature sensor or wiring to engine control module
- Check coolant temperature sensor Page 24-52
Greater than 110
C
Radiator soiled - Clean radiator
Coolant fan not functioning Electrical Wiring Diagrams, Troubleshooting &
Component Locations
- Check function
Thermostat faulty Repair Manual, 1.8 Liter 4-Cyl. 5V Turbo
Engine Mechanical, Engine Code(s): AWD, AWW, AWP, Repair Group 19; Removing and installing parts of cooling system: Parts of cooling system - engine side
- Check thermostat
Coolant temperature sensor or wiring to engine control module
- Check coolant temperature sensor Page 24-52
Constant -48.0 C Wiring open circuit - Check coolant temperature sensor Page 24-
52
Constant 143 C Short between wires
3 and 4
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Evaluating display group 4, display zone 4 - Intake air temperature
Appears on display
Possible cause Corrective action
Constant -48.0C Wiring open circuit - Check intake air temperature sensor
Page 24-62
Constant 143 C Short between wires 1 and 2
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Display group 5 (Basic functions)
Engine running at idling speed
Read Measuring Value Block 5
Indicated on display
xxxx RPM
xxx% xxx km/h
Text
1 2 3 4 Display zones Specification Evaluation
Operating mode (idling, part throttle, enrichment, overrun)
Idling
---
Road speed 0 km/h ---
Engine load 15 to 25% Page 01-183
Engine speed (idling speed):
Manual transmission
Automatic transmission
700 to 820 RPM
640 to 760 RPM
Page 01-171
Note on display zone 2:
Engine load at idle is given as the specified value.
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Display group 6 (Basic functions)
Engine running at idling speed
Read Measuring Value Block 6
Indicated on display
xxxx RPM
xxx% xxx.x C
xx.x%
1 2 3 4 Display zones Specification Evaluation
Altitude correction factor
-50.0 to 20.0% ---
Intake air temperature -48 to 110 C Page 01-178
Engine load 15 to 25% Page 01-183
Engine speed (idling speed):
Manual transmission
Automatic transmission
700 to 820 RPM
640 to 760 RPM
Page 01-171
Note:
For display zone 2:
Engine load at idle is given as the specified value.
For display zone 3:
The total temperature range is given as the specification. The displayed value must be above ambient temperature.
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Only engine code AWP with automatic transmission:
Display group 8 -Basic function- Vacuum pump for brakes
Ignition on, engine not running
Read measured value block 8
Indicated on display
Text Text xxx mbar
1 2 3 4 Display zones Specification Evaluation
Absolute pressure / brake booster
--- ---
Electrical vacuum pump ON/OFF --- ---
Brake pedal
not depressed
depressed
---
---
---
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Measuring value blocks, evaluating display groups 10 to 29 (Ignition)
Display group 10 (Ignition)
Engine running at idling speed
Read Measuring Value Block 10
Indicated on display
xxxx RPM
xxx% x.x% xx.x BTDC
1 2 3 4 Display zones
Specification Evaluation
Ignition angle
Engine code AWW
Engine code AWP
5 to 15 BTDC
4 to 15 BTDC
---
Throttle valve angle (potentiometer 1 -G187-)
0.3 to 4.0%
Page 01-183
Engine load 10 to 25% Page 01-183
Engine speed (idling speed):
Manual transmission
Automatic transmission
700 to 820 RPM
640 to 760 RPM
Page 01-171
Note:
For display zone 2:
Engine load at idle is given as the specified value.
For display zone 3:
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Display values must be approx. 100% when accelerator pedal is fully depressed.
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Evaluating display group 10, display zone 2 - Engine load
Appears on display
Possible cause Corrective action
Less than 10% Lesser values can only occur when driving in overrun
More than 25% Rough idling (not running on all
cylinders) - Injectors or spark plugs faulty
Electric consumers switched on - Switch off electric consumers
Steering wheel at full lock - Set steering wheel to center position
Gear selected (automatic transmission)
- Place selector lever in P or N
Mass Air Flow (MAF) sensor faulty
- Check Mass Air Flow (MAF) sensor Page 24-38
Evaluating display group 10, display zone 3 - Throttle valve angle
Appears on display
Possible cause Corrective action
More than 4% Engine control module not
matched to throttle valve control module
- Match engine control module to throttle valve control module Page 24-152
Throttle positon sensor in throttle valve control module faulty
- Check throttle valve control module Page 24-44
Throttle valve sticking - Eliminate cause
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Display group 14 (Ignition) Misfire recognition
Engine running at idling speed
Read Measuring Value Block 14
Indicated on display
xxxx RPM
xxx% xxx Text
1 2 3 4 Display zones Specification Evaluation
Misfire recognition (active, blocked)
active Page 01-187
Misfire total 0 ---
Engine load 10 to 25% Page 01-183
Engine speed (idling speed):
Manual transmission
Automatic transmission
700 to 820 RPM
640 to 760 RPM
Page 01-171
Note:
For display zone 3:
The total of the detected misfires is displayed here. It provides no information about the time period in which the misfires have occurred. Therefore, check misfire recognition while driving Page 28-25 .
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Display group 15 -Ignition- Misfire recognition Cyl. 1 to Cyl. 3
While driving
Read measured value block 15
Indicated on display
xxx xxx xxx Text
1 2 3 4 Display zones Specification Evaluation
Misfire recognition
(activated, blocked)
activated ---
Misfire Cyl. 3 0 Page 01-187
Misfire Cyl. 2 0 Page 01-187
Misfire Cyl. 1 0 Page 01-187
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Display group 16 -Ignition- misfire recognition Cyl. 4
While driving
Read measured value block 16
Indicated on display
xxx --- --- Text
1 2 3 4 Display zones Specification Evaluation
Misfire recognition
(activated, blocked)
activated ---
Misfire Cyl. 4 0 Page 01-187
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Evaluating display group 14, display zone 3 - Total number of misfires
Appears on display Possible cause Corrective action
Greater than specification Spark plug faulty
Spark plug connector faulty
Ignition coil faulty
Ignition coil output stage faulty
- Check ignition coils with output stage Page 28-11
- Check spark plugs Page 28-7
Injector faulty - Check injectors Page 24-75
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Display group 22 (Ignition) Knock control
While driving
Read Measuring Value Block 22
Indicated on display
xxxx RPM
x.xx% xx.x CA
xx.x CA
1 2 3 4 Display zones Specification Evaluation
No. 2 Cyl. retardation of ignition timing by knock control
0 to 12.75CA
Page 01-190
No. 1 Cyl. retardation of ignition timing by knock control
0 to 12.75CA
Page 01-190
Engine load 10 to 150% ---
Engine speed (idling speed)
Manual transmission
Automatic transmission
700 to 6800 RPM
640 to 6800 RPM
Page 01-171
Note:
For display zones 3 and 4:
The displayed value should be 0.0 CA at idling.
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Display group 23 (Ignition) Knock control
While driving
Read Measuring Value Block 23
Indicated on display
xxxx RPM
x.xx% xx.x CA
xx.x CA
1 2 3 4 Display zones Specification Evaluation
No. 4 Cyl. retardation of ignition timing by knock control
0 to 12.75CA
Page 01-190
No. 3 Cyl. retardation of ignition timing by knock control
0 to 12.75CA
Page 01-190
Engine load 10 to 150% ---
Engine speed (idling speed)
Manual transmission
Automatic transmission
700 to 6800 RPM
640 to 6800 RPM
Page 01-171
Note:
For display zones 3 and 4:
The displayed value should be 0.0 Crankshaft Angle (CA) at idling.
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Evaluating display groups 22/23, display zones 3 and 4 - Retardation of ignition
Appears on display
Possible cause Corrective action
All cylinders 12.75 CA
Knock sensor faulty
- Check knock sensors Page 28-16
Connector corroded
Knock sensor incorrectly tightened
- Loosen knock sensor and tighten to 20 Nm
Ancillary components on engine loose
- Tighten ancillary components
Poor fuel quality - Change type of fuel
One cylinder deviates greatly from the others
Connector corroded
- Check knock sensors Page 28-16
Engine damaged Repair Manual, 1.8 Liter 4-Cyl. 5V Turbo
Engine Mechanical, Engine Code(s): AWD, AWW, AWP, Repair Group 15; Removing and installing cylinder head; Checking compression pressure
- Check compression pressures:
Ancillary components on engine loose
- Tighten ancillary components
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Display group 28 (Ignition) knock control
While driving
Read Measuring Value Block 28
Indicated on display
xxxx RPM
xx.x% xxx.x C
Text
1 2 3 4 Display zones Specification Evaluation
Result of knock sensor test (Test on / Test off / Sys. OK. / Sys. n.OK.
Sys. OK.
---
Coolant temperature 40 to 110 C Page 01-177
Engine load 15 to 175% ---
Engine speed 2200 to 6800 RPM
---
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Measuring value blocks, evaluating display groups 30 to 49, 99, 107 (oxygen sensor control)
Display group 30 (oxygen sensor control)
Engine running at idling speed
Read Measuring Value Block 30
Indicated on display
xxx xxx
1 2 3 4 Display zones Specification Evaluation
Oxygen sensor control status after catalyst
110 Page 01-193
Oxygen sensor control status before catalyst 111 Page 01-193
Note:
For display zones 2:
The 3rd display position is not set to 1 until in part throttle range.
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Significance of 3 digit number block in display zones 1 and 2
Significance if display = 1
1 2 3
1 Oxygen sensor control active
1 Oxygen sensor operationally ready
1 Oxygen sensor heating on
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Display group 32 (oxygen sensor control) Oxygen sensor learned values
Engine running at idling speed
Read Measuring Value Block 32
Indicated on display
xx.x% xx.x%
1 2 3 4 Display zones Specification Evaluation
Oxygen sensor learned value at part load (multiplicative)
-10 to 10% Page 01-195
Oxygen sensor learned value at idling speed (additive)
-10 to 10% Page 01-195
Note:
For display zones 1 and 2:
Low values indicate that the engine is running too rich and therefore the oxygen sensor control is leaning the mixture.
High values indicate that the engine is running too lean and therefore the oxygen sensor control enriches the mixture.
If there is no voltage supply to the control module all the values learned will be cancelled.
add = additive - The effects of the malfunction (e.g. unmetered air) will reduce as the engine speed increases. The injection period will be modified by a fixed amount for additive learned values. This amount is not dependent upon the basic injection period.
mul = multiplicative - The effects of the malfunction (e.g. malfunctioning injector) will increase as the engine speed increases. A multiplicative learned value is a proportional change to the injection period. This change is dependent on the basic injection period.
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Note:
Initiating learning process: Control module in mode 04, Basic settings
Learning conditions for idling: Idling, coolant temperature min. 75 C, intake air temperature max. 90 C
Learning conditions for part load: coolant temperature min. 75 C, intake air temperature max. 90 C
EVAP canister purge regulator valve must be closed and the A/C compressor must be off.
Evaluating display zone 32, display zones 1 and 2 - Oxygen sensor learned values
Appears on display
Possible cause Corrective action
Low oxygen sensor learned
values Low learned values at idling but with normal learned values at part throttle: possible oil dilution (high level of fuel in oil)
- Disappears after motorway drive or oil change
Injector leaking - Check injector Page 24-75
Fuel pressure too high - Check fuel pressure regulator and holding pressure Page 24-86
EVAP canister purge regulator valve permanently open
- Check EVAP canister purge regulator valve Page 01-94 , Output Diagnostic Test Mode
Mass Air Flow (MAF) sensor faulty - Check Mass Air Flow (MAF) sensor Page 24-38
Oxygen sensor heating faulty or oxygen sensor soiled
- Check oxygen sensor heating Page 24-26
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Appears on display
Possible cause Corrective action
High oxygen sensor learned
values
High learned values at idling speed, not so high learned values at part throttle: possible unmetered air in area of intake manifold
- Check intake air system for leaks Page 24-92
Unmetered air between Mass Air Flow (MAF) sensor and throttle valve
- Repair cause
Injector blocked - Check quantity injected rate Page 24-75
Display zones 1 and 2 high: Mass Air Flow (MAF) sensor faulty
- Check Mass Air Flow (MAF) sensor Page 24-38
Fuel pressure too low - Check fuel pressure regulator and holding pressure Page 24-86
Unmetered air at exhaust manifold gasket
Oxygen sensor heating faulty or oxygen sensor soiled
- Check oxygen sensor heating Page 24-26
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Display group 33 (oxygen sensor control) Oxygen sensor control values
Engine running at idling speed
Read Measuring Value Block 33
Indicated on display
xx.x% x.xxx V
1 2 3 4 Display zones Specification Evaluation
Oxygen sensor voltage, oxygen sensor before catalyst
0.000 to 5.000 V
Page 01-199
Oxygen sensor regulator before catalyst -10.0 to 10.0% Page 01-198
Note:
For display zone 1:
The display must fluctuate around 0. If constant 0 is displayed, the oxygen sensor control has switched from regulation to control, because there is a malfunction in the oxygen sensor control. Check DTC Memory Page 01-21 .
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01-198
Evaluating display group 33, display zone 1 - oxygen sensor regulator before catalyst
Appears on display
Possible cause Corrective action
Outside tolerance
range Minus range: Mixture too rich, oxygen sensor control weakens mixture
Positive range: Mixture too lean, oxygen sensor control enriches mixture
- Wait 30 seconds until display has stabilized
Unmetered air - Check intake system for leaks Page 24-92
Injector faulty - Check injection rate Page 24-75
Oxygen sensor learned value on limit
- Check oxygen sensor learned value in display group 32
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01-199
Readiness code
Display group 34 (oxygen sensor control) oxygen sensor diagnostic before catalyst (checking age via cycle duration monitoring)
Vehicle stationary, engine running at increased idling speed
Control module in mode 04-Basic settings
Read Measuring Value Block 34
Indicated on display
xxxx RPM
xxx.x C
xx.xx s
Text
1 2 3 4 Display zones Specification Evaluation
Result of oxygen sensor before catalyst age check (test OFF/test ON/B1-S1 OK / B1-S1 n.OK)
B1-S1 OK
---
Cycle duration oxygen sensor before catalyst
0.50 to 2.50
---
Catalyst temperature 350 to 500 C ---
Engine speed 1800 to 2200 rpm
---
Note:
For display zone 2:
Value calculated from engine speed and engine load.
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01-200
Readiness code
Display group 36 (oxygen sensor control) Operational readiness of oxygen sensor after catalyst
Engine running at idling speed
Control module in mode 04-Basic settings
Read Measuring Value Block 36
Indicated on display
x.xxx V Text
1 2 3 4 Display zones Specification Evaluation
Check oxygen sensor after catalyst (Test OFF/Test ON/B1-S2 OK / B1-S2 n.OK)
B1-S2 OK
---
Oxygen sensor voltage, oxygen sensor after catalyst
0.100 to 0.900 V
Page 01-201
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01-201
Evaluating display group 36, display zone 1 - Oxygen sensor voltage,oxygen sensor after catalyst
Appears on display
Possible cause Corrective action
Constant 1.100 V Short to positive via: oxygen sensor, sensor wiring, Ground (GND) wiring, engine control module
- Check oxygen sensor wiring Page 24-117
Constant between 0.400 to 0.500 V Open circuit via: oxygen sensor, sensor
wiring, Ground (GND) wiring, engine control module
Constant 0.000 V Short to Ground (GND) via: oxygen sensor, sensor wiring, Ground (GND) wiring, engine control module
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01-202
Readiness code
Display group 37 (oxygen sensor control) oxygen sensor - dwell period test
Engine running at idling speed
Control module in mode 04-Basic settings
Read Measuring Value Block 37
Indicated on display
xxx% x.xxx V
xxxx ms
Text
1 2 3 4 Display zones Specification Evaluation
Result (Test On / OFF /
Syst. OK / n.OK)
Syst. OK
Dwell period oxygen sensor control before catalyst
-0.02 to 0.02
Oxygen sensor voltage, oxygen sensor after catalyst
0.100 to 0.900 V
Page 01-201
Engine load 10 to 150% ---
Note:
For display zone 1:
The entire display range is given.
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Display group 41 (oxygen sensor control) oxygen sensor heating
Engine running at idling speed
Read Measuring Value Block 41
Indicated on display
x.x kOhm
Text x.x kOhm
Text
1 2 3 4 Display zones Specification Evaluation
Oxygen sensor heating after catalyst
Htg.aC.ON
Htg.aC.OFF
---
Oxygen sensor heating after catalyst, resistance
0.0 to 2.0 kOhm
---
Oxygen sensor heating before catalyst Htg.bC.ON
Htg.bC.OFF
---
Note:
For display zones 2 and 4:
The oxygen sensor heating may be switched ON or OFF depending on the operating conditions of the engine, therefore the display in display zone 2 or 4 may show "Htg.b(a)C.ON" or alternating from "Htg.b(a)C.ON" to Htg.b(a)C.OFF".
Note:
For display zone 3:
In the case of oxygen sensor heating open circuit, there will be no display in Display group 3.
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01-204
Readiness code
Display group 43 (oxygen sensor control) oxygen sensor diagnostic after catalyst (ageing check)
Vehicle stationary, engine running at increased idling speed
Control module in mode 04-Basic settings
Read Measuring Value Block 43
Indicated on display
xxxx RPM
xxx.x C
xx.xx s
Text
1 2 3 4 Display zones Specification Evaluation
Result of aging check of oxygen sensor after catalyst (test OFF/test ON/B1-S2 OK / B1-S2 n.OK)
B1-S1 OK
---
Oxygen sensor voltage, oxygen sensor after catalyst
0.100 to 0.900 V
---
Catalyst temperature min. 300 C ---
Engine speed 1800 to 2200 rpm
---
Note:
For display zone 2:
Value calculated from engine speed and engine load.
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Readiness code
Display group 46 (oxygen sensor control) Catalyst diagnostic (conversion test)
Vehicle stationary, engine running at increased idling speed
Control module in mode 04-Basic settings
Read Measuring Value Block 46
Indicated on display
xxxx RPM
xxxx C
x.xx Text
1 2 3 4 Display zones Specification Evaluation
Result of catalyst conversion test (Test OFF/test ON/Cat B1 OK/Cat B1 n.OK)
Cat B1 OK
---
Amplitude ratio 0.00 to 0.32 ---
Catalyst temperature min. 440 C ---
Engine speed 1800 to 2200 rpm
---
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Display group 99 -Oxygen sensor control - oxygen sensor operating condition
Engine running at idling speed
Control module in mode 04-Basic setting, oxygen sensor control off
Control module in mode 08-Read measured value block, oxygen sensor control on
Read measured value block 99
Indicated on display
xxxx rpm
xx.x C
x.x% Text
1 2 3 4 Display zones Specification Evaluation
Oxygen sensor control operating mode
-Cont. OFF or
-Cont. ON
---
Oxygen sensor control -10.0...10.0% Page 01-198
Coolant temperature 80...110 C Page 01-177
Engine speed
Manual transmission
Automatic transmission
700...6800 rpm
640...6800 rpm
Page 01-171
Notes on display zone 4:
For a defined fault finding the oxygen sensor control is switched off when selecting display group 99 under "Basic setting" or switched on under "Read measured value block". When the function 04 "Basic setting" is exited the oxygen sensor control is automatically active again.
It is possible to switch between the function 04 "Basic setting" and the function 08 "Read measured value block" by pressing the keys 4 and 8 on V.A.G 1551/1552.
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Readiness code
Display group 107 -Oxygen sensor control- Diagnostic of fuel system
Engine running at idling speed
Control module in mode 04-Basic settings
Read Measuring Value Block 107
Indicated on display
xxxx RPM
x.x% Text
1 2 3 4 Display zones Specification Evaluation
Result of diagnostic (Test OFF/Test ON / Syst. OK / Syst. n.OK)
Syst. OK
---
Oxygen sensor control (mean value) -23.0 to 23.0%
---
Engine speed (idling speed):
Manual transmission
Automatic transmission
700 to 820 RPM
640 to 760 RPM
Page 01-171
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Measuring value blocks, evaluating display groups 50 to 69 (Speed regulation)
Display group 50 (Speed regulation) Operating condition
Engine running at idling speed
Read Measuring Value Block 50
Indicated on display
xxxx RPM
xxxx RPM
Text Text
1 2 3 4 Display zones Specification Evaluation
Air conditioner compressor operating mode ON/OFF
Compr. ON or
Compr. OFF
---
Air conditioner operating mode A/C-High or
A/C-Low
---
Engine speed (idling speed specification):
Manual transmission
Automatic transmission
760 RPM
700 RPM
---
Engine speed (idling speed):
Manual transmission
Automatic transmission
700 to 820 RPM
640 to 760 RPM
Page 01-171
Note:
For display zone 2:
The specified engine speed from engine control module (calculated in control module) is displayed. In exceptional cases the idling speed can be adapted Page 24-100 . The idle speed figures with gear selected are then automatically modified.
Note:
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For display zone 3:
A/C-High = Air conditioner demands too high a heating or cooling output A/C-Low = Air conditioner not switched on.
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Note:
For display zone 4:
"Compr. OFF" is always displayed on vehicles without air conditioner.
Checking signal from and to air conditioner compressor Page 24-166
Display group 54 (Speed regulation)
While driving
Read Measuring Value Block 54
Indicated on display
xxxx RPM
Text xxx% xxx%
1 2 3 4 Display zones Specification Evaluation
Angle sensor -1- for throttle drive (power accelerator actuation) -G187-
0 to 100%
---
Throttle position (TP) sensor -G79-
0 to 100% ---
Operating mode (idling, part load, enrichment, overrun)
--- ---
Engine speed (idling speed)
Manual transmission
Automatic transmission
700 to 2520 RPM
640 to 2520 RPM
Page 01-171
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01-210
Display group 55 (Speed regulation) Idling stabilization
Engine running at idling speed
Read Measuring Value Block 55
Indicated on display
xxxx RPM
xx.xx% xx.xx% xxxxx
1 2 3 4 Display zones Specification Evaluation
Operating mode xxxxx Page 01-211
Idling regulator learning value
Air conditioner on (A/C High)
Air conditioner off (A/C Low)
-6.0 to 6.0%
-3.0 to 3.0%
---
Idling regulator -4.30 to 12.20%
---
Engine speed (idling speed):
Manual transmission
Automatic transmission
700 to 820 RPM
640 to 760 RPM
Page 01-171
Note:
For display zone 3:
Displayed is the amount that the idling speed stabilization has moved away from the prescribed average. For a new engine the values lie in the positive range, because of the higher friction and in the negative range with an engine that has run-in.
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Significance of 5 digit number block
Significance if display = 1
1 2 3 4 5 Significance
1 Air conditioner compressor switched on
1 Driving range (gear) selected
1 Air conditioning system switched on
1 Rear window defroster on
1 Power assisted steering pressure switch on
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Display group 56 (Speed regulation) Idling speed stabilization
Engine running at idling speed
Read Measuring Value Block 56
Indicated on display
xxxx RPM
xxxx RPM
xx.x% xxxxx
1 2 3 4 Display zones Specification Evaluation
Operating mode xxxxx Page 01-211
Idling regulator -4.30 to 12.20%
---
Engine speed (idling speed specification):
Manual transmission
Automatic transmission
760 RPM
700 RPM
---
Engine speed (idling speed):
Manual transmission
Automatic transmission
700 to 820 RPM
640 to 760 RPM
Page 01-171
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Readiness code
Display group 60 (Speed regulation) Adaptation EPC system 1)
Ignition on, engine not running
Control unit in mode 04 basic setting
Read Measuring Value Block 60
Indicated on display
xx% xx% x Text
1 2 3 4 Display zones Specification Evaluation
Adaptation condition (ADP runs, ADP OK or ADP ERROR)
ADP OK
---
Learning step counter 0 to 8 ---
Angle sensor -2- for throttle drive (power accelerator actuation) -G188-
97 to 3% ---
Angle sensor -1- for throttle drive (power accelerator actuation) -G187-
3 to 93% ---
1) Adapting engine control module to throttle valve control module Page 24-152 .
Note:
For display zone 60:
Matching the throttle valve control module is performed with ignition switched on.
Engine control module is adapted to throttle valve control module when selecting display group 60 under function 04 "Basic setting". This adaptation must always be carried out when another throttle valve control module (or another complete engine) or another engine control module is installed.
The counter counts up to 8 in display zone 3 during the adaptation.
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Display group 61 (Speed regulation) Electronic Power Control (EPC)
While driving
Read Measuring Value Block 61
Indicated on display
xxxx RPM
xx.xxx V
xxx% xxxxx
1 2 3 4 Display zones Specification Evaluation
Operating condition xxxx Page 01-211
Throttle drive (power accelerator actuation) -G186-
0 to 100% ---
Supply voltage for engine control module
12.0 to 15.0 V Page 01-176
Engine speed (idling speed)
Manual transmission
Automatic transmission
700 to 6800 RPM
640 to 6800 RPM
Page 01-171
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Display group 62 (Speed regulation) Electronic Power Control (EPC)
Ignition on, engine not running
Read Measuring Value Block 62
Indicated on display
xx% xx% xx% xx%
1 2 3 4 Display zones Specification Evaluation
Sender -2- for accelerator pedal position -G185-
0 to 100%
---
Throttle Position (TP) Sensor -G79-
12 to 97% ---
Angle sensor -2- for throttle drive (power accelerator actuation) -G188-
97 to 3% ---
Angle sensor -1- for throttle drive (power accelerator actuation) -G187-
3 to 93% ---
Note on display zone 4:
The entire display range is given.
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Vehicles with automatic transmissions
Display group 63 (Speed regulation) Kick down adaptation
Ignition on, engine not running
Control unit in mode 04 basic setting
Accelerator pedal fully depressed
Read Measuring Value Block 63
Indicated on display
xx% xx% Text Text
1 2 3 4 Display zones Specification Evaluation
Operating mode (ERROR, actuate, ADP. runs, ADP. OK
ADP. OK
Page 01-211
Kick-down switch Kick-down ---
Sender -2- for accelerator pedal position -G185-
0 to 100% ---
Throttle position (TP) sensor -G79- -25 to 25% ---
Note:
The entire display range is given.
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Vehicles with engine code AWP and cruise control system (CCS)
Display group 66 -Cruise control system
Engine running at idling speed
Read Measuring Value Block 66
Indicated on display
km/h xxxx km/h xxxx
1 2 3 4 Display zones Specification Evaluation
Switch position of CCS controls switch
00000011 Page 01-220
Specified road speed (last value stored by CCS)
--- ---
Brakes, clutch and CCS switches position
00001000 Page 01-220
Road speed (actual) 0 km/h ---
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Significance of the numbers in the 8-digit display, display field 2, brake and cruise control switch
Note:
Only the last four digits of the 8-digit display are described in the following table.
1 0 1 1 Significance
Brake depressed (brake light switch)
Brake depressed (brake pedal switch)
Constant 0 for vehicles with automatic transmission (clutch switch)
Cruise control system operational
Checking brake light and brake pedal switch Page 24-182 .
Set cruise control system to operational with log-in code 11463; deactivate with log-in code 16167.
Electrical system; Repair group 27
Significance of the numbers in the 8-digit display, display field 4, cruise control switch
Note:
Only the last four digits of the 8-digit display are described in the following table.
1 1 0 0 Significance
CCS sliding switch at off (locked only; not locked = 1)
CCS sliding switch at off (locked)
SET button depressed
CCS sliding switch at RES
Checking control switches for cruise control system:
Electrical system; Repair group 27
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Vehicles with engine code AWW and cruise control system (CCS)
Display group 66 -Cruise control system
Engine running at idling speed
Read measured value block 66
Indicated on display
km/h xxxx km/h xxxx
1 2 3 4 Display zones Specification Evaluation
Switch position of CCS controls switch
0000 Page 01-220
Specified road speed (last value stored by CCS)
--- ---
Brakes, clutch and CCS switches position
1000 Page 01-220
Road speed (actual) 0 km/h ---
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Significance of the figures in the 4 digit display, display zone 2, brakes, clutch and CCS switches position
1 1 1 1 Significance
Brake depressed (brake light switch)
Brake depressed (brake pedal switch)
Clutch depressed or on automatic transmission brake depressed
Cruise control system operational
Note:
For 4 digit display:
Checking clutch pedal switch -Engine code AWW: Page 24-176 ; Engine code AWP: Page 24-170 .
Checking brake light and brake pedal switch Page 24-182
Set cruise control system to operational with log-in code 11463; deactivate with log-in code 16167.
Significance of the figures in the 4 digit display, display zone 4, CCS control switches
1 1 0 0 Significance
CCS sliding switch at off (switch locked only)
CCS sliding switch at off (switch not locked or locked)
SET button depressed
CCS sliding switch at RES
Note:
Checking control switches for cruise control system:
Repair Manual, Electrical Equipment, Repair Group 27
Function of cruise control system:
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Vehicle Owner's Manual
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Measuring value blocks, evaluating display groups 70 to 79 (emission reduction)
Readiness code
Display group 70 (emission reduction) Evaporative Emission (EVAP) system diagnostic (fuel tank venting system)
Engine running at idling speed
Coolant temperature at least 60 C
Control module in mode 04-Basic settings
Read Measuring Value Block 70
Indicated on display
xxx% xx.x% Text
1 2 3 4 Display zones Specification Evaluation
Result of diagnostic (Test ON / OFF or TBV OK / n.OK)
TBV OK
---
EVAP purge flow rate 0 to 100% ---
Oxygen sensor control deviation in TBV diagnostic
-7.0 to 7.0% ---
EVAP canister purge regulator valve duty cycle 0 to 100% ---
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Note:
TBV means fuel tank venting valve (EVAP canister purge regulator valve). The diagnostic can only be initiated once per engine start.
For display zone 1:
The entire display range is given.
For display zone 3:
The value is only indicated for diagnostic via air path.
The entire display range is indicated.
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Readiness code
Display group 71 -Exhaust reduction- Leak diagnostic system
Engine running at idling speed
Coolant temperature at least 80 C
Control module in mode 04-Basic settings
Read Measuring Value Block 71
Indicated on display
Text Text Text Text
1 2 3 4 Display zones Specification Evaluation
Result of diagnostic (Test ON/ OFF, Syst. OK / n.OK)
Syst. OK
---
Diagnostic status (Syst.Test/End.Test)
End of Test ---
DTC message (small leak/large leak) --- ---
Reed-contact condition (Reed closed/Reed open) Reed open ---
Note:
Coolant temperature should be below 80 C during the test, check Page 01-169 .
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Readiness code
Display group 77 (emission reduction) Secondary air system diagnostic
Vehicle stationary, engine running at increased idling speed
Coolant temperature at least 75 C
Control module in mode 04-Basic settings
Read Measuring Value Block 77
Indicated on display
xxxx RPM
xx.x g/s
x.x g/s
Text
1 2 3 4 Display zones Specification Evaluation
Result of diagnostic (Test ON/ OFF, Syst. OK / n.OK)
Syst. OK
---
Secondary air system air mass -100 to 100% ---
Air mass drawn in 5.0 to 12.0 g/s
Page 01-173
Engine speed (idling speed)
Manual transmission
Automatic transmission
700 to 820 rpm
640 to 760 rpm
Page 01-171
Note:
For display zone 3:
The entire display range is given.
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Measured value blocks, evaluating display groups 86 to 89, 100 (Readiness code)
Display group 89 -Trip odometer- Exhaust Malfunction Indicator Lamp (MIL) on
Engine running at idling speed
Read Measuring Value Block 100
Indicated on display
xxxx km Text
1 2 3 4 Display zones Specification Evaluation
Requirement "Tank empty" (OK / too small)
--- ---
Engine code AWW:
Distance traveled with exhaust Malfunction Indicator Lamp (MIL) on
Engine code AWP:
No display
--- ---
Note:
Significance of exhaust Malfunction Indicator Lamp (MIL) Page 01-8
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Display group 100 (Readiness code)
Engine running at idling speed
Read Measuring Value Block 100
Indicated on display
xxxxxxxx xxx.x C
xxxx s
xxxxxxxx
1 2 3 4 Display zones
Specification Evaluation
Diagnostic status
--- ---
Period since last engine start
--- ---
Coolant temperature 80 to 110 C Page 01-177
Readiness code 00000000 Page 01-227
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Significance of 8 digit number block for readiness code
The readiness code is generated only when all display zones show 0
1 2 3 4 5 6 7 8 Diagnostic function
0 Catalyst
0 Catalyst heating (currently no diagnostic/always "0")
0 Evaporative Emission (EVAP) system (tank venting system)
0 Secondary air system
0 Air conditioner (currently no diagnostic/always "0")
0 Oxygen sensors
0 Oxygen sensor heating
0 Exhaust gas recirculation system (not fitted/always "0")
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Measuring value blocks, evaluating display groups 90 to 97 (Performance increase)
Display group 91 (Performance increase) Camshaft adjustment
While driving
Read Measuring Value Block 91
Indicated on display
xxxx/min xxx% Text x.x KW
1 2 3 4 Display zones Specification Evaluation
Active camshaft adjustment angle
-3 to 25 CA ---
Camshaft adjustment On / Off
--- ---
Engine load 10 to 150% ---
Engine speed (idling speed)
Manual transmission
Automatic transmission
700 to 6800 RPM
640 to 6800 RPM
Page 01-171
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Note:
For display zones 3 and 4:
There are only two positions for the adjustable camshaft, the normal position and the switched position. To bring the camshaft into the switched position, accelerate the vehicle in 1st gear from rest. Display zone 4 shows the actual position of the adjustable camshaft. If the activation of the adjustable camshaft is active - see display zone 3- it can be seen in display zone 4 whether in fact an adjustment of the camshaft has occurred (feed-back information). Camshaft in normal position = -3.0 to +6.0 CA. Camshaft in switched position = 16.0 to 25.0 CA
If during test drive display zone 4 displays a value between 6.0 CA and16.0 CA , the electric camshaft adjustment valve is correctly directing oil pressure to the mechanical camshaft adjuster, but it cannot attain its end position (e.g. for reasons of stiffness/tightness).
Checking camshaft adjustment:
Repair Manual, 1.8 Liter 4-Cyl. 5V Turbo Engine Mechanical, Engine Code(s): AWD, AWW, AWP, Repair Group 15; Servicing valve gear, checking camshaft adjustment
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Display group 94 (Performance increase) Camshaft adjustment
Vehicle stationary, engine running at increased idling speed
Control module in mode 04-Basic settings
Read Measuring Value Block 94
Indicated on display
xxxx/min Text Text
1 2 3 4 Display zones Specification Evaluation
Result of diagnostic
(Test OFF/Test ON/Syst.OK/Syst. nOK)
Syst. OK ---
Camshaft adjustment
CAM-ADJ.ON
CAM-ADJ.OFF
CAM-ADJ.ON ---
Engine speed 1080 to 2600 rpm
---
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Measuring value blocks, evaluating display groups 110 to 119 (Charge pressure control)
Display group 111 - Charge pressure control - adaptation valves for boost pressure limitation
Engine running at idling speed
Read Measuring Value Block 111
Indicated on display
x.x% x.x% x.x% x.x%
1 2 3 4 Display zones Specification Evaluation
RPM range 4 -15 to 160% ---
RPM range 3 -15 to 160% ---
RPM range 2 -15 to 160% ---
RPM range 1 -15 to 160% ---
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Display group 113 - Charge pressure control
Engine running at idling speed
Read Measuring Value Block 113
Indicated on display
xxxx RPM
xxx.x% xxx.x% xxx mbar
1 2 3 4 Display zones Specification Evaluation
atmospheric pressure (air pressure)
500 to 1200 mbar
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Angle sensor -1- for throttle drive (power accelerator actuation) -G187-
0 to 100%
---
Engine load 10 to 150% ---
Engine speed (idling speed)
Manual transmission
Automatic transmission
700 to 6800 RPM
640 to 6800 RPM
Page 01-171
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Evaluating display group 113, display zone 4 - atmospheric pressure
Elevation Air pressure
0 m 998 mbar
500 m 954 mbar
1000 m 902 mbar
1500 m 853 mbar
2000 m 805 mbar
2500 m 756 mbar
3000 m 704 mbar
3500 m 655 mbar
4000 m 607 mbar
Note:
The air pressure can fluctuate depending upon the atmospheric conditions.
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Display group 114 (Charge pressure control)
While driving
Read Measuring Value Block 114
Indicated on display
xxx.x% xxx.x% xxx.x% xxx.x%
1 2 3 4 Display zones Specification Evaluation
Wastegate bypass regulator valve duty cycle
0 to 100% ---
Engine load 10 to 150% ---
Specified engine load after correction (reduced via knock control, altitude adaptation and coolant temperature)
max. 150% ---
Specified engine load (mapped value via accelerator pedal position)
max. 150% ---
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Display group 115 (Charge pressure control)
While driving
Read Measuring Value Block 115
Indicated on display
xxxx RPM
xxx.x% xxx mbar
xxx mbar
1 2 3 4 Display zones Specification Evaluation
Actual charge value
Engine code AWW
Engine code AWP
max. 1800 mbar
max. 2200 mbar
---
Specified charge pressure
Engine code AWW
Engine code AWP
max. 1800 mbar
max. 2200 mbar
---
Engine load 10 to 150% ---
Engine speed (idling speed)
Manual transmission
Automatic transmission
700 to 6800 RPM
640 to 6800 RPM
---
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Display group 116 - Charge pressure control
While driving
Read Measuring Value Block 116
Indicated on display
xxxx RPM
x.x% x.x% x.x%
1 2 3 4 Display zones Specification Evaluation
Intake air temperature correction factor
7 to -15% ---
---
Fuel correction factor 0 to -27% ---
Engine speed (idling speed)
Manual transmission
Automatic transmission
700 to 6800 RPM
640 to 6800 RPM
---
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Display group 117 - Charge pressure control
While driving
Read Measuring Value Block 117
Indicated on display
xxxx RPM
xxx.x% xxx.x% xxx mbar
1 2 3 4 Display zones Specification Evaluation
Specified charge pressure
Engine code AWW
Engine code AWP
1800 mbar
2200 mbar
---
Angle sensor -1- for throttle drive (power accelerator actuation) -G187-
0 to 100% ---
Throttle position (TP) sensor -G79- 0 to 100% ---
Engine speed (idling speed)
Manual transmission
Automatic transmission
700 to 6800 RPM
640 to 6800 RPM
---
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Display group 118 - Charge pressure control
While driving
Read Measuring Value Block 118
Indicated on display
xxxx RPM
xxx.x C
xxx.x% xxx mbar
1 2 3 4 Display zones Specification Evaluation
Actual charge value
Engine code AWW
Engine code AWP
max. 1800 mbar
max. 2200 mbar
---
Wastegate bypass regulator valve duty cycle
0 to 95%
---
Intake air temperature max. 110 C ---
Engine speed (idling speed)
Manual transmission
Automatic transmission
700 to 6800 RPM
640 to 6800 RPM
---
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Display group 119 (Charge pressure control)
While driving
Read Measuring Value Block 119
Indicated on display
xxxx RPM
x.x% x.x% xxx mbar
1 2 3 4 Display zones Specification Evaluation
Actual charge value
Engine code AWW
Engine code AWP
max. 1800 mbar
max. 2200 mbar
---
Wastegate bypass regulator valve duty cycle
0 to 100%
---
Boost pressure limitation -15 to 160% ---
Engine speed (idling speed)
Manual transmission
Automatic transmission
700 to 6800 RPM
640 to 6800 RPM
---
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Measuring value blocks, evaluating display groups 120 to 129 (Communication)
Display group 120 -Traction control -ASR-
While driving
Read Measuring Value Block 120
Indicated on display
xxxx RPM
xxx Nm
xxx Nm
Text
1 2 3 4 Display zones Specification Evaluation
Status TC active / TC n.active
---
Actual engine load 0 to 260 Nm ---
Specified engine load 0 to 440 Nm ---
Engine speed (idling speed)
Manual transmission
Automatic transmission
700 to 6800 RPM
640 to 6800 RPM
---
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Display group 122 -Transmission (automatic only)
While driving
Read Measuring Value Block 122
Indicated on display
xxxx RPM
xxx Nm
xxx Nm
Text
1 2 3 4 Display zones Specification Evaluation
Status Engine interv./no
engine interv.
---
Actual engine load 0 to 260 Nm ---
Specified engine load 0 to 440 Nm ---
Engine speed (idling speed)
Manual transmission
Automatic transmission
700 to 6800 RPM
640 to 6800 RPM
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Display group 125 -Communication -data bus messages-
Engine running at idling speed
Read Measuring Value Block 125
Indicated on display
Text Text Text Text
1 2 3 4 Display zones Specification Evaluation
Air conditioning A/C 1
Combi-instrument Combi 1 ---
ABS status ABS 1 ---
Transmission status Transmission 1
---
Note:
For display zone 125:
Specification = 1; Control modules with active data bus are displayed.
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Display group 126 -Communication -data bus messages-
Engine running at idling speed
Read measured value block 126
Indicated on display
Text
1 2 3 4 Display zones Specification Evaluation
Airbag status Airbag 1 ---
Note on display group 126:
Specification = 1; Control modules with active data bus are displayed.
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