Post on 23-Feb-2018
Volkswagen of America, Inc.Volkswagen AcademyPrinted in U.S.A.Printed 12/2004Course Number 891403
©2004 Volkswagen of America, Inc.
All rights reserved. All information containedin this manual is based on the latestinformation available at the time of printingand is subject to the copyright and otherintellectual property rights of Volkswagen ofAmerica, Inc., its affiliated companies and itslicensors. All rights are reserved to makechanges at any time without notice. No partof this document may be reproduced,stored in a retrieval system, or transmitted inany form or by any means, electronic,mechanical, photocopying, recording orotherwise, nor may these materials bemodified or reposted to other sites withoutthe prior expressed written permission ofthe publisher.
All requests for permission to copy andredistribute information should be referredto Volkswagen of America, Inc.
Always check Technical Bulletins and the latestelectronic repair information for informationthat may supersede any information includedin this booklet.
Trademarks: All brand names and productnames used in this manual are trade names,service marks, trademarks, or registeredtrademarks; and are the property of theirrespective owners.
i
Table of Contents
Important/Note!
New!
This Self-Study Program covers the electrical system of thenew Jetta!
This Self-Study Program is not a Repair Manual. This
information will not be updated.
For testing, adjustment and repair procedures, always referto the latest electronic service information.
Introduction ................................................................................1
Course Introduction, Electrical System Fuses and Relays,Communication Network, Drivetrain CAN-bus ControlModules, Convenience CAN-bus Control Modules,Infotainment CAN-bus Control Modules, Instrument Clusterand Diagnostic CAN-bus Control Modules
LIN Bus ......................................................................................14
LIN Bus
Power Supply ...........................................................................16
Electrical Box, Relay Carrier, Fuse Box, Data Bus On BoardDiagnostic Interface J533, Transport Mode, Vehicle ElectricalSystem Control Module J519, Exterior Light Control,Convenience Lighting, Windshield Wiper System, HeadlightWasher System, Windshield Washer Quick Disconnect/LockSystem, Instrument Cluster Control Module J285, Anti-TheftImmobilizer Control Module J362, Warning Lights in theInstrument Cluster, Comfort System Central Control ModuleJ393
Convenience and Safety Systems ..........................................41
Personalization, Accessing Programming Menus, Radios,Antennas, Multi-Function Steering Wheel, Headliner PrintedCircuits, Tamper-Proof Guard
1
Introduction
Course Introduction
The new Jetta makes extensive use ofcontrol modules and networking usingmultiple Controller Area Network (CAN)buses. Signals are transmitted digitally fromone control module to another on eachCAN-bus, eliminating the need for aseparate wire for each signal. The use ofCAN-bus communication for controls andaccessories reduces the wires needed inthe vehicle.
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This Self-Study Program covers the newJetta’s electrical system. This program alsodescribes the new control modules, thenetworking of various body electricalsystems, and the various CAN-bussystems.
2
Introduction
Electrical System Fuses and Relays
Locations
The electrical system on the new Jetta isentirely redesigned. Because of this, themounting location of fuse and relay centershave changed.
The adjacent diagram shows the variouslocations.
Fuse and relay center underthe hood on the driverside
Back-up fuse box under thehood on the driverside
Fuse box behind the instrumentcluster
3
Introduction
Relay carrier of on board powersupply control module, on leftunder the instrument cluster
Relay carrier below the instrumentcluster on the driverside, abovethe on board power supply controlmodule
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4
Introduction
Communication Network
Overview of Networked Control Modules
To allow communication between thecontrol modules without interference, theyare connected by several data bus systems.
The Data Bus On Board DiagnosticInterface J533 (Gateway) allowscommunication between the following databuses:• Drivetrain CAN-bus
• Convenience CAN-bus
• Infotainment CAN-bus
• Instrument cluster CAN-bus
• Diagnosis CAN-bus
In addition to the CAN-bus, someelectric componentscommunicate through the LINbus.
Key
D Ignition/Starter SwitchE221 Control Module in Steering WheelG85 Steering Angle SensorG397 Rain/Light Recognition SensorH8 Alarm HornJ104 ABS Control ModuleJ136 Memory Seat/Steering Column
Adjustment Control ModuleJ217 Transmission Control Module (TCM)J220 Motronic Engine Control ModuleJ234 Airbag Control ModuleJ255 Climatronic Control ModuleJ285 Instrument Cluster Control ModuleJ334 Anti-Theft Engine Disable Control ModuleJ364 Auxiliary Heater Control ModuleJ386 Driver's Door Control ModuleJ387 Front Passenger's Door Control ModuleJ388 Left Rear Door Control ModuleJ389 Right Rear Door Control ModuleJ393 Comfort System Central Control ModuleJ400 Wiper Motor Control ModuleJ431 Headlamp Range Control ModuleJ446 Parking Aid Control ModuleJ500 Power Steering Control ModuleJ503 Radio/Navigation Display Control ModuleJ519 Vehicle Electrical System Control ModuleJ525 Digital Sound System Control ModuleJ527 Steering Column Electronic Systems
Control ModuleJ533 Data Bus On Board Diagnostic InterfaceJ587 Selector Lever Sensor System Control
Module*J604 Auxiliary Air Heater Control ModuleJ743* Direct Shift Gearbox (DSG) MechatronicR RadioT16 16-Pin Connector*On direct shift gearboxes only
5
Introduction
Engine Control Module J220
DSG Mechatronics
J743
ABS CM J104
Selector Lever CM J587
Power Steering CM J500
Headlamp Range
CM J431
Data Bus On Board Diagnostic Interface J533
Navigation CM J503/Radio R
SAT Radio
Digital Sound System CM J525
Auxiliary Heater CM J364*
Alarm Horn H8
Wiper Motor CM J400
Auxiliary Air Heater
CM J604*
Right Rear Door CM J389
Front Passenger
Door CM J387
Driver's Door CM J386
Left Rear Door CM J388
Climatronic CM J255
Memory Seat/ Steering CM J136
Instrument Cluster CM J285
Anti-Theft Engine Disable (Immobilizer IV) CM J334
Vehicle Electrical CM J519
Airbag CM J234
Steering Wheel
CM E221
Parking Aid CM J446
Steering Angle Sensor G85
Steering Column Electronic Systems
CM J527
Ignition/Starter Switch D
Rain/Light Recognition Sensor G397
Comfort System Central
CM J393
Transmission CM J217
* May not be available on North American market vehicles
16-PinConnector
T16
Drivetrain CAN-bus
ConvenienceCAN-bus
Infotainment CAN-bus
LIN Bus
Instrument ClusterCAN-bus
Diagnosis CAN-bus
CAN-busWire
CommunicationsLine
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S873403_31
6
Introduction
Drivetrain CAN-bus ControlModules
Control Module Locations
The adjacent illustration shows the controlmodules of the Drivetrain CAN-bus andtheir locations.
The data transfer rate is 500 kbit/s. The datais transferred through the CAN high wire(orange/black) and CAN low wire(orange/brown). To ensure reliablecommunication without conflict orinterference, the CAN wires are twistedtogether.
Steering Column ElectronicSystems Control Module J527,beneath steering column switch
Motronic EngineControl Module (ECM)J220, under plenumchamber cover
Data Bus On BoardDiagnostic Interface J533beneath instrument cluster,above accelerator pedal
Transmission ControlModule (TCM) J217, onleft inside wheel housing
7
Introduction
ABS Control Module J104on the right side of thebulkhead in the enginecompartment
Airbag Control Module J234,beneath center console infront of tunnel
Headlamp RangeControl Module J431on the right side of theglove compartment(Bi-Xenon only)
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8
Introduction
Climatronic ControlModule J255 incenter console
Steering Column ElectronicSystems Control ModuleJ527, beneath steeringcolumn switch
Data Bus On Board DiagnosticInterface J533 beneath theinstrument cluster, aboveaccelerator pedal
Vehicle Electrical SystemControl Module J519 underthe instrument cluster, onrelay carrier
Convenience CAN-bus ControlModules
Control Module Locations
The adjacent illustration shows the controlmodules of the Convenience CAN-bus andtheir locations.
The data transfer rate is 100 kbit/s. The datais transferred through the CAN high wire(orange/green) and the CAN low wire(orange/brown). To ensure reliablecommunication without conflict orinterference, the CAN wires are twistedtogether.
9
Introduction
Comfort System Central ControlModule J393 on right sidebeneath the instrument cluster,behind glove compartment
Door Control Modules J386,J387, J388, J389, installedin respective doors
Parking AidControl ModuleJ446 in rear rightside panel
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10
Introduction
Infotainment CAN-bus ControlModules
Control Module Locations
The adjacent illustration shows the controlmodules of the Infotainment CAN-bus andtheir locations.
The Infotainment CAN-bus transfer rate is100 kbit/s. The data is transferred throughthe CAN-bus high wire (orange/purple) andthe CAN-bus low wire (orange/brown). Toensure reliable communication withoutconflict or interference, the CAN-bus wiresare twisted together. Radio/Navigation Display
Control Module J503(for 2006 model year) orRadio R, in center console
CD Changer R41 in centerconsole, beneath frontarmrest
11
Introduction
Operator Electronics andTelephone Control Module J412under right front seat, beneathcarpet covering on right sill panel(delayed introduction)
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12
Introduction
Instrument Cluster and DiagnosisCAN-bus Control Modules
Instrument Cluster CAN-bus
Information is exchanged between theInstrument Cluster Control Module J285and the Data Bus On Board DiagnosticInterface J533 via the instrument clusterCAN-bus. These are the only controlmodules in this data bus system.
Diagnosis CAN-bus
The transfer of data between the VAS5051/5052 scan tool and Data Bus OnBoard Diagnostic Interface J533 is throughthe diagnosis CAN-bus.
Data Transfer Rate
The transfer rate for both CAN-buses is 500kbit/s.
Instrument Cluster ControlModule J285
16-Pin Connector T16 on leftside, beneath instrumentcluster
13
Introduction
Data Bus On Board DiagnosticInterface J533 beneath theinstrument cluster, aboveaccelerator pedal
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14
LIN Bus
Components in a LIN bus system include amaster control module and up to 16 slavecontrol modules. All communication isinitiated by the master control module.Slave control modules cannot communicateindependently.
Several independent LIN buses withdifferent functions operate in the vehicle.Information is exchanged betweenindividual bus systems by the mastercontrol modules that are connected to theCAN-bus.
Key
E221 Control Module in Steering WheelG397 Rain/Light Recognition SensorH8 Alarm HornJ393 Comfort System Central Control Module
LIN Bus System
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J400 Wiper Motor Control ModuleJ519 Vehicle Electrical System Control ModuleJ527 Steering Column Electronic Systems Control
Module
J400
J519
J527
G397
E221 J393
H8
LIN Bus
The Local Interconnect Network (LIN) is asub-bus system that includes all associatedcomponents within a specific area.• The local sub-system is a cost effective
version of the CAN-bus
• The specified component interfaceallows easy exchange of the connectors
• Bus connection in crash area
• Bus connection in critical safety areas
15
LIN Bus
Master Control Module
The master control module, which isconnected to the CAN-bus, controls the LINbus system.
Primary Functions
• Conversion of local data bus informationto data format of CAN-bus
• Monitoring of data bus conversion andrate of data transfer
• Control of data transfer cycle
• Transfer of diagnostic data from slavecontrol modules
Slave Control Module
In the LIN bus system, individual controlmodules, sensors or actuators can act asslave control modules.
The electronics integrated in the controlmodules evaluate the information, convertit into digital information and send it, oncethe request has been made, through theLIN bus to the master control module.
Data commands are sent to the actuatorsby the master control module through theLIN bus.
After interrogating the master controlmodule, sensors send status information tothe master control module and perform atarget/reference comparison.
The comfort system central control module below shows the wiring of the LIN andCAN-buses.
CAN-bus Wires
S319_068
LIN Bus Wires
16
Power Supply
Electrical Box
Fuses for components in the enginecompartment and the vehicle’s interior arelocated in the electrical box.
The distance between the electrical boxand the battery is approximately 1.6 ft.(500mm). This allows the battery tofunction as a high frequency filter betweencomponents that are mounted directly onthe electrical box.
The increased number of fuses allows therating of the fuses to be set to theindividual components.
S319_031
Location
The electrical and back-up fuse boxes arelocated in a housing within the enginecompartment.
17
Power Supply
Electrical Box
In addition to the fuses, the following relaysare also located in the electrical box:• Voltage Supply Terminal 15 (B+) Relay
J329
• Power Supply (Terminal 30, B+) RelayJ317
• Power Supply Relay (Terminal 50) J682
• Fuel Pump (FP) Relay J17 (except FSI)
Back-up Fuse Box
The back-up fuse box contains fuses for:• Alternator
• Electro-mechanical power steering
• Radiator fan
• Power supply from terminal X
• Auxiliary heater
• Terminal 30
S319_010
S319_009
18
Power Supply
Relay Carrier
Location
The relay carrier and the supply controlmodule are located on the driverside underthe instrument cluster.
Relay Carrier
Additional relays may be included on therelay carrier depending on equipmentoptions.
On vehicles with power seat adjustment,the automatic safety device (thermal safety)is installed on the relay carrier.
Supply Control Module Relay Carrier
The following relays are located on thesupply control module relay carrier:• Power supply relay terminal 30G
• Voltage Supply Terminal 15 (B+) RelayJ329
• Power Supply Relay 1 (Terminal 75) J680
• Rear Window Defogger Relay J9
• Horn Relay J413
• Dual Washer Pump Relay 1 J729
• Dual Washer Pump Relay 2 J730
S319_012
S319_065
19
Power Supply
Fuse Box
Location
The fuse box is located on the driverside ofthe instrument cluster behind a cover.
Fuses
The fuse box contains fuses for theelectrical components of the vehicle.
Please refer to current servicerepair information for fuselocations.
S319_013
20
Power Supply
S307_015
S319_014
Data Bus On Board DiagnosticInterface J533
Due to the complexity of vehicle functions,large amounts of data must be exchanged.To ensure optimal data exchange, severaldata bus systems are required.
The interface function that was previouslypart of the instrument cluster or supplycontrol module is now performed by J533.It forms the interface for data bus systemsthat are independent of each other andallows information to be exchanged withoutconflict or interference.
Location
J533 is located beneath the instrumentcluster, above the accelerator pedal.
DiagnosticConnection
Diagnostic CAN-bus
Data Bus On Board Diagnostic Interface J533
Instrument ClusterCAN-bus Instrument Cluster
DrivetrainCAN-bus
ConvenienceCAN-bus
InfotainmentCAN-bus
21
Power Supply
Master Functions
J533 manages the master functions of theterminal 15 run-on for the DrivetrainCAN-bus along with the sleep and wake-upmodes for the data bus systems.
Key
G85 Steering Angle SensorJ104 ABS Control ModuleJ217 Transmission Control Module (TCM)J220 Motronic Engine Control Module (ECM)
J271 Motronic Engine Control Module (ECM)Power Supply Relay
J500 Power Steering Control ModuleJ533 Data Bus On Board Diagnostic InterfaceJ587 Selector Lever Sensor System Control Module
S307_047
Drivetrain CAN-bus
Internally Switched Terminal 15
J587
J500
Term. 30 J271
J220
G85
J217 J104
J533
Terminal 15 Run-On
Some control modules on the CAN-busmust exchange information when terminal15 is off. When necessary, a message issent to the CAN-bus to enable the run-onmode. The control modules involved makea connection internally from terminal 30 toterminal 15, allowing them to communicate.The Power Steering Control Module J500,for example, can communicate with theother control modules.
The run-on mode can last between tenseconds and fifteen minutes. The run-onlength of time depends on the data beingtransferred.
The run-on period ends when J533 sendsthe sleep command.
Terminal 15 Run-On Control Modules
22
Power Supply
Data Bus Sleep and Wake-Up Modes
When all of the control modules on theconvenience and Infotainment CAN-busindicate that they are ready for stand-by, acontrol module gives the signal to 'sleep'.The voltage level of the low signal is12 volts and 0 volts for the high signal.
A control module also gives the wake-upsignal when the data bus requiresactivation, such as when the doors areunlocked.
Sleep Mode S307_048Wake-UpMode
Wake-Up Signal
The data bus on board diagnostic interfacemonitors the sleep function.
If the Drivetrain CAN-bus does not go intosleep mode, the Convenience andInfotainment CAN-buses will not go intosleep mode.
If the Convenience CAN-bus does not gointo sleep mode, the Infotainment CAN-buswill also not go into sleep mode.
23
Power Supply
Transport Mode
During transport to dealerships, powerconsumption is reduced to protect thebattery.
Activating the transport mode isolates thefollowing systems and components:• Radio
• Radio remote control
• LED indicator in door
• 30 second interior light switch-off delay
The transport mode is switched ON andOFF with the VAS 5051 scan tool throughthe vehicle’s self-diagnosis.
“Tra” shows in the odometer display of theinstrument cluster when transport mode isactive.
The transport mode is only available duringthe vehicle’s first 93 miles (150km). Afterreaching this mileage, the J533automatically switches transport mode OFF.Transport mode cannot be turned ON againafter 93 miles (150km) is reached.
S319_029
S319_030
24
Power Supply
Relay Carrier
Vehicle Electrical SystemControl Module J519
S319_065
S307_017
Vehicle Electrical System ControlModule J519
Location
The Vehicle Electrical System ControlModule J519 is located under theinstrument cluster. It is attached to the relaycarrier.
25
Power Supply
Primary Functions
The vehicle electrical system controlmodule actuates and controls the followingfunctions:• Exterior light control and monitoring
– In the event of bulb failure, therelevant warning lamp will light or atext message will display in theinstrument cluster
• Convenience lighting:– Coming Home– Leaving Home– Instrument cluster backlight level
• Console lighting
• Windshield wipers– Directs CAN-bus signals from the
vehicle electrical system controlmodule to the wiper motor controlmodule
• Windshield washer pump
• Turn signal control
• Electric load management shut-offbelow 11.8 volts
Secondary Functions
The vehicle electrical system controlmodule also controls the followingfunctions:• Interior light control
– Terminal 30G determines whatvoltage is supplied to the interiorlights.
• Heated rear window– Via the heated rear window button
• Terminal activation– Terminal 75x is activated via an ‘X’
contact relief relay.– Terminal 15 is activated via voltage
supply terminal 15 (B+) relay in theelectrical box.
– Terminal 50 is activated via powersupply relay (terminal 50) in theelectrical box.
• Fuel pump readiness– The electric fuel pump is supplied
with power when the driver's door isopened. After the engine hasstarted, power is supplied from theMotronic engine control module.
26
Power Supply
Electrical Load Management
The electrical load management makessure that there is enough reserve electricalpower in the battery to start the engine.
If necessary, convenience system electricaldevices are deactivated withoutcompromising safety requirements.
The vehicle electrical system controlmodule monitors the engine speed, thebattery voltage and the alternator loadthrough the DF signal (dynamo field).
From this information and from informationabout which devices are on for shortperiods, the vehicle electrical systemcontrol module evaluates the power supplyload state.
Based on this evaluation, the vehicleelectrical system control module canincrease engine speed via the enginecontrol module or deactivate conveniencedevices.
Three load management operating modesare possible.
Operating Mode 1
Terminal 15 ON and alternator active
Management Activities
At a battery voltage below 12.7 volts, thevehicle electrical system control modulecommands an increase in the engine idlespeed.
At a battery voltage below 12.2 volts, thefollowing electrical devices are turned OFF:• Heated seats
• Heated windshield
• Heated exterior mirrors
• Steering wheel heating
• Footwell lighting
• Interior door handle lights
• Reduction and deactivation ofClimatronic
• Warning and deactivation ofInfotainment
27
Power Supply
Operating Mode 2
Terminal 15 ON and alternator inactive
Management Activity
At a battery voltage below 12.2 volts, thefollowing electrical devices are turned OFF:• Reduction and deactivation of air
conditioning
• Footwell lighting
• Interior door handle lights
• Entry/exit lights
• Leaving home
• Warning and deactivation ofInfotainment
Operating Mode 3
Terminal 15 OFF and alternator inactive
Management Activity
At a battery voltage below 11.8 volts, thefollowing electrical devices are turned OFF:• Interior lights
• Footwell lighting
• Inner door handle lights
• Entry/exit lights
• Leaving home
• Infotainment, e.g. radio
The primary differences of component orsystem deactivation in the various operatingmodes is the order in which they aredeactivated.
Operating mode 3 deactivates severalelectrical devices at once.
Deactivation is cancelled when theconditions for deactivation are no longerpresent.
When deactivation occurs,notification appears in theinstrument cluster display. A faultentry is also logged in theelectrical system control modulefault memory.
28
Power Supply
Exterior Light Control
Headlights
The twin headlights with low and highbeam reflectors are equipped with H7halogen bulbs as standard equipment.
To improve visibility for other drivers, theturn signals are located beneath theheadlights, providing a well-balanceddistribution of light from the turn signal.
On some vehicles, a combination of theBi-Xenon module, a high beam reflector,and H7 bulbs is an option.
Bi-Xenon equipped vehicles are alsoenhanced with a washer system anddynamic headlight range control.
S319_034
High BeamHeadlight
Turn SignalLight Low Beam
Headlight
Bulb Replacement with
One-Touch-System
The One-Touch-System allows both thecover and H7 bulbs to be removed with atwist motion. A guide assists withinstallation.
S873403_28
29
Power Supply
Rear Lights
Available for the first time on the new Jettaare the split rear lights with roundelements.
The rear light unit, integrated into the sidepanel, provides the tail, brake, and turnsignal light functions.
An additional reverse light is located in thetrunk deck.
An auxiliary brake light is located in the rearwindow. Turn signals in the exterior mirrorscomplement the front and rear turn signals.They provide additional visual information toother drivers.
Light Switch
The rotary light switch is a semi-conductormodule that sends switch positioninformation to the vehicle electrical systemcontrol module.
The vehicle electrical system controlmodule controls all exterior light functions.
Advantages
• Elimination of voltage spikes in therotary light switch increases bulb life
Special Functions
• All bulbs are monitored for failure
• The bulb monitoring system informationis displayed in the instrument cluster
Reverse LightTaillight
Turn Signal Light
Taillight
Brake Light
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30
Power Supply
Convenience Lighting
Coming Home
When occupants exit the vehicle and closethe doors, including the trunk, the vehiclesurround lighting is activated for a shorttime.
Leaving Home
After the vehicle has been unlocked usingthe remote control key, the surroundlighting is turned ON for a short time.
After the convenience lightinghas turned OFF or beeninterrupted, the Coming Homefunction cannot be reactivateduntil the ignition is switched ON.
If the rotary light switch is in the “low beamposition,” the lights are switched OFFcompletely once the lighting period haselapsed.
If the rotary light switch is in the “side lightposition,” the side light bulbs remain ON foran additional time after the surroundlighting has turned OFF.
31
Power Supply
The following lights are switched ON by theComing Home and Leaving Homefunctions:• Front side lights
• Low beam headlights
• Taillights
• License plate light
Activation or deactivation of thecoming and leaving homefunctions and the lighting periodsare set in the instrument clusterby accessing the “Light & Vision”MFI personalization menu.
High BeamHeadlight
Taillight
Low BeamHeadlightRunning
Light
S873403_28
S873403_29
SideLight
32
Power Supply
Windshield Wiper System
Wiper Operation
The wiper system consists of a singlemotor with mechanical connections to thewiper arms.
The selected position of the WindshieldWiper Switch E is sent to the SteeringColumn Electronic Systems Control ModuleJ527 and relayed through the ConvenienceCAN-bus to the Vehicle Electrical SystemControl Module J519. The vehicle electricalsystem control module sends informationabout the selected wiper position throughthe LIN bus to the Wiper Motor ControlModule J400, which controls wiper action.
On vehicles with rain and light sensors, thewiper frequency is calculated in the rainsensor mode and sent to the wiper motorcontrol module.
S319_069
During intermittent operation, wipermovement is speed dependent and variesbetween 2 and 24 seconds.
The wiper control system can detect anobstruction and react according to thedegree of resistance. The wipers will try tomove the obstacle out of the way. If it stillhas not been removed after the fifthattempt, the wipers will stay in thatposition. Activation of the wipers after theobstacle has been removed isaccomplished by turning the switch ON.
Instead of rotating 360°, thewiper assembly reverses every150°. This allows a much smallerspace for wiper linkage.
33
Power Supply
J104
Key
D Ignition/Starter SwitchE Windshield Wiper SwitchF266 Front Hood SwitchG397 Rain/Light Recognition SensorJ104 ABS Control Module
S319_016
J400 Wiper Motor Control ModuleJ519 Vehicle Electrical System Control ModuleJ527 Steering Column Electronic Systems Control
ModuleJ533 Data Bus On Board Diagnostic Interface
Overview of Windshield Wiper System
J533
G397
F266
D
J527
E
J400
J519
34
Power Supply
Service/Winter Position
Moving the wiper switch to the “tipwiping” position (down) within 10 secondsof switching OFF the ignition causes thewipers to move to the end position of wipertravel known as the service/winter position.
When the wipers are in the service/winterposition, the wiper blades can be easilyreplaced or the wiper arms can be lifted toprevent the rubber from freezing to thewindshield.
The wipers will revert to the rest positionwhen the windshield wiper switch is turnedOFF and ON with the ignition ON or if thevehicle reaches a speed of 1.2 mph(two km/h).
When the vehicle is parked andthe hood is open, the wipers willnot operate.
Headlight Washer System
The headlight washer system (with optionalBi-Xenon headlamps) is activated by thevehicle electrical system control module aspart of the “wash/wipe” function.
Activation Conditions
• Ignition ON
• Side, low beam or assistant drivinglights ON
• Steering column switch in “wash/wipe”position
Headlight Wash Cycle
• Runs every fourth time the “wash/wipe”function is activated by the controlmodule
S319_015
35
Power Supply
Disengaged
S319_049
S319_066
ClipWasher Jet
Washer JetClip
Engaged
Windshield Washer QuickDisconnect/Lock System
Features
• Easy removal/assembly
• Improved longevity
• Improved anti-crimp and freezeprotection
• Convoluted-type tubes
The quick disconnect/lock system for thewindshield washer system is a new featureof the Jetta.
With this system, the windshield washerhoses are convoluted tubes that minimizethe chance of crimping.
The tube connections to the windshieldwasher pump and washer jets are securedby clips.
To disassemble, pull the clip outward byhand to allow hose removal.
To install, press the hose onto the openinguntil the clip engages automatically.
36
Power Supply
Instrument Cluster Control ModuleJ285
J285 receives information through the DataBus On Board Diagnostic Interface J533and the instrument cluster CAN-bus.
Additional external sensor signals that aresent to the instrument cluster by separatewiring:• Oil Pressure Switch F1
• Brake Fluid Level Warning Switch F34
• Outside Air Temperature Sensor G17
• Engine Coolant Level (ECL) Sensor G32
• Windshield Washer Fluid Level SensorG33
• Left Front Brake Pad Wear Sensor G34
• Fuel Pump (FP) Control Module J538
Diagnosis
Diagnosis of J285 performed using thediagnosis tester VAS 5051/5052 throughthe CAN-bus.
J285 is also capable of self-monitoring. If afault occurs, the letters “def” will appear inthe instrument cluster display.
37
Power Supply
Active Immobilizer
If the Immobilizer is active, it emits anaudible sound and a warning lightilluminates in the tachometer display.
Adaption channels and stored faults arehandled separately.
The Immobilizer address is word 25 fordiagnosis.
S319_051
Immobilizer Light
Anti-Theft Immobilizer ControlModule J362
Immobilizer IV
The Anti-Theft Immobilizer Control ModuleJ362 is integrated into the instrumentcluster control module. With the ignitionswitched ON, it enables or disables specificvehicle functions.
The only way to communicate with theImmobilizer is by using Guided Fault Findingin the VAS 5051 scan tool.
Diagnosis of the Immobilizercontrol module is performed viathe “Guided Fault Finding”function.
38
Power Supply
Warning Lights in the InstrumentCluster
S319_017
Symbol Warning Light Indicator Warning Message or Description
Airbag Light Airbag faultAirbag belt tensioner deactivated
Electronic stabilization program (ESP) Light
Parking brake system Light Handbrake applied1 x audible warning
Electronic power steering (EPS) Light Low priority fault yellowHigh priority fault red
Oil pressure warning MFI Display Stop-Oil pressure turn engine OFFSee operating instruction3 x audible warnings
Electronic Power Control (EPC) Light
Preglow period (diesel engines only) Light
Low brake fluid level Flashing Stop-Brake fluidOperating instructions3 x audible warnings
Brake pad wear indicator MFI Display Check brake lining1 x audible warning
Anti-lock braking system (ABS) Light ABS
Electronic brake pressure Flashing 3 x audible warningsdistribution (EBD)
39
Power Supply
Symbol Warning Light Indicator Warning Message or Description
Left turn signal Light Audible warning
Right turn signal Light Audible warning
High beam headlights Light
Cruise control system (CCS) Light
Bulb blown/driving light defective Light Example–Front right low beam headlight defective
Trunk/door open MFI Display Trunk open1 x audible warning
Fuel reserve low MFI Display Replenish fuel1 x audible warning
Coolant level low/coolant MFI Display Stop–check coolanttemperature high Operating instructions
3 x audible warnings
Alternator low voltage output Light
Engine check Light Engine fault serviceOnboard diagnosis (OBD) Exhaust emissions service
Hood open Light Door warning, hood, 1 x audible warningvehicle moving less than 3.7 mph (6 km/h)
Rear fog light Light
Oil level low Light Check oil levelOil sensor service1 x audible warning
Tire pressure low Light 1 x audible warning
Shift lock Light
Seat belt Light Please use seatbeltBelt warning alarm
Washer fluid low MFI Display Add washer fluid1 x audible warning
Anti-theft Immobilizer Flashing Immobilizer active1 x audible warning
40
Power Supply
Comfort System Central ControlModule J393
Location
The Comfort System Central ControlModule J393 is located beneath theinstrument cluster, on the passenger sidebehind the glove compartment.
Functions
• Control of central locking
• Activation of rear door locks
• Activation of fuel tank door release
• Activation of trunk release
• Activation of anti-theft engine disable orImmobilizer alarm system via LIN bus
In earlier models, the mirrors werecontrolled via the comfort system centralcontrol module. The door control modulesnow control all systems in the door area,including the mirrors. This reduces electricalwiring.
S319_064
J393 is the master control module in theLIN bus. This control module initiates datatransfer for the anti-theft engine disable andImmobilizer alarm systems. Included in theanti-theft engine disable and Immobilizeralarm systems are interior monitoringsensors, smart alarms and the vehicleinclination sensor.
Depending on the model and options,some electrical components andconnectors may not be used in the comfortsystem central control module.
41
Convenience and Safety Systems
Personalization
The user-based settings for variousfunctions in the Convenience andInfotainment CAN-bus systems areselected by pressing the controls on theright windshield wiper stack whileobserving the MFI Menu options in theinstrument cluster display. Selections arestored in the control module, whichcontrols all functions.
J285
S319_067
Key
J285 Instrument Cluster Control ModuleJ393 Comfort System Central Control ModuleJ519 Vehicle Electrical System Control ModuleJ527 Steering Column Electronic Systems Control ModuleJ533 Data Bus On Board Diagnostic Interface
J527J533
J519 J393
Data transfers between the instrumentcluster control module and associatedcontrol modules is managed by theCAN-bus.
42
Convenience and Safety Systems
For detailed information onprogramming, please refer to theoperating instructions in thevehicle owner’s manual.
Accessing Programming Menus
The following procedure allows access tothe new Jetta’s convenience options usingthe multi-function indicator (MFI) switchlever.
To access the convenience menu:1. Press and hold the Up/Down Toggle
Switch in the “UP” or “DOWN” positionfor two seconds.
2. Use the Up/Down Toggle Switch tohighlight “Setup” and then press theOK/Reset switch to select it.
3. Toggle to “Convenience” and then pressthe OK/reset switch to select it. Fromthere, adjust the convenience settings.
OK/Reset SwitchUp/DownToggle Switch
Multi-FunctionIndicator (MFI)Switch Lever
Select
Select
S873403_26S873403_25
S873403_24
43
Convenience and Safety Systems
Radios
RCD 300 Radio System (Base Radio)
The RCD 300 radio is a standard radiosystem. It has the following features:• Two or four loudspeaker channels (each
20 W)
• RDS FM/AM
• Display of stored stations and RDSnames
• MP3 compatible
• FM-2 tuner
• Control by multi-function steering wheel(MFS) and multi-function display (MFD)
• Integrated single CD drive
• Controls for external 6 disc CD changer
• Telephone control (hands-free operation)
• GALA
• Self-diagnosis including speakerdiagnosis
• Transport Mode
S873403_30
Radio RCD 500 (Premium 7)
The top radio for the new Jetta is the RCD500 with the following functions:• Four speaker channels (20 W each)
• RDS FM/AM Radio (AM without LW)
• Display of stored stations with RDSnames
• MP3 compatible
• FM 2 diversity tuner
• Operation through multi-functionsteering wheel and multi-functiondisplay
• Integrated 6 disc CD changer
• Controls for external 6 disc CD changer
• GALA
• Model-specific sound adjustment
• SAT Optional Satellite Radio
• Self-diagnosis including speakerdiagnosis
• Transport mode
• Optional external sound amplifier
S873403_27
44
Convenience and Safety Systems
MFD 2 Radio Navigation System
(Delayed Introduction)
A radio system with an integratednavigation system will be available for the2006 model year. Features include:• Multi-color display (MCD)
• DVD-based system
• Four speaker channels (20 W each)
• RDS FM/AM Radio (AM without LW)
• Display of stored stations with RDSnames
• External diversity tuner
• Operation via multi-function steeringwheel and multi-function display
• Controls for external 6 disc CD changer
• GALA
• Self-diagnosis including speakerdiagnosis
S873403_32
45
Convenience and Safety Systems
Antennas
Jettas are equipped with different antennasystems depending on the optionsselected. Rear window antennas are notserviceable.
Radio RCD 300/RCD 500
The RCD 300 and RCD 500 radios areequipped with an internal diversity tuner(automatic selection between antennas).An external diversity tuner is not required.
Two rear window antennas are connectedto the radio. The radio automatically selectsthe antenna with the strongest signal.
S319_022
FM Circuit (-)
AntennaAmplifier
(ImpedanceTransformer)
AM Circuit
FM Circuit (+)
+ -
46
Convenience and Safety Systems
MFD 2 Radio Navigation System
The MFD 2 radio navigation system doesnot use an internal diversity tuner. The MFD2 uses an external tuner and two rearwindow antennas.
The MFD 2 radio navigation system uses ashark-fin type roof antenna.
AntennaSignal(Coax)
S873403_023
S319_023
FM Circuit (-)
AntennaAmplifier
(ImpedanceTransformer)
AM Circuit
FM Circuit (+)
+ -
ControlLine (Coax)
ExternalDiversity Tuner
47
Convenience and Safety Systems
Multi-Function Steering Wheel
System Overview
The multi-function steering wheelcommunicates with the steering columnswitch module through a LIN bus.
Communication from the steering columnelectronic systems control module to theon board diagnostic interface is through theCAN-bus, which passes these signals tothe desired control modules.
The multi-function steering wheel becomesactive when the ignition is turned ON.
E221
Key
E221 Control Module in Steering WheelJ285 Instrument Cluster Control ModuleJ412 Operating Electronics and Telephone Control
ModuleJ503 Radio/Navigation Display Control ModuleJ527 Steering Column Electronic Systems Control
ModuleJ533 Data Bus On Board Diagnostic InterfaceR RadioR66 Telephone/Navigation System (GPS)/
Auxiliary Heater Antenna
J285
J412
15
30
J527
J533
J503R
S319_019
48
Convenience and Safety Systems
Multi-Function Buttons
Button illumination is controlled by terminal58d.
Only one code is used to communicateinformation from the buttons, through thesteering column electronic systems controlmodule, to the CAN-bus. This means thatbuttons can only function one at a time.
If a telephone is not installed, thetelephone buttons are non-functional.
If after several minutes the system detectsa sticking button it will disable the function.All other buttons will remain functional.
S319_025
Switch to basic telephone menu,various sub functions, such ascaller list, make connection
Accept call, make call
DescriptionButton Symbol
Next track/start station search
Previous track/start stationsearch
Volume up
Volume down
Switch (mode) between FM/AMaudio sources, CD-changer and CD (radio)
Mute selection of audio sources
End call
+
–
49
Convenience and Safety Systems
Headliner Printed Circuits
An increase in headroom has beenachieved by using printed circuits. Routingof wire is eliminated because the printedcircuit wiring is attached to the headliner.Additional wire clips in the roof area are nolonger required.
Description
The printed circuit wiring connects the rearinterior light, the sun visor switch and thevanity mirror lighting to the vehicleelectrical system control module.
The central coupling point connection islocated on the front cross member, abovethe front interior light.
Headliner printed circuits are notserviceable. The printed circuitmust be replaced as a completeunit. Always refer to the latestservice repair information.
Front InteriorLight
S319_073
Rear Interior Light
Sun Visor SwitchConnection
Vanity MirrorLight Connection
Central CouplingPoint Connection
50
Convenience and Safety Systems
S319_055
Tamper-Proof Guard
A tamper-proof fastener protects the newJetta Motronic engine control module fromtampering and unauthorized data access.
This tamper-proof fastener secures aprotective cover over the main harnessconnector.
52
Knowledge Assessment
An on-line Knowledge Assessment (exam) is available for this Self-Study Program.
The Knowledge Assessment may or may not be required for Certification.
You can find this Knowledge Assessment at:
www.vwwebsource.com
From the vwwebsource.com Homepage:
– Click on the Certification tab
– Type the course number in the Search box
– Click “Go!” and wait until the screen refreshes
– Click “Start” to begin the Assessment
For Assistance, please call:
Certification Program Headquarters
1 – 877 – CU4 – CERT
(1 – 877 – 284 – 2378)
(8:00 a.m. to 8:00 p.m. EST)
Or, E-Mail:
Comments@VWCertification.com