Manual reparacion Jeep Compass - Patriot Limited 2007-2009_Cruise control

2009 ACCESSORIES & EQUIPMENT

Speed Control - Service Information - Compass & Patriot

DESCRIPTION

DESCRIPTION

The speed control system is fully and electronically controlled by the Powertrain Control Module (PCM). A cable and a vacuum controlled servo are not used. This is a servo-less system. The switch is labeled: ON/OFF, RES/ACCEL, SET, COAST, and CANCEL.

The system is designed to operate at speeds above 25 mph (40 km/h).

OPERATION

OPERATION

When speed control is activated by depressing the ON switch, the PCM allows a set speed to be stored in RAM for speed control. To store a set speed, depress and release the SET switch while the vehicle is moving at a speed between 25 and 85 mph (40 km/h and 137 km/h). In order for the speed control to engage, the brakes cannot be applied, nor can the gear selector be indicating the transmission is in Park or Neutral (ATX) or 1st/2nd gear (MTX). The speed control can be disengaged manually by:

Stepping on the brake pedal Depressing the OFF switch Depressing the CANCEL switch. Depressing the clutch pedal Operating in 1st or 2nd gear (autostick, if equipped)

For added safety, the speed control system is programmed to disengage for any of the following conditions:

An indication of Park or Neutral A rapid increase RPM (indicates that the clutch has been disengaged) Excessive engine RPM (indicates that the transmission may be in a low gear) The speed signal increases at a rate of 10 mph (16 km/h) per second (indicates that the co-efficient of friction between the road surface and tires is extremely low)

WARNING: the use of speed control is not recommended when driving conditions do not permit maintaining a constant speed, such as in heavy traffic or on roads that are winding, icy, snow covered, or slippery.

NOTE: Turning the system off by depressing the OFF switch or turning off the ignition switch will erase the set speed stored in the PCM.

2009 Jeep Patriot Limited2009 ACCESSORIES & EQUIPMENT Speed Control - Service Information - Compass & Patriot


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Saturday, September 08, 2012 11:39:12 AM © 2006 Mitchell Repair Information Company, LLC.

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Saturday, September 08, 2012 11:39:17 AM Page 1 © 2006 Mitchell Repair Information Company, LLC.

The speed signal decreases at a rate of 10 mph (16 km/h) per second (indicates that the vehicle may have decelerated at an extremely high rate) If the actual speed is greater than 20 mph (32 km/h) over the set speed. Autostick shifts into 1st or 2nd gear (autostick, if equipped)

Once the speed control has been disengaged, depressing the RESUME switch when speed is greater than 20 mph (32 km/h) allows the vehicle to resume control to the target speed that was stored in the PCM.

While the speed control is engaged, the driver can increase the vehicle speed by depressing the ACCEL switch. The new target speed is stored in the PCM when the ACCEL switch is released. The PCM also has a tap-up feature in which target speed increases by 2 mph (3 km/h) for each momentary switch activation of the ACCEL switch. The PCM also provides a means to decelerate to a new lower target speed without disengaging speed control. Depress and hold the COAST switch until the desired speed is reached, then release the switch.

The PCM also has a Tap Down feature in which target speed decreases at 1 mph (1.5 km/h) for each momentary switch activation of the coast switch.

DIAGNOSIS AND TESTING

CHECKING FOR DIAGNOSTIC CODES

When trying to verify a speed control system electronic malfunction: Connect a scan tool if available to the data link connector. The connector is located near the steering column, and at lower edge of the dash panel.

A speed control malfunction may occur without a diagnostic code being indicated. For further information and usage of the scan tool and a more complete list of Diagnostic Trouble Code and No Trouble Codes, refer to the appropriate ELECTRICAL DIAGNOSTICS article.

ROAD TEST

Perform a vehicle road test to verify reports of speed control system malfunction. The road test should include attention to the speedometer. Speedometer operation should be smooth and without flutter at all speeds.

Flutter in the speedometer indicates a problem which might cause surging in the speed control system. The cause of any speedometer problems should be corrected before proceeding. Refer to the Instrument Cluster for speedometer diagnosis.

If a road test verifies an inoperative system, and the speedometer operates properly, check for:

A Diagnostic Trouble Code (DTC). If a DTC exists, conduct tests per the Powertrain Diagnostic Procedures. A misadjusted brake (stop) lamp switch. This could also cause an intermittent problem. Conduct electrical test at PCM.

CAUTION: When test probing for voltage or continuity at electrical connectors, care


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SWITCH, SPEED CONTROL

REMOVAL

REMOVAL

Fig. 1: Driver Airbag Remove/InstallCourtesy of CHRYSLER LLC

1. Disconnect and isolate the negative battery cable before beginning steering wheel removal. Allow the front airbag system capacitor to discharge for two minutes before removing the steering wheel or any front airbag system component.

2. Turn off ignition. 3. Remove the driver's side airbag. Refer to Restraints/AIR BAG, Driver - Removal .

must be taken not to damage connector, terminals or seals. If these components are damaged, intermittent or complete system failure may occur.

WARNING: Disconnect and isolate the battery negative (ground) cable before beginning steering wheel removal or installation. Allow the front airbag system capacitor to discharge for two minutes before removing the steering wheel or any front airbag system component. This will disable the front airbag system. Failure to disconnect the battery could result in accidental front airbag module deployment and possible personal injury.Do not place a non-deployed airbag face down on a hard surface as the airbag will propel into the air if accidentally deployed, and could result in serious or fatal injury.


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Fig. 2: Horn SwitchCourtesy of CHRYSLER LLC

4. Disconnect electrical connector (1) from horn switch (2). 5. Remove mounting screws (3) and horn switch (2) from steering wheel.

Fig. 3: Speed SwitchCourtesy of CHRYSLER LLC

6. Disconnect electrical connector (1) from speed control switch (3). 7. Remove screws (4) from speed control switch (3). 8. Remove speed control switch (3) from steering wheel.

INSTALLATION


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INSTALLATION

Fig. 4: Speed SwitchCourtesy of CHRYSLER LLC

1. Install speed control switch (3) onto the locating pin (2) in the steering wheel. Make sure rubber seal is in place around switch.

2. Install speed control switch mounting screws (4) and tighten screws to 1.6 N.m (15 ins. lbs.). 3. Connect electrical connector (1) to speed control switch (3).

Fig. 5: Horn SwitchCourtesy of CHRYSLER LLC

4. Install horn switch (2) to steering wheel. 5. Install horn switch mounting screws (3) and tighten screws to 8 N.m (71 ins. lbs.).


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Fig. 6: Driver Airbag Remove/InstallCourtesy of CHRYSLER LLC

6. Install driver's side airbag. Refer to Restraints/AIR BAG, Driver - Installation . 7. Connect negative battery cable, tighten nut to 5 N.m (45 in. lbs.). 8. Verify vehicle and system operation.


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Manual reparacion Jeep Compass - Patriot Limited 2007-2009_Cruise control

Automotive

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