Overview
The adaptive cruise control system is controlled by the steering wheel mounted switches (ON/OFF, SET, CNCL, RES and GAP) that are integrated into the LH steering wheel switch.
The cruise control system maintains a selected vehicle speed between 29 kmh (18 mph) and the maximum limited vehicle speed and displays that speed in the IPC message center. When a MyKey® restricted key is in use and max speed limiter is turned on, vehicle speed is limited to 128.7 kmh (80 mph).
The vehicle maintains the selected speed until another slower vehicle is detected ahead in the same lane by the radar sensor unit inside the C-CM . The vehicle speed is adjusted automatically to maintain a preset distance gap. The vehicle maintains the distance gap and the brakes automatically apply to slow the vehicle to maintain the gap to the vehicle ahead.
The cruise control system is controlled by the PCM.
Scheme 19
Adaptive Cruise Control (ACC) Operation
Note. For a complete illustration of the adaptive cruise control indicators and graphic displays refer to the Owner's Literature.
The adaptive cruise control system functions much like the standard cruise control system. The adaptive cruise control system automatically adjusts the vehicle speed to maintain a set gap distance from the front of the vehicle and the vehicle in the same path of travel. When the adaptive cruise control system is on and is following a vehicle ahead or a vehicle enters the same driving lane, a follow vehicle graphic is displayed in the message center.
The adaptive cruise control system does not function if the vehicle speed is below 29 kmh (18 mph). As the vehicle slows down during automatic braking, the adaptive cruise control system discontinues braking at 29 kmh (18 mph). At that speed, an audible alarm sounds and the automatic braking from the ABS module is released. The driver must take over the vehicle braking control.
The cruise control deactivator switch (which is integral to the stoplamp switch) is an additional safety feature. When the brake pedal is pressed, an electrical signal is sent from the stoplamp switch to the PCM deactivating the cruise control system. Under increased brake pedal effort, the cruise control deactivator switch opens and removes the ground signal from the PCM input circuit, releasing the throttle immediately deactivating the system.
The ABS module monitors the yaw rate signal from the RCM and compares it to the wheel speed and steering wheel angle signals. If the ABS module determines the yaw rate is invalid, the ABS module disables the adaptive cruise control. The message center displays the message COLLISION WARNING MALFUNCTION and/or ADAPTIVE CRUISE MALFUNCTION.
The ABS module estimates brake temperature by monitoring applied brake pressure over a period of time and sends a message to the C-CM when the estimated temperature is above a given threshold. An alarm sounds and the adaptive cruise control system is deactivated until the estimated brake temperature within the ABS module returns to cooler operating conditions. This condition can happen in a hilly or mountainous driving terrain.
Cruise Control Deactivation Event Parameter Identifications (PIDs)
Note. When recording deactivation event PIDs , turn the cruise control OFF immediately after the deactivation event occurs to prevent recording additional deactivation events which do not apply to the fault present.
Note. Cruise control deactivation PIDs are not available on the 2.0L GTDI engine.
The PCM has PIDs available, through the powertrain DataLogger, that indicate the event that caused the last cruise control deactivation. When the cruise control is turned ON, all current deactivation (or non-activation) conditions are recorded. When the cruise control is turned OFF, event recording stops. The recorded events are stored until the ignition is turned OFF.
The PCM has 24 cruise control deactivation event PIDs , identified as CRUISEOFF_00 through 24. The event PIDs should be read when deactivation or non-activation exists.
Normal Operation and Fault Conditions
REFER to Adaptive Cruise Control (ACC) Operation .
REFER to Brake Switch .
| DTC | Description | Fault Trigger Conditions |
|---|---|---|
| P0504 | Brake Switch A / B Correlation | A DTC that sets when the PCM does not sense the correct sequence of the brake pedal input signal from both the cruise control deactivator and stoplamp switches when the brake pedal is pressed and released. |
| P0572 | Brake Switch A Circuit Low | A DTC that sets when the PCM detects an open in the stoplamp switch signal. The PCM monitors the vehicle speed, the engine speed, the engine torque and the stoplamp input during start and stop driving cycles. If the stoplamp switch input to the PCM is always off during start and stop driving cycles, this DTC sets in continuous memory. |
| P0573 | Brake Switch A Circuit High | A DTC that sets when the PCM detects a short to voltage on the stoplamp switch signal. The PCM monitors the vehicle speed, the engine speed, the engine torque and the stoplamp switch input during start and stop driving cycles. If the stoplamp lamp switch input to the PCM is always on during start and stop driving cycles, this DTC sets in continuous memory. |
| P1703 | Brake Switch Out Of Self -Test Range | A DTC that sets in the PCM during the self-test, when the stoplamp switch input signal is high or does not cycle high and low. |
DTC FAULT TRIGGER CONDITIONS
Scheme 20
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Scheme 26
- CHECK THE OPERATION OF THE STOPLAMPS Ignition ON. Operate the stoplamps. Do the stoplamps and high mounted stoplamp operate correctly? Yes: GO to 2 . No: REFER to «SYMPTOM CHART: STOPLAMPS»(ref-517594-S38208635202012121200000) .
- CHECK THE STOPLAMP SWITCH (BOO1) AND CRUISE CONTROL DEACTIVATOR SWITCH (BOO2) PIDs Using a scan tool, view Powertrain - Cruise Control PIDs . Monitor the powertrain PIDs BOO1 (stoplamp switch) and BOO2 (cruise control deactivator switch) while applying and releasing the brake pedal. Brake Pedal Position BOO1 PID BOO2 PID Released Off Off Applied lightly On Off Applied firmly On On Do the PID values agree with the brake pedal position? Yes: GO to 8 . No: For an incorrect BOO1 PID value, GO to 3 . For an incorrect BOO2 PID value, GO to 4 .
- CHECK THE STOPLAMP SWITCH CIRCUIT Ignition OFF. Disconnect: PCM C175B (3.5L). Disconnect: PCM C1381B (2.0L GTDI). Ignition ON. For 3.5L, while applying the brake pedal, measure: PCM Ground C175B Ground Pin Circuit Measurement / Action Pin Circuit 13 CCB08 (VT/WH) - Ground For 2.0L GTDI, while applying the brake pedal, measure: PCM Ground C1381B Ground Pin Circuit Measurement / Action Pin Circuit 30 CCB08 (VT/WH) - Ground Is the voltage greater than 11 volts? Yes: GO to 8 . No: REPAIR the circuit.
- CHECK THE CRUISE CONTROL DEACTIVATOR SWITCH FOR CORRECT OPERATION Ignition OFF. Disconnect: PCM C175B (3.5L). Disconnect: PCM C1381B (2.0L GTDI). For 3.5L, while firmly applying and releasing the brake pedal, measure: PCM Ground C175B Ground Pin Circuit Measurement / Action Pin Circuit 46 CES09 (VT/OG) - Ground For 2.0L GTDI, while firmly applying and releasing the brake pedal, measure: PCM Ground C1381B Ground Pin Circuit Measurement / Action Pin Circuit 16 CES09 (VT/OG) - Ground Is the resistance less than 3 ohms with the brake pedal released, and greater than 10, 000 ohms with the brake pedal firmly applied? Yes: GO to 8 . No: GO to 5 .
- CHECK THE CRUISE CONTROL DEACTIVATOR SWITCH GROUND CIRCUIT FOR AN OPEN Disconnect: Stoplamp Switch. Measure: Stoplamp Switch Ground C278 Ground Pin Circuit Measurement / Action Pin Circuit 3 GD113 (BK/YE) - Ground Is the resistance less than 3 ohms? Yes: GO to 6 . No: REPAIR the circuit.
- CHECK THE CRUISE CONTROL DEACTIVATOR SWITCH SIGNAL CIRCUIT FOR A SHORT TO GROUND Measure: Stoplamp Switch Ground C278 Ground Pin Circuit Measurement / Action Pin Circuit 2 CES09 (VT/OG) - Ground Is the resistance greater than 10, 000 ohms? Yes: GO to 7 . No: REPAIR the circuit.
- CHECK THE CRUISE CONTROL DEACTIVATOR SWITCH SIGNAL CIRCUIT FOR AN OPEN Connect a fused jumper wire: Stoplamp Switch Stoplamp Switch C278 C278 Pin Circuit Measurement / Action Pin Circuit 3 GD113 (BK/YE) 2 CES09 (VT/OG) For 3.5L, measure: PCM Ground C175B Ground Pin Circuit Measurement / Action Pin Circuit 46 CES09 (VT/OG) - Ground For 2.0L GTDI, measure: PCM Ground C1381B Ground Pin Circuit Measurement / Action Pin Circuit 16 CES09 (VT/OG) - Ground Is the resistance less than 3 ohms? Yes: INSTALL a new stoplamp switch. REFER to «STOPLAMP SWITCH»(ref-517594-S30389183162012121200000) . No: REPAIR the circuit.
- CHECK FOR CORRECT PCM OPERATION Disconnect and inspect all the PCM connectors. Repair: corrosion (install new connector or terminals - clean module pins) damaged pins - install new terminals/pins pushed-out pins - install new pins as necessary Reconnect the PCM connectors. Make sure they seat and latch correctly. Operate the system and determine if the concern is still present. Is the concern still present? Yes: CHECK OASIS for any applicable TSBs . If a TSB exists for this concern, DISCONTINUE this test and FOLLOW TSB instructions. If no TSBs address this concern, INSTALL a new PCM. REFER to «POWERTRAIN CONTROL MODULE (PCM) - 2.0L GTDI»(ref-517566-S00665914912012121200000) , or «POWERTRAIN CONTROL MODULE (PCM) - 3.5L TI-VCT»(ref-517566-S09666002682012121200000) . No: The system is operating correctly at this time. The concern may have been caused by module connections. ADDRESS the root cause of any connector or pin issues.
REFER to Steering Wheel Switch Function and REFER to Steering Wheel Switches .
| DTC | Description | Fault Trigger Conditions |
|---|---|---|
| B137F:09 | Steering Wheel Left Switch Pack: Component Failure | A continuous and on-demand DTC that sets when one or more of the cruise control switches are stuck. |
| B137F:11 | Steering Wheel Left Switch Pack: Circuit Short To Ground | A continuous and on-demand DTC that sets when the cruise control switch circuits are shorted to ground. |
| B137F:17 | Steering Wheel Left Switch Pack: Circuit Voltage Above Threshold | A continuous and on-demand DTC that sets when the cruise control switch circuits are shorted to voltage. |
DTC FAULT TRIGGER CONDITIONS
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- CHECK THE CRUISE CONTROL SWITCH Ignition ON. Using a scan tool, view the SCCM PIDs . Press each cruise control switch while monitoring the cruise control switch PID (SCCS). Cruise Control Switch SCCS PID Value - None pressed RES/CNCL RESUME/CANCEL ON/OFF On/Off SET (pressed up) SET/+ SET (pressed down) SET/- GAP (pressed up) GAP- GAP (pressed down) GAP+ Does the PID value agree with the switch position? Yes: GO to 5 . No: If only one switch value does not display the correct PID value, INSTALL a new LH steering wheel switch. REFER to «STEERING WHEEL SWITCH»(ref-517559-S21870911502012121200000) . Otherwise, GO to 2 .
- CHECK FOR VOLTAGE TO THE CRUISE CONTROL SWITCHES Ignition OFF. Remove the driver air bag module. REFER to «DRIVER AIR BAG MODULE»(ref-517622-S25462226712012121200000) . Disconnect LH Steering Wheel Controls. Ignition ON. Measure: LH Steering Wheel Switch LH Steering Wheel Switch C2998 C2998 Pin Circuit Measurement / Action Pin Circuit 4 - 1 - 6 - 1 - 8 - 1 - Is the voltage approximately 5 volts? Yes: INSTALL a new LH steering wheel switch. REFER to «STEERING WHEEL SWITCH»(ref-517559-S21870911502012121200000) . No: GO to 3 .
- CHECK FOR VOLTAGE TO THE CLOCKSPRING Ignition OFF. Disconnect Clockspring C218B. Ignition ON. Measure: Clockspring Clockspring C218B (Component Side) C218B (Component Side) Pin Circuit Measurement / Action Pin Circuit 6 - 8 - 7 - 8 - 15 - 8 - Is the voltage approximately 5 volts? Yes: INSTALL a new steering wheel. REFER to «STEERING WHEEL»(ref-517558-S29725753182012121200000) . No: GO to 4 .
- CHECK FOR VOLTAGE AT THE SCCM Ignition OFF. Remove the clockspring. REFER to «CLOCKSPRING»(ref-517622-S11035099822012121200000) . Ignition ON. Measure: SCCM SCCM C2414D (Component Side) C2414D (Component Side) Pin Circuit Measurement / Action Pin Circuit 5 - 9 - 7 - 9 - 8 - 9 - Is the voltage approximately 5 volts? Yes: INSTALL a new clockspring. REFER to «CLOCKSPRING»(ref-517622-S11035099822012121200000) . No: GO to 5 .
- CHECK FOR CORRECT SCCM OPERATION Disconnect all the SCCM connectors. Repair: corrosion (install new connector or terminals - clean module pins) damaged or bent pins - install new terminals/pins pushed-out pins - install new pins as necessary Reconnect all the SCCM connectors and make sure they are seated correctly. Connect all disconnected connectors. Install the driver air bag module. REFER to «DRIVER AIR BAG MODULE»(ref-517622-S25462226712012121200000) . Operate the system and determine if the concern is still present. Is the concern still present? Yes: CHECK OASIS for any applicable TSBs . If a TSB exists for this concern, DISCONTINUE this test and FOLLOW TSB instructions. If no TSBs address this concern, INSTALL a new SCCM. REFER to «STEERING COLUMN CONTROL MODULE (SCCM)»(ref-517559-S19442282422012121200000) . No: The system is operating correctly at this time. The concern may have been caused by module connections. ADDRESS the root cause of any connector or pin issues.
| DTC | Description | Fault Trigger Conditions |
|---|---|---|
| C1A67:96 | Forward Looking Sensor: Component Internal Failure | Sets when the C-CM detects an internal failure or invalid radar data with the radar sensor. |
DTC FAULT TRIGGER CONDITIONS
| DTC | Description | Fault Trigger Conditions |
|---|---|---|
| C1A67:54 | Forward Looking Sensor: Missing Calibration | Set by the C-CM as a continuous memory and on-demand DTC if the C-CM detects a misalignment of the radar due to the alignment angle being out of range. |
| C1A67:76 | Forward Looking Sensor: Wrong Mounting Position | Set by the C-CM as a continuous memory and on-demand DTC if the C-CM detects a misalignment of the radar due to the vertical alignment angle being out of range. |
DTC FAULT TRIGGER CONDITIONS
| DTC | Description | Fault Trigger Conditions |
|---|---|---|
| C1A67:97 | Forward Looking Sensor: Component Or System Operation Obstructed Or Blocked | Set by the C-CM as a continuous memory and on-demand DTC if the C-CM detects an obstruction or if the sensor is blocked. This DTC may also set when the C-CM does not see a vehicle or object on the road for an extended period. |
DTC FAULT TRIGGER CONDITIONS
| DTC | Description | Fault Trigger Conditions |
|---|---|---|
| U0100:00 | Lost Communication With ECM/PCM "A": No Sub Type Information | Sets in continuous memory if data messages received from the PCM over the HS-CAN to the C-CM are missing for more than 5 seconds. |
DTC FAULT TRIGGER CONDITIONS
| DTC | Description | Fault Trigger Conditions |
|---|---|---|
| U0121:00 | Lost Communication With Anti-Lock Brake System (ABS) Control Module: No Sub Type Information | Sets in the C-CM if data messages received from the ABS module over the HS-CAN are missing. |
| U0129 | Lost Communication With Brake System Control Module | Sets in the PCM if data messages received from the ABS module over the HS-CAN are missing. The adaptive cruise control is deactivated if it does not receive an active braking message from the ABS module. |
DTC FAULT TRIGGER CONDITIONS
| DTC | Description | Fault Trigger Conditions |
|---|---|---|
| U0123:00 | Lost Communication With Yaw Rate Sensor Module: No Sub Type Information | The yaw rate sensor is integral to the RCM. This DTC sets in the C-CM if yaw rate sensor data messages received from the RCM over the HS-CAN are missing. |
DTC FAULT TRIGGER CONDITIONS
| DTC | Description | Fault Trigger Conditions |
|---|---|---|
| U0155:00 | Lost Communication With Instrument Panel Cluster (IPC) Control Module: No Sub Type Information | Sets in the C-CM if data messages received from the IPC over the HS-CAN are missing. |
DTC FAULT TRIGGER CONDITIONS
| DTC | Description | Fault Trigger Conditions |
|---|---|---|
| U0158:00 | Lost Communication With Head Up Display: No Sub Type Information | Sets in the C-CM if data messages received from the HUD module over the HS-CAN are missing. |
DTC FAULT TRIGGER CONDITIONS
| DTC | Description | Fault Trigger Conditions |
|---|---|---|
| U0212:00 | Lost Communication With Steering Column Control Module: No Sub Type Information | Sets in the C-CM if data messages received from the SCCM over the HS-CAN are missing. |
DTC FAULT TRIGGER CONDITIONS
| DTC | Description | Fault Trigger Conditions |
|---|---|---|
| U0104 | Lost Communication With Cruise Control Module | Sets in the PCM if data messages received from the C-CM over the HS-CAN are missing for greater than 5 seconds. |
DTC FAULT TRIGGER CONDITIONS
REFER to Adaptive Cruise Control (ACC) Operation .
The C-CM can be aligned both vertically and horizontally. The vertical alignment is a manual procedure carried out by adjusting the C-CM adjustment screw. The horizontal alignment is a software procedure that is carried out internal to the C-CM .
| DTC | Description | Fault Trigger Conditions |
|---|---|---|
| U0300:55 | Internal Control Module Software Incompatibility: Not Configured | Set by the C-CM as a continuous memory and on-demand DTC if the C-CM detects a misalignment of a new module. The radar needs to be aligned due to the alignment angle being out of range. |
DTC FAULT TRIGGER CONDITIONS
| DTC | Description | Fault Trigger Conditions |
|---|---|---|
| U3000:63 | Control Module: Circuit/Component Protection Time-Out | Set by the C-CM as a continuous memory and on-demand DTC if the C-CM detects too many collision mitigation by braking activation requests. |
DTC FAULT TRIGGER CONDITIONS
| DTC | Description | Fault Trigger Conditions |
|---|---|---|
| U3000:66 | Control Module: Signal Has Too Many Transitions/Events | Set by the C-CM as a continuous memory and on-demand DTC if the C-CM detects a collision mitigation by braking fault or adaptive cruise control fault that occur repeatedly across multiple ignition cycles. |
DTC FAULT TRIGGER CONDITIONS
| DTC | Description | Fault Trigger Conditions |
|---|---|---|
| U3003:16 | Battery Voltage: Circuit Voltage Below Threshold | Set by the C-CM as a continuous memory and on-demand DTC if the C-CM detects low battery voltage below 9.5 volts for more than 500 ms. |
DTC FAULT TRIGGER CONDITIONS
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- RECHECK THE C-CM DTCs Ignition ON. Using a scan tool, perform the C-CM self-test. Clear the DTCs . Wait 10 seconds. Repeat the C-CM self-test. Is DTC U3003:16 still present? Yes: GO to 2 . No: The system is operating correctly at this time. The DTC may have been set due to a previous low battery voltage condition.
- CHECK FOR CHARGING SYSTEM DTCs IN THE PCM Using a scan tool, perform PCM Self-Test. Retrieve the continuous memory DTCs from the PCM. Are any charging system DTCs present in the PCM? Yes: REFER to «DTC CHART: POWERTRAIN CONTROL MODULE (PCM)»(ref-517566-S33453853772012121200000) . No: GO to 3 .
- CHECK THE BATTERY CONDITION AND STATE OF CHARGE Check the battery condition and verify the battery is fully charged. REFER to «DIAGNOSTIC ROUTINE A»(ref-517589-S25875569842012121200000) : Battery Condition Test. Is the battery OK and fully charged? Yes: GO to 4 . No: REFER to «BATTERY CHARGING»(ref-517589-S22690851332012121200000) .
- CHECK THE C-CM VOLTAGE SUPPLY Ignition OFF. Measure and record the voltage at the battery. Disconnect C-CM . Ignition ON. Measure: C-CM Ground C1582 Ground Pin Circuit Measurement / Action Pin Circuit 1 SBB79 (WH/RD) - Ground Is the voltage within 0.2 volt of the recorded battery voltage? Yes: GO to 5 . No: REPAIR the circuit for high resistance.
- CHECK THE C-CM GROUND CIRCUIT Ignition OFF. Measure: C-CM Ground C1582 Ground Pin Circuit Measurement / Action Pin Circuit 4 GD120 (BK/GN) - Ground Is the resistance less than 3 ohms? Yes: GO to 6 . No: REPAIR the circuit for high resistance.
- CHECK FOR CORRECT C-CM OPERATION Disconnect and inspect the C-CM connector. Repair: corrosion (install new connector or terminals - clean module pins) damaged pins - install new terminals/pins pushed-out pins - install new pins as necessary Reconnect the C-CM connector. Make sure it seats and latches correctly. Operate the system and determine if the concern is still present. Is the concern still present? Yes: CHECK OASIS for any applicable TSBs . If a TSB exists for this concern, DISCONTINUE this test and FOLLOW TSB instructions. If no TSBs address this concern, INSTALL a new C-CM . REFER to «Cruise Control Module (C-CM)»(ref-517603-S02009440042012121200000) No: The system is operating correctly at this time. The concern may have been caused by module connections. ADDRESS the root cause of any connector or pin issues.
| DTC | Description | Fault Trigger Conditions |
|---|---|---|
| U3003:17 | Battery Voltage: Circuit Voltage Above Threshold | Sets as a continuous memory and on-demand DTC if the C-CM detects high battery voltage above 16.5 volts for 500 ms. |
DTC FAULT TRIGGER CONDITIONS
| DTC | Description | Fault Trigger Conditions |
|---|---|---|
| U0140:00 | Lost Communication With Body Control Module: No Sub Type Information | Sets in the C-CM if data messages received from the BCM over the HS-CAN are missing. |
DTC FAULT TRIGGER CONDITIONS
| DTC | Description | Fault Trigger Conditions |
|---|---|---|
| P193D | Cruise Control Multi-Function Input Signal | Sets when the PCM is not receiving the HS-CAN signal from the SCCM for the cruise control switches. |
DTC FAULT TRIGGER CONDITIONS