Diagnostic Test

WARNING: This page is about a different car, the 2017 Jeep Cherokee. However, it is still accessible from the selected car via links, so may be relevant.

CHECK FOR AN ACTIVE DTC
1. Turn the ignition on.
2. With the scan tool, read Adaptive Cruise Control (ACC) DTCs and record on the repair order.
3. With the scan tool, erase ACC DTCs.
4. Turn the ignition off.
5. Start the engine.
6. With the scan tool, read ACC Module DTCs.
  Does the DTC return?
  
  Yes
  - Go To 2
  No
  - Go To 3
FORWARD FACING CAMERA
1. Verify the Forward Facing Camera is mounted properly. Refer to MODULE, FORWARD FACING CAMERA (FFCM), INSTALLATION .
2. With the scan tool, perform the Forward Facing Camera Calibration Procedure in accordance with the Service Information. Refer to MODULE, FORWARD FACING CAMERA (FFCM), MODULE PROGRAMMING .
3. With the scan tool, erase ACC DTCs.
4. Turn the ignition off.
5. Start the engine.
6. With the scan tool, read ACC Module DTCs and record on the repair order.
  Does the DTC return?
  
  Yes
  - Replace and program the Forward Facing Camera Module (FFCM) in accordance with the Service Information. Refer to MODULE, FORWARD FACING CAMERA (FFCM), REMOVAL .
  - Perform the ADAPTIVE CRUISE CONTROL VERIFICATION TEST. Refer to STANDARD PROCEDURE .
    NOTE:
    If this DTC resets after replacement of the Forward Facing Camera Module and no other problems are found, replace and program the Adaptive Cruise Control (ACC) Module in accordance with the Service Information.
    
    Refer to MODULE, ADAPTIVE CRUISE CONTROL (ACCM), REMOVAL .
  No
  - Test Complete.
  - Perform the ADAPTIVE CRUISE CONTROL VERIFICATION TEST. Refer to STANDARD PROCEDURE .
CHECK THE WIRING AND CONNECTORS
1. The conditions necessary to set the DTC are not present at this time.
2. Using the schematics as a guide, inspect the wiring and connectors specific to this Module and the Forward Facing Camera. Wiggle the wiring and connectors while checking for shorted and open circuits.
3. Check all related splices and connectors for signs of water intrusion, corrosion, pushed out or bent terminals, and correct pin tension.
4. Check Service Bulletins for any possible causes that may apply.
  Were there any problems found?
  
  Yes
  - Repair as necessary.
  - Perform the ADAPTIVE CRUISE CONTROL VERIFICATION TEST. Refer to STANDARD PROCEDURE .
  No
  - Test complete.