Diagnostic Test

READ AND RECORD DTCS AND ENVIRONMENTAL DATA - ERASE DTCS AND CHECK FOR DTC TO RETURN
1. Verify the Park Assist Sensor is not damaged and properly connected before proceeding with this diagnostic procedure.
2. With the scan tool, read DTCs in all Electronic Control Units (ECUs) and record on the repair order.
3. With the scan tool, run a vehicle Scan Report, or record the Environmental Data related to the DTCs.
4. With the scan tool, erase all DTCs.
5. Turn the ignition off for a minimum of 10.0 seconds.
6. Turn the ignition on.
7. Using the recorded Environmental Data and the When Monitored Conditions above, operate the vehicle in the conditions that set the DTC.
8. With the scan tool, read PAM DTCs.
  Did the DTC return?
  
  Yes
  - Go to 2.
  No
  - Perform the appropriate INTERMITTENT CONDITION diagnostic procedure. Refer to TESTING FOR AN INTERMITTENT CONDITION .
INSPECT SENSOR
1. Inspect exterior of bumper for snow, ice or dirt covering sensor.
2. Inspect sensor connections for snow, ice or dirt.
3. Inspect for a missing or improperly mounted decoupling ring.
4. Inspect for correct installation.
  Were any of the conditions found?
  
  Yes
  - Go To 3
  No
  - Go To 4
CLEAN OR REPAIR AND RETEST FOR DTCS
1. Turn the ignition off.
2. Clean or repair park assist sensor.
3. Turn the ignition on.
4. With the scan tool, erase all DTCs.
5. Turn the ignition off for a minimum of 10.0 seconds.
6. Turn the ignition on.
7. Using the When Monitored and Set Conditions above and recorded data, operate the vehicle in the conditions that set the DTC.
8. With the scan tool, read PAM DTCs.
  Did the DTC return?
  
  Yes
  - Go To 4
  No
  - Cleaning or repairing park assist sensor eliminated the fault.
  - Perform the BODY VERIFICATION TEST. Refer to BODY VERIFICATION TEST .
CLEAN AND RETEST FOR DTCS
1. Turn the ignition off.
2. Remove park assist sensor.
3. Clean park assist sensor.
4. Reinstall the park assist sensor.
5. Turn the ignition on.
6. With the scan tool, erase all DTCs.
7. Turn the ignition off for a minimum of 10.0 seconds.
8. Turn the ignition on.
9. Using the When Monitored and Set Conditions above and recorded data, operate the vehicle in the conditions that set the DTC.
10. With the scan tool, read PAM DTCs.
  Did the DTC return?
  
  Yes
  - Go To 5
  No
  - Cleaning park assist sensor eliminated the fault.
  - Perform the BODY VERIFICATION TEST. Refer to BODY VERIFICATION TEST .
READ AND RECORD DTCS AND ENVIRONMENTAL DATA - ERASE DTCS AND CHECK FOR DTC TO RETURN
1. With the scan tool, read DTCs in all ECUs and record on the repair order.
2. With the scan tool, run a vehicle Scan Report, or record the Environmental Data related to the DTCs.
3. With the scan tool, erase all DTCs.
4. Turn the ignition off for a minimum of 10.0 seconds.
5. Turn the ignition on.
6. Using the recorded Environmental Data and the When Monitored Conditions above, operate the vehicle in the conditions that set the DTC.
7. With the scan tool, read PAM DTCs.
  Did the DTC return?
  
  Yes
  - Replace the Park Assist Sensor in accordance with the Service Information. Refer to SENSOR, PARK ASSIST, REMOVAL .
  - Perform the BODY VERIFICATION TEST. Refer to BODY VERIFICATION TEST .
  No
  - Cleaning park assist sensor eliminated the fault.
  - Perform the BODY VERIFICATION TEST. Refer to BODY VERIFICATION TEST .