Diagnostic Test

CHECK FOR AN ACTIVE DTC
1. Turn the ignition on.
2. With the scan tool, create a Vehicle Scan Report and attach it to the repair order.
3. With the scan tool, read the Park Assist Module (PAM) DTCs.
  Is the DTC active?
  
  Yes
  - Go to 2.
  No
  - Perform the TESTING FOR AN INTERMITTENT CONDITION procedure. Refer to TESTING FOR AN INTERMITTENT CONDITION .
CHECK EXTERNAL FRONT RIGHT SENSOR FOR AN OBSTRUCTION
1. Check that the external front right sensor is free of any non standard accessories.
2. Check that the external front right sensor is free of any ice or dirt.
  Were any obstructions found?
  
  Yes
  - Go to 3.
  No
  - Go to 4.
CLEAR AREA AND CHECK IF DTC RETURNS
1. Clear area of any obstructions.
2. Turn the ignition on.
3. With the scan tool, clear DTCs.
4. With the scan tool, read the PAM DTCs.
  Is the DTC active?
  
  Yes
  - Go to 4.
  No
  - Test complete.
CHECK EXTERNAL FRONT RIGHT SENSOR FOR PROPER FIT OR DAMAGE
1. Check that the external front right sensor is installed properly and no damage to mounting components or O-ring.
  Is the External front right sensor installed properly with no damaged components?
  
  Yes
  - Go to 5.
  No
  - Repair or replace the external front right parking sensor or mounting hardware. Refer to SENSOR, PARK ASSIST, REMOVAL AND INSTALLATION .
CHECK RELATED HARNESS CONNECTIONS
1. Disconnect all Park Assist Sensor harness connectors.
2. Disconnect all related in-line harness connections (if equipped).
3. Disconnect the related component harness connectors.
4. Inspect harness connectors, component connectors, and all male and female terminals for the following conditions:
  - Proper connector installation.
  - Damaged connector locks.
  - Corrosion.
  - Other signs of water intrusion.
  - Weather seal damage (if equipped).
  - Bent terminals.
  - Overheating due to a poor connection (terminal may be discolored due to excessive current draw).
  - Terminals that have been pushed back into the connector cavity.
  - Perform a terminal drag test on each connector terminal to verify proper terminal tension.
  Repair any conditions that are found.
5. Reconnect all Park Assist Sensor harness connectors. Be certain that all harness connectors are fully seated and the connector locks are fully engaged.
6. Reconnect all in-line harness connectors (if equipped). Be certain that all connectors are fully seated and the connector locks are fully engaged.
7. Reconnect all related component harness connectors. Be certain that all connectors are fully seated and the connector locks are fully engaged.
8. With the scan tool, erase DTCs.
9. Using the recorded Environmental Data, along with the When Monitored and Set Conditions above, operate the vehicle in the conditions that set the DTC.
10. With the scan tool, read PAM Module DTCs.
  Did the DTC return?
  
  Yes
  - Replace the Park Assist Sensor in accordance with the Service information. Refer to SENSOR, PARK ASSIST, REMOVAL AND INSTALLATION .
  - Perform the Body VERIFICATION TEST. Refer to Refer to BODY VERIFICATION TEST .
  No
  - Perform the Body VERIFICATION TEST. Refer to Refer to BODY VERIFICATION TEST .
  - Test complete.