Diagnostic Test

CHECK FOR AN ACTIVE DTC
1. Verify the Park Assist Sensor is properly connected and not damaged before proceeding with this diagnostic procedure.
2. With the scan tool, read ParkTronics (PTS) DTCs and record on the repair order.
3. With the scan tool, erase DTCs.
4. Using the recorded Environmental Data, along with the When Monitored and Set Conditions above, operate the vehicle in the conditions that set the DTC.
5. With the scan tool, read PTS DTCs.
  Did the DTC return?
  
  Yes
  - Go To 2
  No
  - Perform the TESTING FOR AN INTERMITTENT CONDITION procedure. Refer to TESTING FOR AN INTERMITTENT CONDITION .
(D702) PARK ASSIST SENSOR 1 SIGNAL CIRCUIT SHORTED TO BATTERY
1. Turn the ignition off.
2. Disconnect the Park Assist Sensor 1 harness connector at the sensor.
3. Turn the ignition on.
4. Measure the voltage on the (D702) Park Assist Sensor 1 Signal circuit at the PTS Module C3 harness connector.
  Is there battery voltage present?
  
  Yes
  - Repair the (D702) Park Assist Sensor 1 Signal circuit for a short to battery voltage.
  - Perform the BODY VERIFICATION TEST. Refer to BODY VERIFICATION TEST .
  No
  - Go To 3
(D702) PARK ASSIST SENSOR 1 SIGNAL CIRCUIT SHORTED TO THE (X702) FRONT PARK ASSIST SENSOR SUPPLY CIRCUIT
1. Turn the ignition off.
2. Disconnect the PTS Module C3 Harness connector.
3. Disconnect the Park Assist Sensor 1 harness connector at the sensor.
4. Check for continuity between the (D702) Park Assist Sensor 1 Signal circuit and the (X702) Front Park Assist Sensor Supply circuit at the PTS Module C3 harness connector.
  Is there continuity between the (D702) Park Assist Sensor 1 Signal circuit and the (X702) Front Park Assist Sensor Supply circuit?
  
  Yes
  - Repair the (D702) Park Assist Sensor 1 Signal circuit for a short to the (X702) Front Park Assist Sensor Supply circuit.
  - Perform the BODY VERIFICATION TEST. Refer to BODY VERIFICATION TEST .
  No
  - Go To 4
(X751) FRONT PARK ASSIST SENSOR GROUND CIRCUIT OPEN
1. Disconnect the PTS Module C3 harness connector.
2. Measure the resistance of the (X751) Front Park Assist Sensor Ground circuit between the Park Assist Sensor 1 harness connector and the PTS Module C3 harness connector.
  Is the resistance below 3.0 Ohms?
  
  Yes
  - Go To 5
  No
  - Repair the (X751) Front Park Assist Sensor Ground circuit for an open.
  - Perform the BODY VERIFICATION TEST. Refer to BODY VERIFICATION TEST .
SWAP FRONT PARK ASSIST SENSOR TO ANOTHER LOCATION
1. Reconnect the PTS Module C3 harness connector.
2. Swap the Front Park Assist Sensor 1 to another sensor location in the harness.
3. Reconnect all sensor connectors.
4. Turn the ignition on.
5. With the scan tool, erase DTCs.
6. Using the recorded Environmental Data, along with the When Monitored and Set Conditions above, operate the vehicle in the conditions that set the DTC.
7. With the scan tool, read DTCs.
  Did the DTC set to another sensor location?
  
  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 BODY VERIFICATION TEST .
  No
  - Go To 6
CHECK RELATED HARNESS CONNECTIONS
1. Disconnect all PTS Module 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 PTS 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 PTS DTCs.
  Did the DTC return?
  
  Yes
  - Replace the PTS Module in accordance with the Service information. Refer to MODULE, PARK ASSIST, REMOVAL AND INSTALLATION .
  - Perform the BODY VERIFICATION TEST. Refer to BODY VERIFICATION TEST .
  No
  - Perform the BODY VERIFICATION TEST. Refer to BODY VERIFICATION TEST .
  - Test complete.