Diagnostic Test

WARNING: This page is about a different car, the 2020 Jeep Renegade. However, it is still accessible from the selected car via links, so may be relevant.

CHECK THE BODY CONTROL MODULE (BCM) AND REAR POWER DISTRIBUTION CENTER (PDC) ASSEMBLY CONNECTIONS
1. Turn the ignition off.
2. Inspect the BCM and Rear PDC Assembly harness connectors for any loose connections or damage.
  Were any problems found?
  
  Yes
  - Restore or repair the connection.
  - Perform the BODY VERIFICATION TEST. Refer to BODY VERIFICATION TEST .
  No
  - Go To 2
CHECK THE (P103) DRIVER LUMBAR MOTOR DRIVER CIRCUIT FOR A SHORT TO GROUND
1. Disconnect the Rear PDC Assembly C1 harness connector.
2. Disconnect the BCM C6 harness connector.
3. Check for continuity between ground and the (P103) Driver Lumbar Motor Driver circuit at Rear PDC Assembly C1 harness connector - terminal 22.
  Is there continuity between ground and the (P103) Driver Lumbar Motor Driver circuit?
  
  Yes
  - Repair the short to ground in the (P103) Driver Lumbar Motor Driver circuit.
  - Perform the BODY VERIFICATION TEST. Refer to BODY VERIFICATION TEST .
  No
  - Go To 3
CHECK THE DTC STATUS
1. Connect the Rear PDC Assembly C1 harness connector.
2. Connect the BCM C6 harness connector.
3. Turn the ignition on.
4. With the scan tool, read BCM DTCs.
  Is the DTC Active?
  
  Yes
  - Go To 4
  No
  - The DTC is Stored. Activate the appropriate Seat Switch and attempt to move the seat. If the seat moves, test complete.
  - Perform the BODY VERIFICATION TEST. Refer to BODY VERIFICATION TEST .
CHECK FOR VOLTAGE ON THE (P103) DRIVER LUMBAR MOTOR DRIVER CIRCUIT
1. Turn the ignition off.
2. Disconnect the Rear PDC Assembly C1 harness connector.
3. Turn the ignition on.
4. Measure the voltage on the (P103) Driver Lumbar Motor Driver circuit at the Rear PDC Assembly C1 harness connector - terminal 29.
  Is there any voltage present?
  
  Yes
  - Go To 5
  No
  - Repair the short to ground in the (P103) Driver Lumbar Motor Driver circuit.
  - Perform the BODY VERIFICATION TEST. Refer to BODY VERIFICATION TEST .
CHECK RELATED HARNESS CONNECTIONS
1. Disconnect all BCM 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. Connect all BCM harness connectors. Be certain that all harness connectors are fully seated and the connector locks are fully engaged.
6. Connect all in-line harness connectors (if equipped). Be certain that all connectors are fully seated and the connector locks are fully engaged.
7. Connect 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 When Monitored and Set Conditions above, operate the vehicle in the conditions that set the DTC.
10. With the scan tool, read BCM DTCs.
  Did the DTC return?
  
  Yes
  - The DTC is Active. Replace the Body Control Module (BCM) in accordance with the Service Information. Refer to MODULE, BODY CONTROL (BCM), 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.