Diagnostic Test

WARNING: This page is about a different variant/trim than selected.

CHECK FOR ANY SERVICE BULLETINS OR PCM SOFTWARE UPDATES
1. Check for any applicable Service Bulletins or Flash updates related to the DTC.
  Are there any applicable Service Bulletins or Flash updates?
  
  Yes
  - Perform the applicable repair.
  - Perform the POWERTRAIN VERIFICATION TEST. Refer to POWERTRAIN VERIFICATION TEST .
  No
  - Go To 2
READ AND RECORD DTCS AND ENVIRONMENTAL DATA - ERASE DTCS AND CHECK FOR THE DTC TO RETURN
1. With the scan tool, read DTCs in all Electronic Control Units (ECUs) and record on the repair order.
2. For future reference, with the scan tool, run and save a vehicle Scan Report and all related recorded data.
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 When Monitored and Set Conditions above and recorded data, operate the vehicle in the conditions that set the DTC.
7. With the scan tool, read DTCs.
Did the DTC return?

Yes
- Go To 3
No
- Perform the INTERMITTENT CONDITION diagnostic procedure. Refer to INTERMITTENT CONDITION .
VERIFY THAT THE BODY CONTROL MODULE IS CAPABLE OF SETTING LEFT FRONT DOOR AJAR SWITCH 2 FAULTS
1. Check the BCM fault code list to verify that the BCM has the capability to set DTCs against the Left Front Door Ajar Switch 2. Refer to BODY CONTROL MODULE (BCM) - DIAGNOSTIC CODE INDEX .
  Are there any Left Front Door Ajar Switch 2 faults listed in the DTC list for the BCM?
  
  Yes
  - Go To 4
  No
  - Go To 5
CHECK THE BODY CONTROL MODULE FOR LEFT FRONT DOOR AJAR SWITCH 2 FAULTS
1. With the scan tool, read DTCs in the BCM.
  Is the BCM setting any DTCs against the Left Front Door Ajar Switch 2?
  
  Yes
  - Perform the diagnostic procedure in the BCM. Refer to 3.6L - DIAGNOSTIC CODE INDEX
  No
  - Go To 7.
CHECK THE LEFT FRONT DOOR LATCH WIRING HARNESS FOR PROPER OPERATION
1. Turn the ignition off.
2. Disconnect the Left Front Door Latch harness connector.
3. Disconnect the appropriate BCM harness connector.
4. Check the Left Front Door Latch wiring for:
  - an open condition.
  - a short to voltage.
  - a short to ground.
  - a short to each other.
  Were any problems found with the wiring?
  
  Yes
  - Perform the appropriate repair of the wiring.
  - Perform the POWERTRAIN VERIFICATION TEST. Refer to POWERTRAIN VERIFICATION TEST .
  No
  - Go To 6
REPLACE THE LEFT FRONT DOOR LATCH AND RETEST FOR DTCS
1. Replace the component in accordance with the Service Information.
2. Connect the component and Electronic Control Unit (ECU) harness connectors.
3. Turn the ignition on.
4. With the scan tool, erase DTCs.
5. Using the Environmental Data or When Monitored Conditions above, operate the vehicle within the conditions that set the DTC.
6. With the scan tool, read DTCs.
Did the DTC return?

Yes
- Go To 7
No
- Replacing the faulty component repaired the fault.
- Perform the POWERTRAIN VERIFICATION TEST. Refer to POWERTRAIN VERIFICATION TEST .
CHECK RELATED BCM AND COMPONENT 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.
  - Check for spread terminals and verify proper terminal tension.
  Repair any conditions that are found.
5. Reconnect all BCM 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. Test drive or operate the vehicle in accordance with the when monitored and set conditions.
10. With the scan tool, read DTCs.
  Did the DTC return?
  
  Yes
  - Replace and program the Body Control Module (BCM) in accordance with the Service Information. Refer to MODULE, BODY CONTROL (BCM), REMOVAL .
  - Perform the BODY VERIFICATION TEST. Refer to BODY VERIFICATION TEST
  No
  - The wiring or poor connection problem has been repaired.
  - Perform the BODY VERIFICATION TEST. Refer to BODY VERIFICATION TEST