Diagnostic Test

CHECK ENGINE DTCs
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 PCM DTCs.
  Are there any Charging or Battery DTCs present?
  
  Yes
  
  Perform the appropriate diagnostic procedure. Refer to DIAGNOSTIC CODE INDEX .
  
  No
  - Go To 2
CHECK FOR AN ACTIVE DTC
1. With the scan tool, erase all DTCs.
2. Start the engine and run for 2 minutes.
3. With the scan tool, read the DMRR DTCs.
  Is the DTC active?
  
  Yes
  - Go To 3
  No
  - Perform the TESTING FOR AN INTERMITTENT CONDITION procedure. Refer to TESTING FOR AN INTERMITTENT CONDITION .
CHECK THE (A926) FUSED B(+) CIRCUIT FOR HIGH RESISTANCE
1. Using the scan tool, read the Battery Voltage of the Door Module.
2. Using the scan tool, read the Battery Voltage of the BCM (Body Control Module).
  Is the voltage within 0.5 volt of each module?
  
  Yes
  - Replace the Right Rear Door Module in accordance with the Service Information. Refer to REAR .
  - Perform the BODY VERIFICATION TEST. Refer to BODY VERIFICATION TEST .
  No
  - Go To 4
CHECK THE VOLTAGE AT THE DOOR MODULE HARNESS
1. Turn the ignition off.
2. Disconnect the Door Module C1 Harness connector.
3. Measure the voltage between the (A926) Fused B(+) circuit and the (Z920) Ground at the Right Rear Door Module C1 connector.
4. Measure the voltage at the battery.
  Is the voltage at the module connector within 0.2 volt of battery voltage?
  
  No
  - Repair the (A926) Fused B(+) circuit or the (Z920) Ground circuit for high resistance.
  - Perform the BODY VERIFICATION TEST. Refer to BODY VERIFICATION TEST .
  Yes
  - Go To 5
CHECK RELATED HARNESS CONNECTIONS
1. Disconnect all Right Rear Door 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 Right Rear Door Module 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 Vehicle Scan Report, 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 DMRR DTCs.
  Did the DTC return?
  
  Yes
  - Replace the Right Rear Door Module in accordance with the Service Information. Refer to REAR .
  - Perform the BODY VERIFICATION TEST. Refer to BODY VERIFICATION TEST .
  No
  - Perform the BODY VERIFICATION TEST. Refer to BODY VERIFICATION TEST .
  - Test complete.