Diagnostic Test

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

READ AND RECORD DTCS AND ENVIRONMENTAL DATA - ERASE DTCS AND CHECK FOR DTC TO RETURN
1. With the scan tool, read DTCs in all Electronic Control Units (ECUs) and record on the repair order.
2. With the scan tool, run a vehicle Scan Report, or record the Environmental Data related to the DTCs.
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 recorded Environmental Data and the When Monitored Conditions above, operate the vehicle in the conditions that set the DTC.
7. With the scan tool, read 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 .
CHECK THE BRAKE SYSTEM CONTROL MODULE (BSCM) FOR RELATED DTCS
1. Refer to the recorded DTCs.
2. With the scan tool, check the BSCM for related DTCs.
  Is a related DTC set in the BSCM?
  
  Yes
  - Diagnose and repair the BSCM DTCs in accordance with the Service Information. Refer to BRAKE SYSTEM CONTROL MODULE (BSCM) - DIAGNOSTIC CODE INDEX .
  No
  - Go To 3
CHECK THE BRAKE SYSTEM CONTROL MODULE (BSCM) RELATED WIRE HARNESS CONNECTIONS
1. Using the schematics as a guide, disconnect all BSCM related wire harness connectors.
2. Disconnect all related in-line wire harness connections (if equipped).
3. Inspect wire harness connectors, component connectors, and all male and female terminals for the following conditions:
  - Proper connector installation.
  - Damaged connector locks
  - Corrosion
  - 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.
4. Connect all BSCM related wire harness connectors. Be certain that all wire harness connectors are fully seated and the connector locks are fully engaged.
5. Connect all in-line wire harness connectors (if equipped). Be certain that all connectors are fully seated and the connector locks are fully engaged.
6. With the scan tool, erase DTCs.
7. Operate the vehicle in the conditions that set the DTC.
8. With the scan tool, read DTCs.
  Did the DTC return?
  
  Yes
  - Replace the BSCM in accordance with the Service Information. Refer to MODULE, BRAKE SYSTEM CONTROL (BSCM), REMOVAL AND INSTALLATION .
  - Perform the TRANSMISSION VERIFICATION TEST. Refer to TRANSMISSION VERIFICATION TEST .
  No
  - Perform the TRANSMISSION VERIFICATION TEST. Refer to TRANSMISSION VERIFICATION TEST .
  - Test Complete.