Diagnostic Test
WARNING: This page is about a different car, the 2013 Chrysler 300. However, it is still accessible from the selected car via links, so may be relevant.
- VERIFY THE DTC IS ACTIVE NOTE:
Diagnose all CAN B and C communication DTCs before continuing.
- Ignition on, engine not running.
- With the scan tool, read DTCs.
Is the DTC active at this time?
Yes
- Go To 3.
No
- Test complete. The condition or conditions that originally set this DTC are not present at this time. Using the wiring diagrams as a guide, check all related splices and connectors for signs of water intrusion, corrosion, pushed out or bent terminals, and correct pin tension.
- CHECK FOR BCM DTCS
- With the scan tool, read BCM DTCs.
Are there any BCM DTCs present?
Yes
- Perform the appropriate diagnostic procedure. Refer to BODY CONTROL MODULE (BCM) - DIAGNOSTIC CODE INDEX .
No
- Go To 3.
- With the scan tool, read BCM DTCs.
- CHECK FOR TCM DTCS
- Ignition on, engine not running.
- With the scan tool, read the DTCs in the TCM.
Are there any TCM DTCs present?
Yes
- Perform the appropriate diagnostic procedure. Refer to the DTC INDEX article .
No
- Using the schematics as a guide, check the Drive Train Control Module (DTCM) pins, terminals, and connectors for corrosion, damage, or terminal push out. Pay particular attention to all power and ground circuits. If no problems are found, replace the Drive Train Control Module (DTCM) in accordance with the Service Information. Refer to MODULE, DRIVETRAIN CONTROL, REMOVAL .
- Perform the DTCM VERIFICATION TEST. Refer to STANDARD PROCEDURE .