Diagnostic Test

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

CHECK FOR AN ACTIVE DTC
NOTE:
This DTC must be active for the results of this test to be valid.
1. Perform any Service Bulletins that may apply.
2. Turn the ignition on.
3. With the scan tool, read ADCM DTCs and record on the repair order.
4. With the scan tool, erase the DTCs.
5. Cycle the ignition switch from off to on.
6. With the scan tool, read the DTCs.
  Is the DTC active?
  
  Yes
  - Go To 2
  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 ANTI-LOCK BRAKE SYSTEM (ABS) MODULE CAN BUS DTCS ARE PRESENT
1. With the scan tool, read the ABS DTCs.
  Are there any ABS CAN BUS DTCs present?
  
  Yes
  - Perform the appropriate diagnostic procedures. Refer to DIAGNOSTIC CODE INDEX .
  No
  - Go To 3
CHECK OTHER MODULES FOR CAN BUS DTCS
1. With the scan tool, read the DTCs.
  Are there any CAN BUS DTCs present?
  
  Yes
  - Using the schematics as a guide, check the Anti-lock Brake System (ABS) Module 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 Anti-lock Brake System (ABS) Module in accordance with the Service Information. Refer to MODULE, ANTI-LOCK BRAKE SYSTEM (ABS), REMOVAL .
  No
  - Using the schematics as a guide, check the Active Damping Control Module (ADCM) 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 Active Damping Control Module (ADCM) in accordance with the Service Information. Refer to MODULE, ACTIVE DAMPING CONTROL (ADCM), REMOVAL .
  - Perform the ADCM VERIFICATION TEST. Refer to STANDARD PROCEDURE .