Diagnostic Test

WARNING: This page is about a different car, the 2014 RAM 3500 HD and 2014 RAM 2500 HD. However, it is still accessible from the selected car via links, so may be relevant.

CHECK FOR AN ACTIVE DTC
1. Turn the ignition on.
2. With the scan tool, read ABS DTCs and record on the repair order.
3. With the scan tool, read and record Freeze Frame information.
4. With the scan tool, erase DTCs.
5. Start the engine.
6. Press and release the brake pedal.
7. With the scan tool, read the DTCs.
  Is the DTC active?
  
  Yes
  - Go To 2
  No
  - Perform the ABS INTERMITTENT TEST. Refer to STANDARD PROCEDURE .
ANTI-LOCK BRAKE SYSTEM (ABS) MODULE
1. Replace the Anti-lock Brake System (ABS) Module in accordance with the Service Information. Refer to MODULE, ANTI-LOCK BRAKE SYSTEM, REMOVAL . Perform the ABS VERIFICATION TEST. Refer to STANDARD PROCEDURE .
2. Turn the ignition on.
3. With the scan tool, erase the DTCs.
4. Start the engine.
5. Press and release the brake pedal.
6. With the scan tool, read the DTCs.
  Does the DTC remain active?
  
  Yes
  - Replace the Hydraulic Control Unit (HCU) in accordance with the Service Information. Refer to HYDRAULIC CONTROL UNIT (HCU), REMOVAL .
  - Perform the ABS VERIFICATION TEST. Refer to STANDARD PROCEDURE .
  No
  - Test complete.
  - Perform the ABS VERIFICATION TEST. Refer to STANDARD PROCEDURE .