Diagnostic Test

WARNING: This page is about a different car, the 2013 RAM 3500 HD and 2013 RAM 2500 HD. However, it is still accessible from the selected car via links, so may be relevant.

VERIFY THE DTC IS ACTIVE
NOTE:
This DTC must be active for the results of this test to be valid.
1. Turn the ignition on.
2. With the scan tool, read and record DTCs.
3. With the scan tool, read and record Freeze Fame information.
4. With the scan tool, erase DTCs.
5. Start the engine.
6. Press the brake pedal firmly and release.
7. With the scan tool, read and record DTCs.
  Is the DTC active at this time?
  
  Yes
  - Go To 2
  No
  - Perform the ABS INTERMITTENT CONDITION TEST. Refer to STANDARD PROCEDURE .
MECHANICAL BRAKE SYSTEM INSPECTION
1. Turn the ignition off.
2. Check the brake fluid level.
3. Check the brake fluid for contaminants.
4. Check base brake issues.
5. Visually inspect all the brake lines for bent, damaged, or pinched restrictions.
  Where any problems found?
  
  Yes
  - Repair as necessary.
  - Perform the ABS VERIFICATION TEST. Refer to STANDARD PROCEDURE .
  No
  
  NOTE:
  For this failure it is necessary to replace both the ABS Module and the HCU as a complete unit.
  - 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 .