Diagnostic Test

VERIFY THE DTC IS ACTIVE 

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 

   NOTE:

   For this failure it is necessary to replace both the ABS Module and the HCU as a complete unit.

   • Replace the Anti-lock Brake System (ABS) Module in accordance with the Service Information. Refer to MODULE, ANTI-LOCK BRAKE SYSTEM, REMOVAL .
   • 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 

   • Perform ABS-INTERMITTENT CONDITION TEST. Refer to STANDARD PROCEDURE  .