Advanced Hydraulic Booster

Advanced Hydraulic Booster DTC Troubleshooting: 51

DTC 51:

Motor Circuit ON

1. Turn the ignition switch to ON (II).

2. Clear the DTC with the HDS.

3. Turn the ignition switch to LOCK (0), press the brake pedal 20 times.

4. Turn the ignition switch to ON (II).

5. Check for DTCs with the HDS.

Is DTC 51 indicated?

YES -

Replace the servo unit Service and Repair.�

NO -

Intermittent failure, the system is OK at this time. Check for loose terminals at the servo unit25P connector. Refer to intermittent failures troubleshooting Initial Inspection and Diagnostic Overview.�