Advanced Hydraulic Booster

Advanced Hydraulic Booster DTC Troubleshooting: 31, 32

DTC 31:

NO Solenoid Valve Malfunction

DTC 32:

NC Solenoid Valve Malfunction

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

2. Clear the DTC with the HDS.

3. Turn the ignition switch to LOCK (0), then turn it to ON (II) again.

4. Check for DTCs with the HDS.

Is DTC 31 or 32 indicated?

YES -

Replace the servo unit Service and Repair.�

NO -

Go to step 5.

5. Do the INCREASING MASTER CYLINDER PRESSURE TEST in the FUNCTION TEST with the HDS.

Does the valve operate?

YES -

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

NO -

Replace the servo unit Service and Repair.�