DTC 81-54

DTC 81-11: Central Processing Unit (CPU) Internal Circuit Malfunction

DTC 81-52: Central Processing Unit (CPU) Internal Circuit Malfunction

DTC 81-54: Central Processing Unit (CPU) Internal Circuit Malfunction

DTC 81-56: Central Processing Unit (CPU) Internal Circuit Malfunction

DTC 81-58: Central Processing Unit (CPU) Internal Circuit Malfunction

1. Turn the ignition switch ON (II).
2. Clear the DTC with the HDS.
3. Test-drive the vehicle.
4. Check for DTCs with the HDS.

Is DTC 81-11, 81-52, 81-54, 81-56, or 81-58 indicated?

YES - Replace the VSA modulator-control unit.

NO - Intermittent failure, the system is OK at this time.