DTC 81

DTC 81: Central Processing Unit (CPU)
1. Check for other DTCs.
Is another DTC indicated?
YES - Do the appropriate troubleshooting for the DTC.
NO - Go to step 2
2. Clear the DTC using the HDS.
3. Disconnect the HDS from the 16P DLC.
4. Turn the ignition switch OFF, then turn it ON again.
5. Test-drive the vehicle.
Does the ABS indicator come on, and is DTC 81 indicated?
YES - Go to step 6.
NO - Intermittent failure; the vehicle is OK at this time.
6. Disconnect the VSA control unit 47P connector.
7. Start the engine.





8. Measure the voltage between the VSA control unit 47P connector terminal No. 35 and body ground.
Is there 1 Volts or more?
YES - Repair short to power in the wire between the VSA modulator-control unit, the yaw rate-lateral acceleration sensor, and the steering angle sensor.
NO - Go to step 9.





9. Check for continuity between the VSA control unit 47P connector terminal No. 35 and body ground.
Is there continuity?
YES - Repair short to body ground in the wire between the VSA modulator-control unit, the yaw rate-lateral acceleration sensor, and the steering angle sensors
NO - Check for loose terminals in the VSA control unit 47P connector. If necessary, substitute a known-good VSA modulator-control unit, and recheck.