Diesel Data: Automotive Repair

DTC 81

DTC 81: Central Processing Unit (CPU)
1. Turn the ignition switch ON (II).
2. Check for other DTCs.
Is another DTC indicated?
YES - Do the appropriate troubleshooting for the DTC.
NO - Go to step 3.

3. Clear the DTC using the HDS.
4. Turn the ignition switch OFF, then disconnect the HDS.
5. Test-drive the vehicle.
Does the ABS indicator come on, and is DTC 81 indicated?
YES - Check for loose terminals in the VSA modulator-control unit 47P connector. If necessary, substitute a known-good VSA modulator-control unit, and retest.
NO - Intermittent failure; the vehicle is OK at this time.