Operation CHARM: Car repair manuals for everyone.

ABS

ABS DTC 81: Central Processing Unit (CPU) Diagnosis, and ROM/RAM Diagnosis
1. Clear the DTC.
2. Test-drive the vehicle.
Does the ABS indicator come on and is DTC 81 indicated?
YES - Replace the ABS/TCS control unit.
NO - Intermittent failure; the vehicle is OK at this time.