Operation CHARM: Car repair manuals for everyone.
Hosted by mcallihan.com

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 indicated.
NO - Go to step 2
2. Clear the DTC.
3. Test-drive the vehicle.
Does the ABS indicator come on, and is DTC 81 indicated?
YES - Check for loose terminals in the ABS/TCS control unit 47P connector. If necessary, substitute a known-good ABS/TCS modulator-control unit, and recheck.
NO - Intermittent failure; the vehicle is OK at this time.