DTC 81: ABS Modulator-control Unit Internal Circuit Malfunction

Turn the ignition switch to ON (II).
Check for other system DTCs.
Is another DTC indicated?

YES -Do the appropriate troubleshooting for the DTC.

NO -Go to step 3.
Clear the DTC with the HDS.
Turn the ignition switch to LOCK (0).
Test-drive the vehicle at 19mph (30 km/h) or more.
NOTE: Drive the vehicle on the road, not on a lift.
Check for DTCs with the HDS.
Is DTC 81 indicated?

YES -Check for loose terminals in the ABS modulator-control unit 47P connector. If necessary, substitute a known-good ABS modulator-control unit (see ABS MODULATOR-CONTROL UNIT REMOVAL AND INSTALLATION ), and retest.

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