With Consult
OVERALL FUNCTION CHECK1. Start engine.
2. Select "SELF-DIAG RESULTS" mode for Engine Control Module (ECM) with CONSULT.
3. Drive vehicle under the following conditions: Shift lever in D, OD control switch in "OFF" position, vehicle speed higher than 10 km/h (6 MPH), throttle opening greater than 1/2 of the full throttle position and driving for more than 5 seconds.