Diagnostic Procedure
- If using CONSULT-II, go to next step. If using generic scan tool, go to step 3.
- Turn ignition on. Select SELF-DIAG RESULTS mode with CONSULT-II. Press ERASE. Perform DTC CONFIRMATION TEST "A" again. If 1st trip DTC is detected, go to step 4. If 1st trip DTC is not detected, test is complete.
- Turn ignition on. Select MODE 4 with scan tool. Press ERASE. Perform DTC CONFIRMATION TEST "A" again. If 1st trip DTC is detected, go to the next step. If 1st trip DTC is not detected, test is complete.
- Replace the ECM. Perform programming of NVIS (NATS) system, accelerator pedal released position learning, throttle valve closed position learning and idle air volume learning. See PROGRAMMING .