Conditions for Clearing the MIL/DTC
WARNING: This page is about a different car, the 2002 Oldsmobile Bravada, 2002 GMC Envoy XL, 2002 GMC Envoy, and 2002 Chevrolet TrailBlazer. However, it is still accessible from the selected car via links, so may be relevant.
IMPORTANT:
Follow this procedure in order to clear DTC P1484 after completing a repair.
- Use the Clear DTC Information function on the scan tool.
- Perform an ignition key cycle.
The PCM turns OFF the MIL after the third consecutive trip that the diagnostic test has run and passed.
The history DTC will clear after 40 consecutive warm-up cycles have occurred without a malfunction.