Conditions for Running the DTC

WARNING: This page is about a different car, the 2002 GMC Sierra, 2002 GMC Cab & Chassis Sierra, 2002 Chevrolet Silverado, and 2002 Chevrolet Cab & Chassis Silverado. However, it is still accessible from the selected car via links, so may be relevant.

The system voltage must be between 9.0 and 16.0 volts.
The ignition switch in the OFF position.
Unlock doors from the remote control door lock key fob or open any door.
The above conditions must be met for more than 0.5 seconds.