Conditions For Setting The DTC

WARNING: This page is about a different car, the 2002 Pontiac Firebird and 2002 Chevrolet Camaro. However, it is still accessible from the selected car via links, so may be relevant.

The engine is running.
The PCM detects the signal circuit is less than 5 counts (0.1 volts) or more than 250 counts (4.95 volts).
The condition exists for 20 seconds.