Code Enable Criteria

WARNING: This page is about a different car, the 2002 Isuzu Trooper. However, it is still accessible from the selected car via links, so may be relevant.

Following conditions must be met for DTC diagnostic test to run:

Ignition is on.
Engine is running, as determined by 58X crankshaft position input signal.
Output voltage is not equal to 5 volts when output is ON.
Output voltage us not equal to zero voltage when output is OFF.
Ten test failures occur within 10 samples of continuous spark events.