Code Enable Criteria

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

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

Ignition voltage is 10 volts or more.
Engine run time is 32 seconds or more.
Above conditions are met, and one of following conditions are met for 20 tests out of 40 test samples during a 125 msec/test.
PCM senses voltage is high with low speed fan off.
PCM senses voltage is low with low speed fan on.