Diagnostic Aids
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.
Check for faulty connections or damaged harness. Observe a voltmeter connected to 58X CKP sensor reference circuit at PCM harness connector while moving all related harnesses and connectors. A change in voltage indicates fault location. Reviewing FAILURE RECORDS vehicle mileage since last failure may help determine how often condition that caused failure occurred, and may assist in diagnosing problem.