Section 12 (Engine Controls - Pin Voltage Charts): Introduction
WARNING: This page is about a different car, the 2003 Isuzu Rodeo Sport, 2003 Isuzu Rodeo, 2003 Isuzu Axiom, and 2003 Isuzu Ascender. However, it is still accessible from the selected car via links, so may be relevant.
Pin voltage (value) charts are used for diagnosing intermittent symptoms and faults that are unable to be resolved during self-diagnostics. Pin voltage tests ensure Powertrain Control Module (PCM) is receiving and transmitting proper voltage and other signals. Before performing tests, ensure engine mechanical condition has been thoroughly inspected and self-diagnostics have been attempted. Available Technical Service Bulletins (TSBs) may also be helpful in correcting a hard to diagnose problem.