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Diagnostic Aids

WARNING: This page is about a different car, the 2000 Isuzu Rodeo and 2000 Isuzu Amigo. However, it is still accessible from the selected car via links, so may be relevant.

Check for faulty connections or damaged harness. Check for poor connection at PCM. Inspect harness connectors for backed-out terminals, improper mating, broken locks, improperly formed or damaged terminals and poor terminal connection. If connections and harness appear okay, observe HO2S-1 display on scan tool while moving all related harnesses and connectors. A change in scan tool display indicates fault location.If DTC cannot be duplicated, FAILURE RECORDS data can be used in determining vehicle mileage since DTC was last set.

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