W/Harness Inspection

Power Circuit Inspection

1. Ignition "ON" & Engine "OFF".
2. Measure voltage between power terminal of the injector harness connector and chassis ground.

Specification : Approx. B+





3. Is voltage within the specification?






Control Circuit Inspection

1. Check for short to ground in control circuit
(1) Ignition "OFF".
(2) Disconnect injector connector and PCM connector.
(3) Measure resistance between control terminal of the injector harness connector and chassis ground.

Specification : Infinite Ohms





(4) Is resistance within the specification?






Terminal and Connector Inspection

1. Many malfunctions in the electrical system are caused by poor harness(es) and terminals. Faults can also be caused by interference from other electrical systems, and mechanical or chemical damage.
2. Thoroughly check connectors for looseness, poor connection, bending, corrosion, contamination, deterioration, or damage.
3. Has a problem been found?