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.

Thoroughly check connectors for looseness, poor connection, bending, corrosion, contamination, deterioration, or damage.

Has a problem been found?

YES

▶ Repair as necessary and go to "Verification of Vehicle Repair" procedure procedure.

NO

▶ Go to "Power Circuit Inspection" procedure.

Ignition "ON" & Engine "OFF".

Measure voltage between terminal 1 of the injector harness connector and chassis ground.

Specification : Approx. B+

Is voltage within the specification?

YES

▶ Go to "Control Circuit Inspection" procedure.

NO

▶ Check for a open in the power supply circuit between the main relay and the Injector

Check for open or blown 15A injector fuse.

Repair as necessary and go to "Verification of Vehicle Repair" procedure.

Check for short to ground in control circuit.

(2)

Measure resistance between terminal 2 of the injector harness connector and chassis ground.

Specification : Infinite

Is resistance within the specification?

YES

▶ Check for poor connection between PCM and component: backed out terminal, improper mating, broken locks or poor terminal to wire connection. Repair as necessary and go to "Verification of Vehicle Repair" procedure.

NO

▶ Repair open or short to ground in control harness and go to "Verification of Vehicle Repair" procedure.