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?

	▶ Repair as necessary and go to "Verification of Vehicle Repair" procedure.
	▶ Go to "FR terminal Circuit Inspection" procedure.

With ignition OFF, disconnect alternator connector.

IG KEY "ON" & ENG "OFF"

Measure voltage between FR terminal of the alternator harness connector and chassis ground.

Is the measured voltage within specification?

	▶ Go to "C terminal Circuit Inspection" procedure.
	▶ Repair or replace as necessary and then, go to "Verification of Vehicle Repair" procedure.

With ignition OFF, disconnect alternator connector.

IG KEY "ON" & ENG "OFF"

Measure voltage between C terminal of the alternator harness connector and chassis ground.

Is voltage within the specification?

	▶ Go to "Component Inspection" procedure.
	▶ Repair or replace as necessary and then, go to "Verification of Vehicle Repair" procedure.