Terminal and Connector Inspection
1.

Many malfunctions in the electrical system are caused by poor harness and terminals.

Faults can also be caused by interference from other electrical systems, and mechanical or chemical damage.

2.

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

3.

Have any problems been found?

▶ Repair as necessary and go to "Verification of vehicle Repair" procedure

▶ Go to "Control Circuit Inspection" procedure.

Signal Circuit Inspection
1.

IG "OFF" & Disconnect Alternator connector.

2.

IG "ON".

3.

Measure voltage between control terminal of Alternator(COM) harness connector and chassis ground.

Measure voltage between control terminal of Alternator(FR) harness connector and chassis ground.

Specification :

FR - Approx 12V

COM - Approx 2.65V(PWM Signal)

4.

Is the measured voltage within specification?

▶ Go to "Component Inspection" procedure.

▶ Repair or replace as necessary and then, go to "Verification of Vehicle Repair" procedue.

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