FREE REPAIR MANUALS & LABOR GUIDES 1982-2013 Vehicles
Courtesy of Operation CHARM: Car repair manuals for everyone.

Component Inspection





Component Inspection

Check Main relay
1. IG "OFF" and disconnect main relay.
2. Measure the resistance between battery power supply and control terminals of main relay. (Measurement "A")
3. Measure the resistance between battery power supply and power supply to ECM terminals of main relay. (Measurement "B")
Specification :









4. Is the measured resistance within specification?





Check Alternator
1. IG "OFF"
2. Check the tension of the belt.
3. Check Battery terminal and Alternator B+ terminal for looseness, corrosion or damage.
4. Engine "ON".
5. Operate electric equipments (Head lamp, Hot wire, etc).
6. accelerate engine to 2000 RPM and measure the battery voltage.

Specification : Approx. 12.5V ~ 14.5V


7. Is the measured voltage within specification?