Component Inspection

Engine Control

P0563 System Voltage High - 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 Generator
1. IG "OFF".
2. Check the tension of the belt.
3. Check Battery terminal and Generator 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. 12.5 V ~ 14.5 V

7. Is the measured voltage within specification?