System Inspection

Engine

Engine Control - P0563 System Voltage High - System Inspection

System Inspection

1. Alternator circuit check
(1) Key "OFF".
(2) Disconnect alternator connector.
(3) Key "ON".
(4) Measure the voltage between terminal 1/E01 of alternator harness connector and chassis ground.
Measure the voltage between terminal 2/E02 of alternator harness connector and chassis ground.
A. Specification : 12 V




B. Specification : 10.5 - 11.5 V




(5) Is the measured voltage within specification?
YES
1) Go to "Component inspection" procedure.
NO
1) In case the voltage is not stable at terminal 1/E01, check Open circuit, Battery voltage and Fuse (MAIN 120 A). And then go to "Verification of vehicle Repair" procedure.
2) In case the voltage is not stable at terminal 2/E02, check Open circuit, MIL circuit and MIL resistor. And then go to "Verification of vehicle Repair" procedure.