Power Supply And Ground Circuit

POWER SUPPLY AND GROUND CIRCUIT

Diagnosis Procedure


1. CHECK FUSE

Check that the following fuse is not fusing.





Is the fuse fusing?
YES- Replace the fuse after repairing the applicable circuit.
NO- GO TO 2.

2. CHECK ON-BOARD CHARGER GROUND

1.Turn power switch OFF.
2.Disconnect on-board charger harness connector.
3.Check the continuity between on-board charger harness connector and ground.





Is the inspection result normal?
YES- GO TO 3.
NO- Repair or replace error-detected parts.

3. CHECK 12V BATTERY POWER SUPPLY-I

1.Check the voltage between on-board charger harness connector and ground.





Is the inspection result normal?
YES- GO TO 5.
NO- GO TO 4.

4. CHECK 12V BATTERY POWER SUPPLY CIRCUIT-I

1.Pull out #33 fuse.
2.Check the continuity between on-board charger harness connector and fuse terminal.





3.Also check harness for short to ground.
Is the inspection result normal?
YES- Check power supply circuit for battery power supply.
NO- Repair or replace error-detected parts.

5. CHECK 12V BATTERY POWER SUPPLY-II (M/C RELAY)

1.Turn power switch ON.
2.Check the voltage between on-board charger harness connector and ground.





Is the inspection result normal?
YES- GO TO 7.
NO- GO TO 6.

6. CHECK 12V BATTERY POWER SUPPLY CIRCUIT-II

1.Pull out #74 fuse.
2.Check the continuity between on-board charger harness connector and fuse terminal.





3.Also check harness for short to ground and short to power.
Is the inspection result normal?
YES- Check M/C relay routing circuit. Refer to "Diagnosis Procedure" M/C Relay.
NO- Repair or replace error-detected parts.

7. CHECK POWER ON POWER SUPPLY

1.Turn power switch ON.
2.Check the voltage between on-board charger harness connector and ground.





Is the inspection result normal?
YES- INSPECTION END
NO- GO TO 8.

8. CHECK POWER ON POWER SUPPLY CIRCUIT

1.Pull out #3 fuse.
2.Turn power switch OFF.
3.Check the continuity between on-board charger harness connector and fuse terminal.





4.Also check harness for short to ground and short to power.
Is the inspection result normal?
YES- Check power supply circuit for POWER ON power supply.
NO- Repair or replace error-detected parts.