Wiper Reverse Relay Circuit

WIPER REVERSE RELAY CIRCUIT

Diagnosis Procedure


1. CHECK FUSE

1.Turn ignition switch OFF.
2.Check 10 A fuse, [No. 3, located in fuse block (J/B)].
Is the inspection result normal?
YES- GO TO 2.
NO- Replace the blown fuse after repairing the affected circuit if a fuse is blown.

2. CHECK WIPER REVERSE RELAY CONTROL SIGNAL

CONSULT ACTIVE TEST
1.Turn ignition switch ON.
2.Select "FRONT WIPER" of IPDM E/R active test item.
3.With operating the test item, check voltage between IPDM E/R harness connector and ground.





Is the inspection result normal?
YES- GO TO 5.
Fixed at 0 V-GO TO 3.
Fixed at battery voltage-Replace IPDM E/R.

3. CHECK WIPER REVERSE RELAY POWER SUPPLY CIRCUIT

1.Turn ignition switch OFF.
2.Remove wiper reverse relay.
3.Check voltage between wiper reverse relay harness connector and ground.





Is the inspection result normal?
YES- GO TO 4.
NO- Repair or replace harness.

4. CHECK WIPER REVERSE RELAY CONTROL CIRCUIT

1.Disconnect IPDM E/R connector.
2.Check continuity between IPDM E/R harness connector and wiper reverse relay harness connector.





3.Check continuity between IPDM E/R harness connector and ground.





Is the inspection result normal?
YES- GO TO 6.
NO- Repair or replace harness.

5. CHECK WIPER REVERSE RELAY-1

Check wiper reverse relay.
Is the inspection result normal?
YES- Wiper reverse relay circuit is normal.
NO- Replace wiper reverse relay.

6. CHECK WIPER REVERSE RELAY-2

Check wiper reverse relay.
Is the inspection result normal?
YES- Replace IPDM E/R.
NO- Replace wiper reverse relay.


Component Inspection


1. CHECK WIPER REVERSE RELAY

1.Turn ignition switch OFF.
2.Remove wiper reverse relay.
3.Check continuity between wiper reverse relay terminals.










Is the inspection result normal?
YES- INSPECTION END
NO- Replace wiper reverse relay.