HEADLAMP WASHER CIRCUITWW-47
< DTC/CIRCUIT DIAGNOSIS >
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HEADLAMP WASHER CIRCUIT
Component Function CheckINFOID:0000000006371495
1.CHECK HEADLAMP WASHER OPERATION
CONSULT-III ACTIVE TEST
1. Select “HEAD LAMP WASHER” of IPDM E/R active test item.
2. With operating the test item, check headlamp operation.
Is headlamp washer operation normally?
YES >> Headlamp washer circuit is normal.
NO >> Refer to WW-47, "
Diagnosis Procedure".
Diagnosis ProcedureINFOID:0000000006371496
1.CHECK HEADLAMP WASHER FUSIBLE LINK
1. Turn the ignition switch OFF.
2. Check that the headlamp washer 30A fusible link (#U) is not fusing.
Is the fusible link fusing?
YES >> Replace the fusible link after repairing the applicable circuit.
NO >> GO TO 2.
2.CHECK HEADLAMP WASHER RELAY POWER SUPPLY
1. Remove headlamp washer relay.
2. Check voltage between headlamp washer relay harness connector and ground.
Is the measurement value normal?
YES >> GO TO 3.
NO >> Repair harnesses or connectors.
3.CHECK HEADLAMP WASHER RELAY
Check headlamp washer relay. Refer to WW-46, "
Component Inspection".
Is the headlamp washer relay normal?
YES >> GO TO 4.
NO >> Replace headlamp washer relay.
4.CHECK HEADLAMP WASHER RELAY CONTROL SIGNAL
CONSULT-III ACTIVE TEST
1. Turn the ignition switch OFF.
2. Install headlamp washer relay.
3. Turn the ignition switch ON.
4. Select “HEAD LAMP WASHER” of IPDM E/R active test item.
5. With operating the test item, check vo ltage between IPDM E/R harness connector and ground.
On :Headlamp washer ON operation
Off :Stop the headlamp washer.
(+)
(− ) Voltage (Approx.)
Headlamp washer relay
Connector Terminal
E51 1
Ground Battery voltage
3
(+)
(− ) Te s t i t e m
Voltage (Approx.)
IPDM E/R
HEAD LAMP WASHER
Connector Terminal
Revision: 2010 May2011 QX56
WW-48
< DTC/CIRCUIT DIAGNOSIS >
HEADLAMP WASHER CIRCUIT
Is the measurement value normal?
YES >> GO TO 7.
Fixed at 0 V >> GO TO 5.
Fixed at battery voltage >>Replace IPDM E/R.
5.CHECK HEADLAMP WASHER RELAY CONTROL SIGNAL OPEN CIRCUIT
1. Turn the ignition switch OFF.
2. Remove headlamp washer relay.
3. Disconnect IPDM E/R harness connector.
4. Check continuity between IPDM E/R harness c onnector and headlamp washer relay harness connector.
Does continuity exist?
YES >> GO TO 6.
NO >> Repair the harnesses or connectors.
6.CHECK HEADLAMP WASHER RELAY CONTROL SIGNAL SHORT CIRCUIT
Check continuity between IPDM E/R harness connector and ground.
Does continuity exist?
YES >> Repair the harnesses or connectors.
NO >> Replace IPDM E/R.
7.CHECK HEADLAMP WASHER PUMP OPEN CIRCUIT
1. Turn the ignition switch OFF.
2. Remove headlamp washer relay.
3. Disconnect headlamp washer pump connector.
4. Check continuity between headlamp washer re lay harness connector and headlamp washer pump har-
ness connector.
Does continuity exist?
YES >> GO TO 8.
NO >> Repair the harnesses or connectors.
8.CHECK HEADLAMP WASHER PUMP (GND) OPEN CIRCUIT
Check continuity headlamp washer pump harness connector and ground.
Does continuity exist?
YES >> Replace headlamp washer pump.
NO >> Repair the harnesses or connectors.
E12 21 Ground On 0 V
Off Battery voltage
IPDM E/R Headlamp washer relay Continuity
Connector Terminal Connector Terminal
E12 21 E51 2 Existed
IPDM E/R GroundContinuity
Connector Terminal
E12 21 Not existed
Headlamp washer relay Headlamp washer pump Continuity
Connector Terminal Connector Terminal
E51 5 E41 1 Existed
Headlamp washer pump GroundContinuity
Connector Terminal
E41 2 Existed
Revision: 2010 May2011 QX56
