Daytime Running Light Relay Circuit

DAYTIME RUNNING LIGHT RELAY CIRCUIT





Component Function Check

NOTE:
Check the headlamp (HI) circuit if the headlamp (HI) is not turned ON. Headlamp (HI) Circuit.

CAUTION:
Before performing the diagnosis, check that the headlamp (HI) bulb is normal.
1.CHECK DAYTIME RUNNING LIGHT OPERATION
CONSULT-III ACTIVE TEST
1. Select "DAYTIME RUNNING LIGHT" of BCM (HEADLAMP) active test item.
2. With operating the test items, check that daytime running light operation.






Is the daytime running light turned ON/OFF?
YES - Daytime running light relay-1 circuit is normal.
NO - SEE Diagnosis Procedure.




Diagnosis Procedure
1.CHECK DAYTIME RUNNING LIGHT RELAY 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 DAYTIME RUNNING LIGHT RELAY-1 POWER SUPPLY
1. Remove daytime running light relay-1.
2. Check voltage between daytime running light relay-1 harness connector and the ground.






Is the measurement value normal?
YES - GO TO 3.
NO - Repair harnesses or connectors.
3.CHECK DAYTIME RUNNING LIGHT RELAY-1
Check daytime running light relay-1. .
Is the daytime running light relay-1 normal?
YES - GO TO 4.
NO - Replace daytime running light relay-1.
4.CHECK DAYTIME RUNNING LIGHT RELAY-1 CONTROL SIGNAL OUTPUT
CONSULT-III ACTIVE TEST
1. Turn the ignition switch OFF.
2. Install daytime running light relay-1.
3. Turn the ignition switch ON.
4. Select "DAYTIME RUNNING LIGHT" of BCM (HEAD LAMP) active test item.
5. With operating the test item, check voltage between IPDM E/R harness connector and the ground.






Is the measurement value normal?
YES - Check daytime running light relay-1 circuit. SEE Component Inspection (Daytime Running Light Relay-1).
Fixed at 0 V - GO TO 5.
Fixed at battery voltage -Replace IPDM E/R.
5.CHECK DAYTIME RUNNING LIGHT RELAY-1 CONTROL SIGNAL OPEN CIRCUIT
1. Remove daytime running light relay-1.
2. Disconnect IPDM E/R harness connector.
3. Check continuity between IPDM E/R harness connector and daytime running light relay-1 harness connector.






Does continuity exist?
YES - GO TO 6.
NO - Repair the harnesses or connectors.
6.CHECK DAYTIME RUNNING LIGHT RELAY- CONTROL SIGNAL SHORT CIRCUIT
Check continuity between IPDM E/R harness connector and the ground.






Does continuity exist?
YES - Repair the harnesses or connectors.
NO - Replace IPDM E/R.




Component Inspection (Daytime Running Light Relay-1)
1.CHECK DAYTIME RUNNING LIGHT RELAY-1
1. Turn the ignition switch OFF.
2. Remove daytime running light relay-1.
3. Apply battery voltage to daytime running light relay- between terminals 1 and 2.
4. Check continuity of daytime running light relay-1.






Does continuity exist?
YES - Daytime running light relay-1 is normal.
NO - Replace daytime running light relay-1.




Component Inspection (Daytime Running Light Relay-2)
1.CHECK DAYTIME RUNNING LIGHT RELAY-2
1. Turn the ignition switch OFF.
2. Disconnect daytime running light relay-2.
3. Apply battery voltage to daytime running light relay-2 between terminals 1 and 2.
4. Check continuity daytime running light of relay-2.






Does continuity exist?
YES - Daytime running light relay-2 is normal.
NO - Replace Daytime running light relay-2.