Inspection Procedure 8: Either of the position lamps does not illuminate.

caution

Whenever the ECU is replaced, ensure that the power supply circuit, the earth circuit and the communication circuit are normal.

COMMENTS ON TROUBLE SYMPTOM

If any of the position lamps does not illuminate, the wiring harness, connector(s), or the bulb may have a problem, or the fuse may be burned out.

PROBABLE CAUSES

Malfunction of the position lamp bulb
Malfunction of the headlamp assembly

DIAGNOSIS PROCEDURE

STEP 1. Connector check: A-13 headlamp assembly (Position:LH) connector, A-26 headlamp assembly (Position:RH) connector

Q. Is the check result normal?

	Go to Step 2.

	Repair the defective connector.

STEP 2. Bulb check

Check the bulb(s) of the position lamp that does not illuminate.

Q. Is the check result normal?

	Go to Step 3.

	Replace the bulb(s) of the lamp that does not illuminate.

STEP 3. Resistance measurement at A-13 headlamp assembly (Position:LH) connector, A-26 headlamp assembly (Position:RH) connector

(1)Disconnect the connector, and measure at the wiring harness side.

(2)Measure the resistance between A-13 headlamp assembly (Position:LH) connector terminal No.10 or A-26 headlamp assembly (Position:RH) connector terminal No.10, which does not illuminate, and the body earth.
OK: Continuity exists (2 Ω or less)

Q. Is the check result normal?

	Go to Step 5.

	Go to Step 4.

STEP 4. Check the wiring harness from A-13 headlamp assembly (Position:LH) connector terminal No.10 or A-26 headlamp assembly (Position:RH) connector terminal No.10 to body earth.

note

Prior to the wiring harness inspection, check the earth connector B-102 and repair if necessary. <LHD>

Check the earth wires for open circuit.

Q. Is the check result normal?

	The trouble can be an intermittent malfunction (Refer to GROUP 00 - How to use Troubleshooting/inspection Service Points - How to Cope with Intermittent Malfunction ).

	Repair the wiring harness.

STEP 5. Connector check: B-306 junction block connector

Q. Is the check result normal?

	Go to Step 6.

	Repair the defective connector.

STEP 6. Check the wiring harness from A-13 headlamp assembly (Position:LH) connector terminal No.8 or A-26 headlamp assembly (Position:RH) connector terminal No.8 to B-306 junction block connector terminal No.1 <position: LH> or terminal No.13 <position: RH>

Check the power supply line for open circuit and short circuit.

Q. Is the check result normal?

	Go to Step 7.

	Repair the wiring harness.

STEP 7. Retest the system.

Check that the position lamps illuminate normally.

Q. Is the check result normal?

	The trouble can be an intermittent malfunction (Refer to GROUP 00 - How to use Troubleshooting/inspection Service Points - How to Cope with Intermittent Malfunction ).

	Replace the position lamp which does not illuminate.

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