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Inspection Procedure 9

Inspection Procedure 9: Any Of The Position Lights, Side Marker Lights Or The License Plate Lights Does Not Illuminate.

Position Lights, Licence Plate Lights And Rear Side Marker Lights Circuit (Part 1):




Position Lights, Licence Plate Lights And Rear Side Marker Lights Circuit (Part 2):






TECHNICAL DESCRIPTION (COMMENT)
When any of the position light, side marker light or license plate light does not illuminate, the harness, connector(s), or bulb(s) may have a problem, or the fuse may be burned out.

TROUBLESHOOTING HINTS
- Malfunction of bulbs
- Malfunction of rear combination light
- Malfunction of rear combination light harness
- Malfunction of license plate light
- Malfunction of headlight
- Malfunction of rear side maker light
- The wiring harness or connectors may have loose, corroded, or damaged terminals, or terminals pushed back in the connector

DIAGNOSIS

Required Special Tools:
- MB992006: Extra fine probe
- MB991223: Harness set

STEP 1. Rear combination light check.

Q: Does the rear combination light illuminate normally?

YES : Go to Step 2.

NO : Rear Combination Light Trouble Symptom Chart

STEP 2. Check headlight assembly connector A-56 (position light RH and front side maker RH) or A-37 (position light LH and front side maker LH), license plate light connector F-07 (RH) or F-03 (LH), or rear side marker light connector F-10 (RH) or F-16 (LH) for loose, corroded or damaged terminals, or terminals pushed back in the connector.

Q: Is headlight assembly connector A-56 (position light RH and front side maker RH) or A-37 (position light RH and front side maker LH), license plate light connector F-07 (RH) or F-03 (LH), or rear side marker light connector F-10 (RH) or F-16 (LH) in good condition?

YES : Go to Step 3.

NO : Repair the damaged parts.

STEP 3. Bulb check.

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

Q: Is the check result normal?

YES : Go to Step 4.

NO : Replace the bulb(s) of the light that does not illuminate.

STEP 4. Resistance measurement at headlight assembly connector A-56 (position light RH and front side maker RH) or A-37 (position light LH and front side maker LH), license plate light connector F-07 (RH) or F-03 (LH), or rear side marker light connector F-10 (RH) or F-16 (LH).

1. Disconnect the connector, and measure at the wiring harness side.
2. Measure the resistance between the connector of light which does not illuminate and the body ground.




- Measure the resistance between headlight assembly connector A-37 (LH), A-56 (RH) (terminal No. 8) and body ground.




- Measure the resistance between license plate light connector F-03 (LH), F-07 (RH) (terminal No. 1) and body ground.




- Measure the resistance between rear side marker light connector F-16 (LH), F-10 (RH) (terminal No. 1) and body ground.
The measured value should be continuity exists (2 ohms or less).

Q: Does the measured resistance value correspond with this range?

YES : Go to Step 6.

NO : Go to Step 5.

STEP 5. Check wiring harness between headlight assembly connector A-56 (position light RH and front side maker RH) or A-37 (position light LH and front side maker LH) (terminal No. 8),license plate light connector F-07 (RH) or F-03 (LH) (terminal No. 1), or rear side marker light connector F-10 (RH) or F-16 (LH) (terminal No. 1) and the body ground.

NOTE: Before the wiring harness check, check the F-15 rear side light, or and repair that if necessary.

Q: Is the wiring harness between headlight assembly connector A-56 (position light RH and front side maker RH) or A-37 (position light LH and front side maker LH) (terminal No. 8),license plate light connector F-07 (RH) or F-03 (LH) (terminal No. 1), or rear side marker light connector F-10 (RH) or F-16 (LH) (terminal No. 1) and the body ground in good condition?

YES : Go to Step 8.

NO : Repair the wiring harness.

STEP 6. Check ETACS-ECU connector C-304 or C-311 for loose, corroded or damaged terminals, or terminals pushed back in the connector.

Q: Is ETACS-ECU connector C-304 or C-311 in good condition?

YES : Go to Step 7.

NO : Repair the damaged parts.

STEP 7. Check Wiring harness between headlight assembly connector A-56 (position light RH and front side maker RH) or A-37 (position light and front side maker LH) (terminal No. 6),license plate light connector F-07 (RH) or F-03 (LH) (terminal No. 2), or rear side marker light connector F-10 (RH) or F-16 (LH) (terminal No. 2) and ETACS-ECU connector C-304 , C-311 .

NOTE: Before the wiring harness check, check the D-12 , or F-15, F-18 and repair that if necessary.

Q: Is the wiring harness between headlight assembly connector A-56 (position light RH and front side maker RH) or A-37 (position light and front side maker LH) (terminal No. 6),license plate light connector F-07 (RH) or F-03 (LH) (terminal No. 2), or rear side marker light connector F-10 (RH) or F-16 (LH) (terminal No. 2) and ETACS-ECU connector C-304 , C-311 in good condition?

YES : Go to Step 8.

NO : Repair the wiring harness.

STEP 8. Retest the system.

Check that the position light, front side marker light, rear side marker light, or license plate light illuminate normally.

Q: Do the position light, front side marker light, rear side marker light, or license plate light work normally?

YES : The trouble can be an intermittent malfunction (Refer to general (body and chassis) - How to use Troubleshooting/inspection Service Points - How to Cope with Intermittent Malfunction).

NO : Replace the position light socket.

NO : Replace the front side marker light socket.

NO : Replace the license plate light socket.

NO : Replace the rear side maker light socket.
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