Inspection Procedure J-3

Flasher Timer: The Right or Left Turn-signal Light does not Illuminate.

Turn-signal Light Circuit:

Connectors:

TECHNICAL DESCRIPTION (COMMENT)
If the right or left turn-signal light does not illuminate, their bulb may be defective.

TROUBLESHOOTING HINTS
- Malfunction of the turn-signal light bulb
- Damaged harness wires or connectors

DIAGNOSIS

Required Special Tools:
- MB991223: Test Harness Set

STEP 1. Check the hazard warning light.

Q: Which turn-signal light does not illuminate?
front turn-signal light (LH): Go to Step 2.
front turn-signal light (RH): Go to Step 8.
rear combination light (LH): Go to Step 14.
rear combination light (RH): Go to Step 20.
combination meter (LH): Go to Step 26.
combination meter (RH): Go to Step 28.
Combination meter (both right and left): Go to Step 30.
LH side only : Refer to Inspection Procedure J-1 "Turn-signal lights does not flash when the turn-signal light switch is turned on."
RH side only : Refer to Inspection Procedure J-1 "Turn-signal lights does not flash when the turn-signal light switch is turned on."
Both LH and RH sides : Refer to Inspection Procedure J-2 "Hazard warning light."

STEP 2. Check the front turn-signal light bulb (LH).
1. Remove the front turn-signal (LH) light bulb.
2. Check that the front turn-signal light bulb (LH) is not broken.

Q: Is the front turn-signal (LH) light bulb in good condition?

YES: Go to Step 3.

NO: Replace the front turn-signal (LH) light bulb. Check that the turn-signal lights illuminate normally.




STEP 3. Measure at front combination light (LH) connector A-26 in order to check the ground circuit to the front combination light (LH).
1. Disconnect front combination light (LH) connector A-26, and measure at the wiring harness side.
2. Measure the resistance value between terminal 2 and ground.
- The measured value should be 2 ohm or less.

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

YES: Go to Step 6.

NO: Go to Step 4.




STEP 4. Check front combination light (LH) connector A-26 for damage.

Q: Is front combination light (LH) connector A-26 in good condition?

YES: Go to Step 5.

NO: Repair or replace the connector. Refer to Harness Connector Inspection. Check that the turn-signal lights illuminate normally.




STEP 5. Check the wiring harness between front combination light (LH) connector A-26 and ground.

Q: Is the wiring harness between front combination light (LH) connector A-26 and ground in good condition?

YES: Replace the front combination light socket (LH). Check that the turn-signal lights illuminate normally.

NO: Repair the wiring harness. Check that the turn-signal lights illuminate normally.







STEP 6. Check front combination light (LH) connector A-26 and ETACS-ECU connector C-95 for damage.

Q: Are front combination light (LH) connector A-26 and ETACS-ECU connector C-95 in good condition?

YES: Go to Step 7.

NO: Repair or replace the connector. Refer to Harness Connector Inspection. Check that the turn-signal lights illuminate normally.










STEP 7. Check the wiring harness between front combination light (LH) connector A-26 and ETACS-ECU connector C-95.

NOTE: Also check junction block connector C-88. If junction block connector C-88 is damaged, repair or replace the connector as described in Harness Connector Inspection.

Q: Is the wiring harness between front combination light (LH) connector A-26 and ETACS-ECU connector C-95 in good condition?

YES: Replace the front combination light socket (LH). Check that the turn-signal lights illuminate normally.

NO: Repair the wiring harness. Check that the turn-signal lights illuminate normally.

STEP 8. Check the front turn-signal light bulb (RH).
1. Remove the front turn-signal (RH) light bulb.
2. Check that the front turn-signal light bulb (RH) is not broken.

Q: Is the front turn-signal (RH) light bulb in good condition?

YES: Go to Step 9.

NO: Replace the front turn-signal (RH) light bulb. Check that the turn-signal lights illuminate normally.




STEP 9. Measure at front combination light (RH) connector A-35 in order to check the ground circuit to the front combination light (RH).
1. Disconnect front combination light (RH) connector A-35, and measure at the wiring harness side.
2. Measure the resistance value between terminal 2 and ground.
- The measured value should be 2 ohm or less.

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

YES: Go to Step 12.

NO: Go to Step 10.




STEP 10. Check front combination light (RH) connector A-35 for damage.

Q: Is front combination light (RH) connector A-35 in good condition?

YES: Go to Step 11.

NO: Repair or replace the connector. Refer to Harness Connector Inspection. Check that the turn-signal lights illuminate normally.




STEP 11. Check the wiring harness between front combination light (RH) connector A-35 and ground.

Q: Is the wiring harness between front combination light (RH) connector A-35 and ground in good condition?

YES: Replace the front combination light socket (RH). Check that the turn-signal lights illuminate normally.

NO: Repair the wiring harness. Check that the turn-signal lights illuminate normally.







STEP 12. Check front combination light (RH) connector A-35 and ETACS-ECU connector C-95 for damage.

Q: Are front combination light (RH) connector A-35 and ETACS-ECU connector C-95 in good condition?

YES: Go to Step 13.

NO: Repair or replace the connector. Refer to Harness Connector Inspection. Check that the turn-signal lights illuminate normally.













STEP 13. Check the wiring harness between front combination light (RH) connector A-35 and ETACS-ECU connector C-95.

NOTE: Also check junction block connector C-84 and intermediate connector C-12. If junction block connector C-84 or intermediate connector C-12 is damaged, repair or replace the connector as described in Harness Connector Inspection.

Q: Is the wiring harness between front combination light (RH) connector A-35 and ETACS-ECU connector C-95 in good condition?

YES: Replace the front combination light socket (RH). Check that the turn-signal lights illuminate normally.

NO: Repair the wiring harness. Check that the turn-signal lights illuminate normally.

STEP 14. Check the rear turn-signal light bulb (LH).
1. Remove the rear turn-signal (LH) light bulb.
2. Check that the rear turn-signal light bulb (LH) is not broken.

Q: Is the rear turn-signal (LH) light bulb in good condition?

YES: Go to Step 15.

NO: Replace the rear turn-signal (LH) light bulb. Check that the turn-signal lights illuminate normally.




STEP 15. Measure at rear combination light (LH) connector F-12 in order to check the ground circuit to the rear combination light (LH).
1. Disconnect rear combination light (LH) connector F-12, and measure at the wiring harness side.
2. Measure the resistance value between terminal 5 and ground.
- The measured value should be 2 ohm or less.

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

YES: Go to Step 18.

NO: Go to Step 16.




STEP 16. Check rear combination light (LH) connector F-12 for damage.

Q: Is rear combination light (LH) connector F-12 in good condition?

YES: Go to Step 17.

NO: Repair or replace the connector. Refer to Harness Connector Inspection. Check that the turn-signal lights illuminate normally.




STEP 17. Check the wiring harness between rear combination light (LH) connector F-12 and ground.

Q: Is the wiring harness between rear combination light (LH) connector F-12 and ground in good condition?

YES: Replace the rear combination light socket assembly (LH). Check that the turn-signal lights illuminate normally.

NO: Repair the wiring harness. Check that the turn-signal lights illuminate normally.







STEP 18. Check rear combination light (LH) connector F-12 and ETACS-ECU connector C-95 for damage.

Q: Are rear combination light (LH) connector F-12 and ETACS-ECU connector C-95 in good condition?

YES: Go to Step 19.

NO: Repair or replace the connector. Refer to Harness Connector Inspection. Check that the turn-signal lights illuminate normally.










STEP 19. Check the wiring harness between rear combination light (LH) connector F-12 and ETACS-ECU connector C-95.

NOTE: Also check junction block connector C-77. If junction block connector C-77 is damaged, repair or replace the connector as described in Harness Connector Inspection.

Q: Is the wiring harness between rear combination light (LH) connector F-12 and ETACS-ECU connector C-95 in good condition?

YES: Replace the rear combination light socket assembly (LH). Check that the turn-signal lights illuminate normally.

NO: Repair the wiring harness. Check that the turn-signal lights illuminate normally.

STEP 20. Check the rear turn-signal light bulb (RH).
1. Remove the rear turn-signal (RH) light bulb.
2. Check that the rear turn-signal light bulb (RH) is not broken.

Q: Is the rear turn-signal (RH) light bulb in good condition?

YES: Go to Step 21.

NO: Replace the rear turn-signal (RH) light bulb. Check that the turn-signal lights illuminate normally.




STEP 21. Measure at rear combination light (RH) connector F-10 in order to check the ground circuit to the rear turn-signal light (RH).
1. Disconnect rear combination light (RH) connector F-10, and measure at the wiring harness side.
2. Measure the resistance value between terminal 5 and ground.
- The measured value should be 2 ohm or less.

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

YES: Go to Step 24.

NO: Go to Step 22.




STEP 22. Check rear combination light (RH) connector F-10 for damage.

Q: Is rear combination light (RH) connector F-10 in good condition?

YES: Go to Step 23.

NO: Repair or replace the connector. Refer to Harness Connector Inspection. Check that the turn-signal lights illuminate normally.




STEP 23. Check the wiring harness between rear combination light (RH) connector F-10 and ground.

Q: Is the wiring harness between rear combination light (RH) connector F-10 and ground in good condition?

YES: Replace the rear combination light socket assembly (RH). Check that the turn-signal lights illuminate normally.

NO: Repair the wiring harness. Check that the turn-signal lights illuminate normally.







STEP 24. Check rear combination light (RH) connector F-10 and ETACS-ECU connector C-95 for damage.

Q: Are rear combination light (RH) connector F-10 and ETACS-ECU connector C-95 in good condition?

YES: Go to Step 25.

NO: Repair or replace the connector. Refer to Harness Connector Inspection. Check that the turn-signal lights illuminate normally.













STEP 25. Check the wiring harness between rear combination light (RH) connector F-10 and ETACS-ECU connector C-95.

NOTE: Also check junction block connector C-84 and intermediate connector C-71. If junction block connector C-84 or intermediate connector C-71 is damaged, repair or replace the connector as described in Harness Connector Inspection.

Q: Is the wiring harness between rear combination light (RH) connector F-10 and ETACS-ECU connector C-95 in good condition?

YES: Replace the rear combination light socket assembly (RH). Check that the turn-signal lights illuminate normally.

NO: Repair the wiring harness. Check that the turn-signal lights illuminate normally.







STEP 26. Check combination meter connector C-29 and ETACS-ECU connector C-95 for damage.

Q: Are combination meter connector C-29 and ETACS-ECU connector C-95 in good condition?

YES: Go to Step 27.

NO: Repair or replace the connector. Refer to Harness Connector Inspection. Check that the turn-signal lights illuminate normally.










STEP 27. Check the wiring harness between combination meter connector C-29 and ETACS-ECU connector C-95.

NOTE: Also check junction block connector C-84. If junction block connector C-84 is damaged, repair or replace the connector as described in Harness Connector Inspection.

Q: Is the wiring harness between combination meter connector C-29 and ETACS-ECU connector C-95 in good condition?

YES: Replace the combination meter. Check that the turn-signal lights illuminate normally.

NO: Repair the wiring harness. Check that the turn-signal lights illuminate normally.







STEP 28. Check combination meter connector C-30 and ETACS-ECU connector C-95 for damage.

Q: Are combination meter connector C-30 and ETACS-ECU connector C-95 in good condition?

YES: Go to Step 29.

NO: Repair or replace the connector. Refer to Harness Connector Inspection. Check that the turn-signal lights illuminate normally.










STEP 29. Check the wiring harness between combination meter connector C-30 and ETACS-ECU connector C-95.

NOTE: Also check junction block connector C-84. If junction block connector C-84 is damaged, repair or replace the connector as described in Harness Connector Inspection.

Q: Is the wiring harness between combination meter connector C-30 and ETACS-ECU connector C-95 in good condition?

YES: Replace the combination meter. Check that the turn-signal lights illuminate normally.

NO: Repair the wiring harness. Check that the turn-signal lights illuminate normally.




STEP 30. Check combination meter connector C-29 for damage.

Q: Is combination meter connector C-29 in good condition?

YES: Go to Step 31.

NO: Repair or replace the connector. Refer to Harness Connector Inspection. Check that the turn-signal lights illuminate normally.




STEP 31. Check the wiring harness between combination meter connector C-29 and ground.

Q: Is the wiring harness between combination meter connector C-29 and ground in good condition?

YES: Replace the combination meter. Check that the turn-signal lights illuminate normally.

NO: Repair the wiring harness. Check that the turn-signal lights illuminate normally.