[54E] SMART WIRING SYSTEM (SWS) USING SWS MONITOR <Except for Hong Kong spec.> - - SYMPTOM PROCEDURES - HEADLAMP AND TAIL LAMP - INSPECTION PROCEDURE L-8: Either of the headlamps or high-beam indicator lamps does not illuminate. | PRINT PAGE / INDEX / PRIOR / NEXT

INSPECTION PROCEDURE L-8: Either of the headlamps or high-beam indicator lamps does not illuminate.
| CAUTION Whenever the ECU is replaced, ensure that the input and output signal circuits are normal.
| COMMENTS ON TROUBLE SYMPTOM If any of the headlamps do not illuminate, the wiring harness connector(s), the bulb or the fuse may be defective or burned out.
| POSSIBLE CAUSES Malfunction of the headlamp bulbs Malfunction of the high-beam indicator bulb Damaged harness wires and connectors
| DIAGNOSIS PROCEDURE
| Step 1. Connector check: A-30 <low-beam, RH>, A-43 <high-beam, RH>, A-15 <low-beam, LH> or A-39 <high-beam, LH> headlamp connector or C-05 <high-beam indicator> combination meter connector Q: Is the check result normal? YES: Go to Step 2. NO: Repair the defective connector.
| Step 2. Check the bulb(s) of the headlamps or the high-beam indicator lamp. Check the bulb(s) of the defective lamp. Q: Is the check result normal? YES: Go to Step 3. NO: Replace the bulb(s) of the defective lamp.
| Step 3. Measure the resistance at A-30 <low-beam, RH>, A-43 <high-beam, RH>, A-15 <low-beam, LH> or A-39 <high-beam, LH> headlamp connector or C-05 <high-beam indicator> combination meter connector. Disconnect the connector, and measure at the wiring harness side. Check the resistance between the lamp connector and body earth. Resistance between A-15 <low-beam, left> headlamp connector terminal No.3 and body earth Resistance between A-39 <high-beam, left> headlamp connector terminal No.2 and body earth Resistance between A-30 <low-beam, right> headlamp connector terminal No.3 and body earth Resistance between A-43 <high-beam, right> headlamp connector terminal No.2 and body earth Resistance between C-05 <high-beam indicator lamp> combination meter connector terminal No.8 and body earth OK: 2 Ω or less Q: Is the check result normal? YES: Go to Step 5. NO: Go to Step 4.
| Step 4. Check the wiring harness from A-30 <low-beam, RH>, A-15 <low-beam, LH> headlamp connector terminal No.3 or A-43 <high-beam, RH>, A-39 <high-beam, LH> headlamp connector terminal No.2 or C-05 combination meter connector terminal No.8 <high-beam indicator lamp> to body earth. NOTE: Prior to the wiring harness inspection, check intermediate connector C-116 <high-beam indicator [2400 (4G64) or 2400 (4G69-vehicles for Argentina)]>, and repair if necessary. Check the earth wires for open circuit. Q: Is the check result normal? YES: Go to Step 7. NO: Repair the wiring harness.
| Step 5. Connector check: A-11X front-ECU connector Q: Is the check result normal? YES: Go to Step 6. NO: Repair the defective connector.
| Step 6. Check the wiring harness from A-30 <low-beam, RH>, A-15 <low-beam, LH> headlamp connector terminal No.2 or A-43 <high-beam, RH>, A-39 <high-beam, LH> headlamp connector terminal No.1 or C-05 combination meter connector terminal No.9 <high-beam indicator lamp> to A-11X front-ECU connector terminal No.6 <low-beam> or No.10 <high-beam or high-beam indicator lamp>. NOTE: Prior to the wiring harness inspection, check intermediate connector C-116 <high-beam indicator>, and repair if necessary. Check the output lines for open circuit. Q: Is the check result normal? YES: Go to Step 7. NO: Repair the wiring harness.
| Step 7. Retest the system. Check that the headlamps and the high-beam indicator lamp illuminate/extinguish normally. Q: Is the check result normal? The lamps illuminate normally at both high and low beams.: The trouble can be an intermittent malfunction (Refer to GROUP 00 - How to Cope with Intermittent Malfunction ). When the headlamps do not illuminate: Replace the headlamp socket. When the high-beam indicator lamp does not illuminate: Replace the combination meter.

[54E] SMART WIRING SYSTEM (SWS) USING SWS MONITOR <Except for Hong Kong spec.> - - SYMPTOM PROCEDURES - HEADLAMP AND TAIL LAMP - INSPECTION PROCEDURE L-8: Either of the headlamps or high-beam indicator lamps does not illuminate. | PRINT PAGE / INDEX / PRIOR / NEXT

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