No.1 AFS OFF LIGHT ILLUMINATES CONTINUOUSLY [AFS (ADAPTIVE FRONT LIGHTING SYSTEM)]
id0903h9925200
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1
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AFS OFF LIGHT illuminates continuously
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DESCRIPTION
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The AFS OFF light remains illuminated with the ignition switched ON and the AFS does not operate.
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POSSIBLE CAUSE
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• Constant AFS OFF signal malfunction to the AFS control module.
• Instrument cluster malfunction
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Diagnostic Procedure
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Step |
Inspection |
Action |
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1
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INSPECT IF MALFUNCTION IS IN AFS OFF SWITCH
• Switch the ignition off.
• Disconnect the AFS OFF switch connector.
• Switch the ignition ON.
• Verify that the AFS OFF light illuminates.
• Does the AFS OFF switch illumination turn off after illuminating for several seconds directly after the ignition is switched ON?
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Yes
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Replace the AFS OFF switch.
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No
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Go to the next step.
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2
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INSPECT AFS OFF SWITCH SIGNAL WIRING HARNESS
• Disconnect the AFS control module connector.
• Verify the continuity between AFS OFF switch terminal H (L.H.D.)/B (R.H.D.) and body ground.
• Is there continuity?
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Yes
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Repair for a short circuit to the wiring harness ground between AFS OFF switch terminal H (L.H.D.)/B (R.H.D.) and AFS control module terminal P.
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No
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Go to the next step.
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3
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INSPECT AUTO LEVELING SENSOR SIGNAL CIRCUIT
• Verify the continuity between AFS control module terminal E/G and body ground.
• Is there continuity?
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Yes
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Repair or replace the related wiring harness.
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No
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Go to the next step.
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4
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INSPECT INSTRUMENT CLUSTER
• Turn off the AFS OFF light using the instrument cluster active command modes WL + IL and the M-MDS.
• Does the AFS OFF light turn off with the simulation operation?
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Yes
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Replace the AFS control module.
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No
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Replace the instrument cluster.
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