No.3 AFS (ADAPTIVE FRONT LIGHTING SYSTEM) OPERATES WHEN OPERATING AFS OFF SWITCH [AFS (ADAPTIVE FRONT LIGHTING SYSTEM)]
id0903h9913600
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3
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AFS (adaptive front lighting system) operates when operating AFS OFF switch
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DESCRIPTION
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The AFS operates while the AFS OFF switch is off.
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POSSIBLE CAUSE
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• AFS OFF signal error to AFS control module
• AFS control module 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 AFS OFF SWITCH
• Switch the ignition ON.
• Turn the AFS OFF switch on and off.
• Does the AFS OFF light illumination change in accordance with the switch operation?
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Yes
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Go to the next step.
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No
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Turn off the AFS OFF light using the instrument cluster active command modes WL + IL and the M-MDS.
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2
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INSPECT IF MALFUNCTION IS AFS CONTROL MODULE
• Disconnect the AFS control module connector.
• Verify that there is continuity between the AFS control module wiring harness-side terminal P and body ground.
• Is there continuity when the AFS OFF switch is on?
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Yes
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Inspect the AFS control module terminal P connection condition.
If a malfunction is detected, repair or replace the terminal.
If a malfunction is not detected, replace the AFS control module.
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No
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Go to the next step.
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3
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INSPECT AFS OFF SWITCH SIGNAL WIRING HARNESS
• Disconnect the AFS OFF switch connector.
• Verify the continuity between the AFS OFF switch terminal H (L.H.D.)/B (R.H.D.) and AFS control module terminal P.
• Is there continuity?
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Yes
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Go to the next step.
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No
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Repair or replace the malfunctioning location.
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4
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INSPECT AFS OFF SWITCH
• Inspect the AFS OFF switch.
• Is the AFS OFF switch normal?
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Yes
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Inspect the following and repair or replace the malfunctioning location.
• AFS OFF switch terminal K to body ground
• Looseness, lifting at ground points
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No
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Replace the AFS switch.
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