No.3 AFS OPERATES (BENDING LIGHT ILLUMINATES) WHEN AFS OFF SWITCH IS TURNED TO OFF [AFS (ADAPTABLE FRONT LIGHTING SYSTEM)]
id0903c6912300
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AFS operates (light-bending illuminates) when AFS OFF switch is turned off. |
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DESCRIPTION
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• AFS operates (light-bending illuminates) while the AFS OFF switch is off (operation stopped)
• AFS operates (light-bending illuminates) while the headlights one in a position other than low.
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POSSIBLE CAUSE
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• Headlight low beam signal
• AFS control module does not receive AFS OFF signal
• AFS control module malfunction
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Diagnostic procedure
STEP |
INSPECTION |
ACTION |
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1
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INSPECT HEADLIGHT LOW BEAM SIGNAL CIRCUIT FOR SHORT TO GROUND
• Turn the light switch to OFF.
• Disconnect the AFS control module connector.
• Remove the headlight low relay from main fuse box.
• Verify continuity between AFS control module wiring harness-side connector terminal F and body ground.
• Is there any continuity?
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Yes
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Repair short to ground.
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No
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Go to the next step.
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2
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INSPECT IF MALFUNCTION IS IN INSTRUMENT CLUSTER OR ELSEWHERE
• Connect the M-MDS to DLC-2.
• Select the active command "WL+IL" using the M-MDS and turn on the warning light in the instrument cluster.
• Does the AFS OFF light illuminate and turn off according to the simulation function?
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Yes
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Go to the next step.
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No
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Replace the instrument cluster.
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3
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INSPECT IF MALFUNCTION IS IN AFS CONTROL MODULE OR ELSEWHERE
• Switch the ignition to off.
• Disconnect the AFS control module connector.
• Turn the AFS OFF switch on.
• Verify the continuity between the AFS control module wiring harness-side connector terminal P and body ground.
• Is there continuity?
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Yes
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Inspect the pin connection of AFS control module terminal P.
If a poor connection is detected, repair or replace the suspect part.
If the pin connection is normal, replace the AFS control module.
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No
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Go to the next step.
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4
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INSPECT AFS OFF SWITCH SIGNAL CIRCUIT FOR OPEN CIRCUIT
• Switch the ignition to off.
• Disconnect the AFS OFF switch connector and AFS control module connector.
• Verify the continuity between 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 part for an open circuit.
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5
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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 for the following and repair or replace the malfunctioning part.
• Wiring harness between the AFS OFF switch terminal K and body ground
• Loose or poor connection in the ground point
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No
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Replace the AFS OFF switch.
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