No.4 AFS OFF INDICATOR LIGHT FLASHES WHEN THE IGNITION IS SWITCHED TO ON [AFS (ADAPTIVE FRONT LIGHTING SYSTEM)]
id0903h9914700
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4
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AFS OFF indicator light flashes when the ignition is switched to ON
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DESCRIPTION
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• The AFS OFF indicator light flashes when the ignition is switched ON.
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POSSIBLE CAUSE
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• Headlight auto leveling function related electrical part malfunction
• AFS OFF indicator light illumination circuit malfunction
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Diagnostic Procedure
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Step |
Inspection |
Action |
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1
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VERIFY DTCs
• Retrieve DTCs from the AFS control module using the M-MDS.
• Is there any DTC present?
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Yes
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Go to applicable DTC troubleshooting procedure.
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No
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Go to the next step.
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2
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INSPECT AUTO LEVELING SENSOR INSTALLATION
• Inspect the auto leveling sensor installation.
• Is there any bending, damage or dislocated links at the bracket?
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Yes
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Repair or replace the malfunctioning part.
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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 CONTROL MODULE POWER SUPPLY VOLTAGE
• Switch the ignition to ON.
• Measure the voltage between AFS control module terminals H and ground.
• Is the voltage B+?
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Yes
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Go to the next step.
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No
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Inspect and repair or replace the malfunctioning part for an open circuit between the ignition switch (push start) and AFS control module terminals H.
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4
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INSPECT AFS CONTROL MODULE GROUND CIRCUIT FOR OPEN CIRCUIT
• Switch the ignition to off.
• Disconnect the AFS control module connector.
• Verify the continuity between the AFS control module wiring harness-side connector terminal F and ground.
• Is there continuity?
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Yes
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Connect the AFS control module connector, then go to the next step.
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No
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Inspect and repair for a loose or poor connection in the AFS control module ground point.
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5
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INSPECT IF MALFUNCTION IS IN AUTO LEVELING SENSOR OR ELSEWHERE
• Turn the headlights on.
• Measure the voltage between AFS control module terminal E and ground.
• Is the voltage 0.4—4.6V?
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Yes
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Go to Step 7.
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No
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Go to the next step.
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6
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INSPECT AUTO LEVELING SENSOR SIGNAL RELATED CIRCUIT
• Inspect for an open or short circuit in the wiring harness between AFS control module terminal E and auto leveling sensor terminal B.
• Is an open or short circuit detected?
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Yes
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Repair or replace the malfunctioning part for an open or short circuit.
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No
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Go to the next step.
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7
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INSPECT AUTO LEVELING SENSOR
• Inspect the auto leveling sensor.
• Is the auto leveling sensor normal?
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Yes
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Repair or replace the malfunctioning part for an open circuit in the following:
• Between AFS control module terminal M and auto leveling sensor terminal C
• Between AFS control module terminal D and auto leveling sensor terminal A
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No
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Replace the auto leveling sensor.
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8
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INSPECT IF MALFUNCTION IS IN COMMUNICATION BETWEEN AFS CONTROL MODULE AND INSTRUMENT CLUSTER OR ELSEWHERE
• Retrieve the DTCs for the AFS control module and the instrument cluster using the M-MDS.
• Are the following DTCs displayed?
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Yes
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Go to the applicable DTC inspection.
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No
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Go to the next step.
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9
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INSPECT IF MALFUNCTION IS IN INSTRUMENT CLUSTER OR AFS CONTROL MODULE
• Inspect the instrument cluster.
• Is the instrument cluster normal?
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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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10
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INSPECT WIRING HARNESS BETWEEN SWIVEL ACTUATOR AND AFS CONTROL MODULE
• Inspect the following wiring harnesses and connectors:
Swivel actuator (RH)
Swivel actuator (LH)
• Is there an open or short circuit, or poor contact?
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Yes
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Repair or replace the malfunctioning part.
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No
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Go to the next step.
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11
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INSPECT IF MALFUNCTION IS IN SWIVEL ACTUATOR OR AFS CONTROL MODULE
• Replace the front combination lights on the left and right separately with a front combination light in which the actuator operates normally.
• Does the AFS OFF indicator light flash after replacing the front combination light on the left or right side?
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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 suspected side front combination light.
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