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STEP
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INSPECTION
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ACTION
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1
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VERIFY AUTO LEVELING WARNING LIGHT ILLUMINATEION
• Turn the ignition switch to ON position.
• Verify that the auto leveling warning light condition.
• Does the auto leveling warning light illuminate from turning the ignition switch to ON 3 seconds after?
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Yes
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Perform the symptom "No.1 Auto leveling warning light illuminates when the ignition switch turned to ON position" 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 IF MALFUNCTION IS IN AUTO LEVELING SENSOR OR ELSEWHERE
• Is the malfunction appears both side?
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Yes
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Go to Step 5.
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No
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Go to the next step.
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3
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INSPECT IF MALFUNCTION IS IN WIRING HARNESS BETWEEN AUTO LEVELING CONTROL UNIT AND HEADLIGHT LEVELING ACTUATOR
• Inspect for open or short circuit in wiring harness at auto leveling function does not operate.
RH:
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- Auto leveling control unit terminal B-headlight leveling actuator (RH) terminal F
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- Auto leveling control unit terminal T-headlight leveling actuator (RH) terminal H
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- Auto leveling control unit terminal E-headlight leveling actuator (RH) terminal G
LH:
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- Auto leveling control unit terminal B- headlight leveling actuator (LH) terminal F
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- Auto leveling control unit terminal T- headlight leveling actuator (LH) terminal H
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- Auto leveling control unit terminal G- headlight leveling actuator (LH) terminal G
• Is open or short circuit detected?
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Yes
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Repair or replace for open or short circuit.
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No
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Go to the next step.
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4
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INSPECT IF MALFUNCTION IS IN HEADLIGHT LEVELING ACTUATOR OR ELSEWHERE
• Replace the suspected front combination light.
• Does the auto leveling adjust optical axis of the headlights for vehicle posture?
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Yes
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Troubleshooting completed. (Malfunction is in headlight leveling actuator.)
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No
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Replace the auto leveling control unit.
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5
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INSPECT IF MALFUNCTION IS IN WIRING HARNESS BETWEEN AUTO LEVELING CONTROL UNIT AND HEADLIGHT LEVELING ACTUATOR
• Inspect for open or short circuit in wiring harness following:
RH:
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- Auto leveling control unit terminal B-headlight leveling actuator (RH) terminal F
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- Auto leveling control unit terminal T-headlight leveling actuator (RH) terminal H
LH:
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- Auto leveling control unit terminal B-headlight leveling actuator (LH) terminal F
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- Auto leveling control unit terminal T-headlight leveling actuator (LH) terminal H
• Is open or short circuit detected?
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Yes
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Repair or replace for open or short circuit.
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No
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Go to the next step.
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6
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INSPECT FRONT AND REAR AUTO LEVELING SENSOR INSTALLATION
• Inspect front and rear auto leveling sensor installation (bend or damaged of bracket, or dislocated link).
• Are front and rear auto leveling sensor installed properly?
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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 malfunctioning part, or install properly.
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7
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IINSPECT FRONT AUTO LEVELING SENSOR
• Inspect the front auto leveling sensor.
• Is the front auto leveling sensor 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 front auto leveling sensor.
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8
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INSPECT REAR AUTO LEVELING SENSOR
• Inspect the rear auto leveling sensor.
• Is the rear auto leveling sensor 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 rear auto leveling sensor.
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9
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INSPECT IF MALFUNCTION IS IN VEHICLE SPEED SIGNAL LINE OR ELSEWHERE
• Turn the ignition to OFF.
• Disconnect the instrument cluster and auto leveling control unit connectors.
• Verify that the continuity for following:
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- Auto leveling control unit terminal W-ground (normal condition: not continuity)
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- Auto leveling control unit terminal W-DSC HU/CM terminal AA (normal condition: continuity)
• Are there continuity normal?
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Yes
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Replace the auto leveling control unit.
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No
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Repair or replace for open or short circuit.
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