No.1 AUTO LEVELING WARNING LIGHT ILLUMINATES WHEN THE IGNITION IS SWITCHED TO ON [HEADLIGHT AUTO LEVELING SYSTEM]
id0903d0913700
1
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Auto leveling warning light illuminates when the ignition is switched to ON
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DESCRIPTION
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The auto leveling warning light remains illuminated 3 seconds or more after the ignition is turned to ON.
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POSSIBLE CAUSE
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• Headlight auto leveling function related electrical part the malfunction
• Auto leveling warning light control circuit the malfunction
• CAN signal wiring harness malfunction (does not receive vehicle speed signal)
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Diagnostic Procedure
STEP |
INSPECTION |
ACTION |
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1
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CONFIRM HEADLIGHT AUTO LEVELING SYSTEM DTC
• Retrieve the headlight auto leveling system DTCs.
• Are any DTCs present?
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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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2
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INSPECT AUTO LEVELING CONTROL MODULE POWER SUPPLY VOLTAGE
• Switch the ignition to ON.
• Measure the voltage between auto leveling control module terminal H and GND.
• 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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Repair or replace for open circuit between the ignition switch and auto leveling control module terminal H.
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3
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INSPECT AUTO LEVELING CONTROL MODULE GND CIRCUIT FOR OPEN
• Switch the ignition to off.
• Disconnect the auto leveling control module connector.
• Verify that continuity between auto leveling control module terminal F and GND.
• Is there continuity?
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Yes
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Connector the auto leveling control module connector, then go to Step 5.
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No
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Go to the next step.
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4
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INSPECT GND POINT
• Verify that the GND point for auto leveling control module.
• Is there loose or poor connection at GND point?
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Yes
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Retighten the GND point.
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No
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Repair or replace for open circuit between auto leveling control module terminal F and GND.
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5
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INSPECT IF MALFUNCTION CAUSE IS INSTRUMENT CLUSTER OR ELSEWHERE
• Turn on and off all the indicator lights and warning lights in the instrument cluster using the M-MDS simulation function WL+IL.
• Does the auto leveling warning light turn on and off according to 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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6
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VERIFY IF MALFUNCTION IS NO VEHICLE SPEED SIGNAL OR ELSEWHERE
• Verify that the speedometer indication.
• Does the speedometer indicate properly?
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Yes
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Go to the next step.
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No
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Perform the instrument cluster symptom troubleshooting “No.7 Speedometer indication is defective” procedure.
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7
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VERIFY IF MALFUNCTION IS CAN COMMUNICATION OR AUTO LEVELING CONTROL MODULE
• Inspect the DTC for the instrument cluster ON-BOARD DIACNOSTIC SYSTEM.
• Have any CAN communication related DTCs been recorded in memory?
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Yes
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Go to the appropriate DTC inspection.
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No
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Replace the auto leveling control module.
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