Description

Headlight auto leveling system initialization error

Detection condition

• Headlight auto leveling system initialization is not performed with the ignition switched ON (engine off or on).

Fail-safe

• The headlight leveling actuator is stopped at the position when the malfunction is determined.

Possible cause

• Headlight auto leveling system initialization error

• Auto leveling control module malfunction

System wiring diagram

Not applicable

Step

Inspection

Action

1

• Perform headlight auto leveling system initialization.

  (See HEADLIGHT AUTO LEVELING SYSTEM INITIALIZATION.)

• Clear the auto leveling control module DTCs using the M-MDS.

  (See CLEARING DTC [AUTO LEVELING CONTROL MODULE].)

• Retrieve the auto leveling control module DTCs using the M-MDS.

  (See DTC INSPECTION [AUTO LEVELING CONTROL MODULE].)

• Is the same DTC displayed?

Yes

Perform the headlight auto leveling system initialization again, then go to the next step.

(See HEADLIGHT AUTO LEVELING SYSTEM INITIALIZATION.)

No

Go to Step 3.

2

• Clear the auto leveling control module DTCs using the M-MDS.

  (See CLEARING DTC [AUTO LEVELING CONTROL MODULE].)

• Retrieve the auto leveling control module DTCs using the M-MDS.

  (See DTC INSPECTION [AUTO LEVELING CONTROL MODULE].)

• Is the same DTC displayed?

Yes

Replace the auto leveling control module, then go to the next step.

(See AUTO LEVELING CONTROL MODULE REMOVAL/INSTALLATION.)

No

Go to the next step.

3

• Are any other DTCs displayed?

Yes

Repair the malfunctioning part according to the applicable DTC troubleshooting.

(See DTC TABLE [AUTO LEVELING CONTROL MODULE].)

No

DTC troubleshooting completed.