AUTOMATIC HEADLIGHT BEAM LEVEL CONTROL SYSTEM INITIALIZATION

  1. HEIGHT CONTROL SENSOR SIGNAL INITIALIZATION

    Note:

    • Initialize the height control sensor signal after the vehicle height changes due to replacement of the suspension or after performing such operations as removal and reinstallation or replacement of the rear height control sensor.

    • Initialization is also necessary when the headlight leveling ECU is replaced.

    • Adjust the headlight aim after initializing the headlight leveling ECU.

      Click here

    • When a malfunction is detected in the automatic headlight beam level control system, the height control sensor signal initialization is impossible. Perform troubleshooting before initialization.

  2. 1. PREPARE VEHICLE FOR INITIALIZATION

    1. Unload the trunk and vehicle, and make sure that the spare tire, tools and jack are in their original positions.

    2. Check that there are no occupants in the vehicle.

    3. Turn off the headlights.

    4. Stop the vehicle on a level surface and keep the vehicle height unchanged.

  3. 2. CHECK WARNING LIGHT

    1. E270844C01

      *a

      Headlight Beam Level Control System Warning Light

      Turn the power switch on (IG) and check the headlight beam level control system warning light.

      OK

      Condition

      Specified Condition

      The headlight leveling ECU is replaced with a new one.

      Warning light continuously blinks 6 times at 2 Hz.

      Removal and reinstallation of the headlight leveling ECU, replacement of the rear height control sensor, removal and reinstallation of the rear height control sensor, replacement of the suspension, etc.

      Warning light comes on for approximately 3 seconds, and then turns off (bulb check function).
      Tip:

      If the warning light does not come on when turning the power switch on (IG), perform inspections and repairs according to "Problem Symptoms Table".

      Click here

  4. 3. INITIALIZATION

    09843-18040

    1. C166029C56

      *a

      Front view of DLC3

      Connect terminals 4 (CG) and 8 (LVL) of the DLC3 using SST.

    2. E341377C02

      *a

      Fuel Receiver Gauge

      Turn the low beam headlights on and off using the light control switch within 20 seconds after connecting the terminals.

      Tip:

      The number of times the low beam headlights need to be turned on and off is determined by the present fuel level as shown below.

      Fuel Level

      Number of Times to Turn Low Beam Headlights on and off

      Fuel level is within range A.

      1

      Fuel level is within range B.

      2

      Fuel level is within range C.

      3

      Fuel level is within range D.

      4

      Fuel level is within range E.

      5
      Note:

      • Turn the low beam headlights on and off at approximately 3-second intervals.

      • Be sure to operate the headlight dimmer switch from the outside of the vehicle.

    3. Check the warning light.

      OK

      Condition

      Specified Condition

      The headlight leveling ECU is replaced with a new one.

      Blinks 6 times at 2 Hz → Blinks 3 times at 2 Hz, and then turns off.

      Removal and reinstallation of the headlight leveling ECU, replacement of the rear height control sensor, removal and reinstallation of the rear height control sensor, replacement of the suspension, etc.

      Off → Blinks 3 times at 2 Hz, and then turns off.
      Tip:

      • If the calculated vehicle height is not within the acceptable range, the rear height control sensor initialization will end as an abnormal termination, and the warning light will blink 6 times at 2 Hz continuously. Disconnect SST from the DLC3 and turn the power switch off. Then restart from "Check Warning Light".

      • If initialization cannot be finished normally, check the LVL terminal circuit (Click here), or perform inspections and repairs according to "Problem Symptoms Table" (Click here).