Lighting System Headlight Beam Level Control Actuator Circuit

Body Electrical. Camry. Acv40 Gsv40
Lighting. Camry. Acv40 Gsv40

DESCRIPTION

WIRING DIAGRAM

INSPECTION PROCEDURE

CHECK HARNESS AND CONNECTOR (HEADLIGHT LEVELING MOTOR - HEADLIGHT BEAM LEVEL CONTROL ECU)

LIGHTING SYSTEM - Headlight Beam Level Control Actuator Circuit


DESCRIPTION

The headlight beam level control ECU actuates the headlight leveling motor according to the vehicle conditions.

WIRING DIAGRAM


Camry. Acv40 Gsv40.Lighting.Lighting System.Lighting System  Headlight Beam Level Control Actuator Circuit


INSPECTION PROCEDURE

1.CHECK HARNESS AND CONNECTOR (HEADLIGHT LEVELING MOTOR - HEADLIGHT BEAM LEVEL CONTROL ECU)


  1. Check the harness and connector between the headlight beam level control ECU and headlight leveling motor LH.



      Camry. Acv40 Gsv40.Lighting.Lighting System.Lighting System  Headlight Beam Level Control Actuator Circuit
    1. Disconnect the A12 headlight leveling motor LH connector.

    2. Disconnect the A20 headlight beam level control ECU connector.

    3. Measure the resistance according to the value(s) in the table below.

      Standard resistance:
      Tester Connection
      Condition
      Specified Condition
      A20-11 (LH+) - A12-3 (LHB1)
      Always
      Below 1 Ω
      A20-24 (LH-) - A12-1 (LHE)
      Always
      Below 1 Ω
      A20-18 (LHE) - A12-2 (LHM+)
      Always
      Below 1 Ω
      A20-11 (LH+) - Body ground
      Always
      10 kΩ or higher
      A20-24 (LH-) - Body ground
      Always
      10 kΩ or higher
      A20-18 (LHE) - Body ground
      Always
      10 kΩ or higher


  1. Check the harness and connector between the headlight beam level control ECU and headlight leveling motor RH.



      Camry. Acv40 Gsv40.Lighting.Lighting System.Lighting System  Headlight Beam Level Control Actuator Circuit
    1. Disconnect the A33 headlight leveling motor RH connector.

    2. Disconnect the A20 headlight beam level control ECU connector.

    3. Measure the resistance according to the value(s) in the table below.

      Standard resistance:
      Tester Connection
      Condition
      Specified Condition
      A20-10 (RH+) - A33-3 (RHB1)
      Always
      Below 1 Ω
      A20-23 (RH-) - A33-1 (RHE)
      Always
      Below 1 Ω
      A20-17 (RHE) - A33-2 (RHM+)
      Always
      Below 1 Ω
      A20-10 (RH+) - Body ground
      Always
      10 kΩ or higher
      A20-23 (RH-) - Body ground
      Always
      10 kΩ or higher
      A20-17 (RHE) - Body ground
      Always
      10 kΩ or higher


NG
REPAIR OR REPLACE HARNESS OR CONNECTOR
OK

PROCEED TO NEXT CIRCUIT INSPECTION SHOWN IN PROBLEM SYMPTOMS TABLE