Lighting System Headlight Leveling Ecu Power Source Circuit

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

DESCRIPTION

WIRING DIAGRAM

INSPECTION PROCEDURE

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

CHECK HARNESS AND CONNECTOR (HEADLIGHT BEAM LEVEL CONTROL ECU - BODY GROUND)

LIGHTING SYSTEM - Headlight Leveling ECU Power Source Circuit


DESCRIPTION

This circuit detects the state of the ignition switch, and sends it to the headlight beam level control ECU.

WIRING DIAGRAM


Camry. Acv40 Gsv40.Lighting.Lighting System.Lighting System Headlight Leveling Ecu Power Source Circuit


INSPECTION PROCEDURE

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


    Camry. Acv40 Gsv40.Lighting.Lighting System.Lighting System Headlight Leveling Ecu Power Source Circuit

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

  1. Measure the voltage according to the value(s) in the table below.

    Standard voltage:
    Tester Connection
    		Condition
    		Specified Condition
    A20-1 (IG) - Body ground
    		Ignition switch ON
    		10 to 14 V
    A20-1 (IG) - Body ground
    		Ignition switch OFF
    		Below 1 V


NG
REPAIR OR REPLACE HARNESS OR CONNECTOR
OK


2.CHECK HARNESS AND CONNECTOR (HEADLIGHT BEAM LEVEL CONTROL ECU - BODY GROUND)


    Camry. Acv40 Gsv40.Lighting.Lighting System.Lighting System Headlight Leveling Ecu Power Source Circuit

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

    Standard resistance:
    Tester Connection
    		Condition
    		Specified Condition
    A20-9 (E1) - Body ground
    		Always
    		Below 1 Ω


NG
REPAIR OR REPLACE HARNESS OR CONNECTOR
OK

PROCEED TO NEXT CIRCUIT INSPECTION SHOWN IN PROBLEM SYMPTOMS TABLE