DTC    B2412    Headlight Swivel Motor LH Malfunction

DTC    B2413    Headlight Swivel Motor RH Malfunction

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DESCRIPTION

The swivel actuator receives the signal from the AFS ECU via the headlight swivel ECU to operate and sends the signal regarding direction of the headlight and condition of the headlight swivel motor to the headlight swivel ECU.

DTC No.
DTC Detecting Condition
Trouble Area
B2412
  1. Malfunction of headlight swivel motor LH
  2. Open or short in headlight swivel motor LH circuit
  1. Headlight swivel motor LH
  2. Headlight swivel ECU LH
  3. Harness or connector
  4. AFS ECU
B2413
  1. Malfunction of headlight swivel motor RH
  2. Open or short in headlight swivel motor RH circuit
  1. Headlight swivel motor RH
  2. Headlight swivel ECU RH
  3. Harness or connector
  4. AFS ECU

WIRING DIAGRAM


B110587E02


INSPECTION PROCEDURE

1.CHECK HARNESS AND CONNECTOR (HEADLIGHT SWIVEL ECU - HEADLIGHT SWIVEL MOTOR)


    B110643E02

  1. Disconnect the headlight swivel ECU connector and headlight swivel motor connector.

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

    Resistance:
    LH Side (B2412):
    Tester connection
    		Condition
    		Specified condition
    U (H7-a-2) - U-OUT (H7-b-3)
    		Always
    		Below 1 Ω
    W (H7-a-3) - W-OUT (H7-b-5)
    		Always
    		Below 1 Ω
    GND (H7-a-4) - GND (H7-b-2)
    		Always
    		Below 1 Ω
    MOTOR V (H7-a-6) - MOTOR-V (H7-b-7)
    		Always
    		Below 1 Ω
    V (H7-a-8) - V-OUT (H7-b-4)
    		Always
    		Below 1 Ω
    5V (H7-a-9) - 5V (H7-b-1)
    		Always
    		Below 1 Ω
    MOTOR U (H7-a-11) - MOTOR-U (H7-b-6)
    		Always
    		Below 1 Ω
    MOTOR W (H7-a-12) - MOTOR-W (H7-b-8)
    		Always
    		Below 1 Ω
    RH Side (B2413):
    Tester connection
    		Condition
    		Specified condition
    U (H10-a-2) - U-OUT (H10-b-3)
    		Always
    		Below 1 Ω
    W (H10-a-3) - W-OUT (H10-b-5)
    		Always
    		Below 1 Ω
    GND (H10-a-4) - GND (H10-b-2)
    		Always
    		Below 1 Ω
    MOTOR V (H10-a-6) - MOTOR- V (H10-b-7)
    		Always
    		Below 1 Ω
    V (H10-a-8) - V-OUT (H10-b-4)
    		Always
    		Below 1 Ω
    5V (H10-a-9) - 5V (H10-b-1)
    		Always
    		Below 1 Ω
    MOTOR U (H10-a-11) - MOTOR-U (H10-b-6)
    		Always
    		Below 1 Ω
    MOTOR W (H10-a-12) - MOTOR-W (H10-b-8)
    		Always
    		Below 1 Ω



NG
REPAIR OR REPLACE HARNESS OR CONNECTOR
OK


2.INSPECT HEADLIGHT SWIVEL MOTOR


    B110644E03

  1. Disconnect the headlight swivel motor connector.

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

    Resistance:
    LH Side (B2412):
    Tester connection
    		Condition
    		Specified condition
    MOTOR-U (H7-b-6) - MOTOR-V (H7-b-7)
    		Always
    		8.5 to 10.5 Ω
    MOTOR-V (H7-b-7) - MOTOR-W (H7-b-8)
    		Always
    		8.5 to 10.5 Ω
    MOTOR-W (H7-b-8) - MOTOR-U (H7-b-6)
    		Always
    		8.5 to 10.5 Ω
    RH Side (B2413):
    Tester connection
    		Condition
    		Specified condition
    MOTOR-U (H10-b-6) - MOTOR-V (H10-b-7)
    		Always
    		8.5 to 10.5 Ω
    MOTOR-V (H10-b-7) - MOTOR-W (H10-b-8)
    		Always
    		8.5 to 10.5 Ω
    MOTOR-W (H10-b-8) - MOTOR-U (H10-b-6)
    		Always
    		8.5 to 10.5 Ω



NG
REPLACE HEADLIGHT SWIVEL MOTOR
OK


3.INSPECT HEADLIGHT SWIVEL ECU


    B110645E02

  1. Disconnect the headlight swivel motor connector.

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

    Voltage:
    LH Side (B2412):
    Tester connection
    		Condition
    		Specified condition
    5V (H7-b-1) - GND (H7-b-2)
    		Ignition switch OFF → ON
    		Below 1 V → 4.5 to 5.5 V
    RH Side (B2413):
    Tester connection
    		Condition
    		Specified condition
    5V (H10-b-1) - GND (H10-b-2)
    		Ignition switch OFF → ON
    		Below 1 V → 4.5 to 5.5 V

    Result:
    Condition
    		Proceed to
    OK
    		A
    NG (When checking from the PROBLEM SYMPTOMS TABLE)
    		B
    NG (When checking from the DTC)
    		C



B
PROCEED TO NEXT CIRCUIT INSPECTION SHOWN IN PROBLEM SYMPTOMS TABLE

C
REPLACE HEADLIGHT SWIVEL ECU
A


4.REPLACE HEADLIGHT SWIVEL MOTOR

OK:
Returns to normal operation.



NG
Go to step 5
OK

END 

5.REPLACE HEADLIGHT SWIVEL ECU

OK:
Returns to normal operation.



NG
REPLACE AFS ECU
OK

END