Dtc B2417 Headlight Beam Level Control Motor Lh Malfunction

Body Electrical. Lexus Gs430, Gs300. Uzs190 Grs190
Lighting. Lexus Gs430, Gs300. Uzs190 Grs190

DESCRIPTION

WIRING DIAGRAM

INSPECTION PROCEDURE

PERFORM ACTIVE TEST USING INTELLIGENT TESTER

CHECK WIRE HARNESS (HEADLIGHT BEAM LEVEL CONTROL MOTOR - AFS ECU)

INSPECT HEADLIGHT LEVELING MOTOR RH

INSPECT HEADLIGHT LEVELING MOTOR LH

DTC B2417 Headlight Beam Level Control Motor LH Malfunction

DTC B2418 Headlight Beam Level Control Motor RH Malfunction


DESCRIPTION

The leveling actuator receives the signal from the AFS ECU to operate. The AFS ECU receives signals regarding the operating conditions of the leveling actuator.

DTC No.
DTC Detection Condition
Trouble Area
B2417
  1. Malfunction in headlight beam level control motor LH
  2. Open or short in headlight beam level control motor LH circuit
  1. Headlight beam level control motor LH
  2. Wire harness or connector
  3. AFS ECU
B2418
  1. Malfunction in headlight beam level control motor RH
  2. Open or short in headlight beam level control motor RH circuit
  1. Headlight beam level control motor RH
  2. Wire harness or connector
  3. AFS ECU

WIRING DIAGRAM


Lexus Gs430, Gs300. Uzs190 Grs190.Lighting.Lighting System. Dtc B2417 Headlight Beam Level Control Motor Lh Malfunction


INSPECTION PROCEDURE

1.PERFORM ACTIVE TEST USING INTELLIGENT TESTER

  1. Connect the intelligent tester to the DLC3.

  1. Turn the engine switch on (IG) and turn the intelligent tester main switch on.

  1. Select the item below in the Active Test and then check the motor operation.

    AFS ECU:

    Item
    		Test Details
    		Diagnostic Note
    Drive The Leveling Motor
    		Drive the leveling motor UP / OFF (OFF)
    		-
    Drive The Leveling Motor
    		Drive the leveling motor DOWN / OFF (OFF)
    		-
    OK:
    Headlight beam leveling control actuator is operated.

    Result
    OK (When checking from PROBLEM SYMPTOMS TABLE)
    		A
    OK (When checking from DIAGNOSTIC TROUBLE CODE CHART)
    		B
    NG
    		C


B
REPLACE AFS ECU

C
Go to step 2
A

PROCEED TO NEXT CIRCUIT INSPECTION SHOWN IN PROBLEM SYMPTOMS TABLE

2.CHECK WIRE HARNESS (HEADLIGHT BEAM LEVEL CONTROL MOTOR - AFS ECU)

Lexus Gs430, Gs300. Uzs190 Grs190.Lighting.Lighting System. Dtc B2417 Headlight Beam Level Control Motor Lh Malfunction

  1. Disconnect the B11 and B2 headlight assembly connectors.

  1. Disconnect the A30 AFS ECU connector.

  1. Measure the resistance of the wire harness side connectors.

    Standard resistance:

    LH side (B2417)
    Tester Connection
    		Condition
    		Specified Condition
    A30-29(LL1+) - B11-15(LL1+)
    		Always
    		Below 1 Ω
    A30-30(LL1-) - B11-14(LL1-)
    		Always
    		Below 1 Ω
    A30-31(LL2+) - B11-13(LL2+)
    		Always
    		Below 1 Ω
    A30-32(LL2-) - B11-12(LL2-)
    		Always
    		Below 1 Ω
    A30-29(LL1+) - Body ground
    		Always
    		10 kΩ or higher
    A30-30(LL1-) - Body ground
    		Always
    		10 kΩ or higher
    A30-31(LL2+) - Body ground
    		Always
    		10 kΩ or higher
    A30-32(LL2-) - Body ground
    		Always
    		10 kΩ or higher

    RH side (B2418):

    Tester Connection
    		Condition
    		Specified Condition
    A30-13(LR1+) - B2-15(LR1+)
    		Always
    		Below 1 Ω
    A30-14(LR1-) - B2-14(LR1-)
    		Always
    		Below 1 Ω
    A30-15(LR2+) - B2-13(LR2+)
    		Always
    		Below 1 Ω
    A30-16(LR2-) - B2-12(LR2-)
    		Always
    		Below 1 Ω
    A30-13(LR1+) - Body ground
    		Always
    		10 kΩ or higher
    A30-14(LR1-) - Body ground
    		Always
    		10 kΩ or higher
    A30-15(LR2+) - Body ground
    		Always
    		10 kΩ or higher
    A30-16(LR2-) - Body ground
    		Always
    		10 kΩ or higher


NG
REPAIR OR REPLACE HARNESS AND CONNECTOR
OK


3.INSPECT HEADLIGHT LEVELING MOTOR RH
Lexus Gs430, Gs300. Uzs190 Grs190.Lighting.Lighting System. Dtc B2417 Headlight Beam Level Control Motor Lh Malfunction

  1. Measure the resistance of the connector.

    Standard resistance:
    RH side (B2418)
    Tester Connection
    		Condition
    		Specified Condition
    1 - 2
    		Always
    		5.8 to 12.5 Ω
    3 - 4
    		Always
    		5.8 to 12.5 Ω

    Result
    OK (When checking from DIAGNOSTIC TROUBLE CODE CHART)
    		A
    OK (When checking from PROBLEM SYMPTOMS TABLE)
    		B
    NG
    		C


B
PROCEED TO NEXT CIRCUIT INSPECTION SHOWN IN PROBLEM SYMPTOMS TABLE

C
REPLACE HEADLIGHT ASSEMBLY RH
A


4.INSPECT HEADLIGHT LEVELING MOTOR LH
Lexus Gs430, Gs300. Uzs190 Grs190.Lighting.Lighting System. Dtc B2417 Headlight Beam Level Control Motor Lh Malfunction

  1. Measure the resistance of the connector.

    Standard resistance:
    LH side (B2417)
    Tester Connection
    		Condition
    		Specified Condition
    1 - 2
    		Always
    		5.8 to 12.5 Ω
    3 - 4
    		Always
    		5.8 to 12.5 Ω

    Result
    OK (When checking from DIAGNOSTIC TROUBLE CODE CHART)
    		A
    OK (When checking from PROBLEM SYMPTOMS TABLE)
    		B
    NG
    		C


B
PROCEED TO NEXT CIRCUIT INSPECTION SHOWN IN PROBLEM SYMPTOMS TABLE

C
REPLACE HEADLIGHT ASSEMBLY LH
A

REPLACE AFS ECU