DTC    B2417    Headlight Beam Level Control Motor LH Malfunction

DTC    B2418    Headlight Beam Level Control Motor RH Malfunction

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DESCRIPTION

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

DTC No.
DTC Detecting Condition
Trouble Area
B2417
  1. Malfunction of headlight beam level control motor LH
  2. Open or short of headlight beam level control motor LH circuit
  1. Headlight beam level control motor LH
  2. Harness or connector
  3. AFS ECU
B2418
  1. Malfunction of headlight beam level control motor RH
  2. Open or short of headlight beam level control motor RH circuit
  1. Headlight beam level control motor RH
  2. Harness or connector
  3. AFS ECU

WIRING DIAGRAM


B110591E02


INSPECTION PROCEDURE

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


    B110639E04

  1. Disconnect the headlight connector of headlight beam level control motor side and AFS ECU connector.

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

    Resistance:
    LH Side (B2417):
    Tester connection
    		Condition
    		Specified condition
    LL2+ (H3-1) - LL2+ (A18-31)
    		Always
    		Below 1 Ω
    LL2- (H3-2) - LL2- (A18-32)
    		Always
    		Below 1 Ω
    LL1+ (H3-3) - LL1+ (A18-29)
    		Always
    		Below 1 Ω
    LL1- (H3-4) - LL1- (A18-30)
    		Always
    		Below 1 Ω
    LL1+ (A18-29) - Body ground
    		Always
    		10 kΩ or higher
    LL1- (A18-30) - Body ground
    		Always
    		10 kΩ or higher
    LL2+ (A18-31) - Body ground
    		Always
    		10 kΩ or higher
    LL2- (A18-32) - Body ground
    		Always
    		10 kΩ or higher
    LH Side (B2418):
    Tester connection
    		Condition
    		Specified condition
    LR2+ (H4-1) - LR2+ (A18-15)
    		Always
    		Below 1 Ω
    LR2- (H4-2) - LR2- (A18-16)
    		Always
    		Below 1 Ω
    LR1+ (H4-3) - LR1+ (A18-13)
    		Always
    		Below 1 Ω
    LR1- (H4-4) - LR1- (A18-14)
    		Always
    		Below 1 Ω
    LR1+ (A18-13) - Body ground
    		Always
    		10 kΩ or higher
    LR1- (A18-14) - Body ground
    		Always
    		10 kΩ or higher
    LR2+ (A18-15) - Body ground
    		Always
    		10 kΩ or higher
    LR2- (A18-16) - Body ground
    		Always
    		10 kΩ or higher



NG
REPAIR OR REPLACE HARNESS OR CONNECTOR
OK


2.INSPECT HEADLIGHT BEAM LEVEL CONTROL MOTOR
E069131E02

  1. Disconnect the headlight connector of headlight beam level control motor side.

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

    Resistance:
    LH Side (B2417):
    Tester connection
    		Condition
    		Specified condition
    LL2+ (1) - LL2- (2)
    		Always
    		5.8 to 12.5 Ω
    LL1+ (3) - LL1- (4)
    		Always
    		5.8 to 12.5 Ω
    RH Side (B2418):
    Tester connection
    		Condition
    		Specified condition
    LR2+ (1) - LR2- (2)
    		Always
    		5.8 to 12.5 Ω
    LR1+ (3) - LR1- (4)
    		Always
    		5.8 to 12.5 Ω

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



B
PROCEED TO NEXT CIRCUIT INSPECTION SHOWN IN PROBLEM SYMPTOMS TABLE

C
REPLACE HEADLIGHT BEAM LEVEL CONTROL MOTOR
A

REPLACE AFS ECU