B2418

LIGHTING (EXT): LIGHTING SYSTEM: B2417,B2418: Headlight Beam Level Control Motor LH Malfunction
B2418 - Headlight Beam Level Control Motor RH Malfunction

DESCRIPTION

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

WIRING DIAGRAM

INSPECTION PROCEDURE

PROCEDURE

1. PERFORM ACTIVE TEST USING TECHSTREAM

(a) Connect the Techstream to the DLC3.

(b) Turn the engine switch on (IG).

(c) Turn the Techstream on.

(d) Enter the following menus: Body Electrical / AFS / Active Test.

(e) Check that the leveling motors operate.

AFS (AFS ECU)

OK:

Headlight leveling motors operate.

Result:

C -- CHECK HARNESS AND CONNECTOR (HEADLIGHT LEVELING MOTOR - AFS ECU)

B -- REPLACE AFS ECU Components

A -- PROCEED TO NEXT SUSPECTED AREA SHOWN IN PROBLEM SYMPTOMS TABLE Exterior Lighting System

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

(a) Disconnect the B12 and B2 headlight assembly connectors.

(b) Disconnect the A28 AFS ECU connector.

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

Standard Resistance:

LH Side (B2417)

RH Side (B2418)

Text in Illustration

NG -- REPAIR OR REPLACE HARNESS OR CONNECTOR
OK -- Continue to next step.

2. CHECK HARNESS AND CONNECTOR (HEADLIGHT LEVELING MOTOR - HEADLIGHT ASSEMBLY)

(a) Disconnect the headlight leveling motor connector.

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

Standard Resistance:

LH Side

RH Side

Text in Illustration

NG -- REPAIR OR REPLACE HARNESS OR CONNECTOR
OK -- Continue to next step.

3. INSPECT HEADLIGHT LEVELING MOTOR (LH AND/OR RH)

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

Standard Resistance:

RH Side (B2418)

LH Side (B2417)

Text in Illustration

NG -- REPLACE HEADLIGHT LEVELING MOTOR LH OR HEADLIGHT HEADLIGHT LEVELING MOTOR RH Components

OK -- REPLACE AFS ECU Components