B2417

LIGHTING: LIGHTING SYSTEM: B2417: Headlight Beam Level Control Motor LH Malfunction

DTC B2417 - Headlight Beam Level Control Motor LH Malfunction

DTC 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 a signal indicating the operating conditions of the headlight leveling motor.






WIRING DIAGRAM





INSPECTION PROCEDURE

PROCEDURE

1. PERFORM ACTIVE TEST USING TECHSTREAM
(a) Connect Techstream to the DLC3.
(b) Turn the engine switch on (IG).
(c) Turn Techstream on.
(d) Select the following menu items: Body Electrical / AFS / Active Test.
(e) Check that the motors operate.

AFS:





OK:
Headlight leveling motors operate normally.
NG -- CHECK HARNESS AND CONNECTOR (POWER SOURCE CIRCUIT)
OK -- REPLACE AFS ECU
2. CHECK HARNESS AND CONNECTOR (POWER SOURCE CIRCUIT)
HINT: AFS ECU Power Source Circuit

NG -- REPAIR OR REPLACE HARNESS OR CONNECTOR
OK -- Continue to next step.
3. CHECK HARNESS AND CONNECTOR (AFS ECU - HEADLIGHT LEVELING MOTOR)
(a) Disconnect the A22 AFS ECU connector.




(b) Disconnect the A20 or A21 headlight leveling motor connector.
(c) Measure the resistance according to the value(s) in the table below.
Standard resistance:
LH Side (B2417)





RH Side (B2418)





NG -- REPAIR OR REPLACE HARNESS OR CONNECTOR
OK -- Continue to next step.
4. REPLACE HEADLIGHT UNIT (HEADLIGHT LEVELING MOTOR)
OK:
Returns to normal operation.
NG -- REPLACE AFS ECU
OK -- END