Toyota CH-R Service Manual: Headlight Beam Level Control Motor LH Malfunction (B2417,B2418)

Toyota CH-R Service Manual / Lighting (ext) / Automatic Headlight Beam Level Control System / Headlight Beam Level Control Motor LH Malfunction (B2417,B2418)

DESCRIPTION

The headlight unit (headlight leveling motor) receives a signal from the headlight control ECU sub-assembly to operate. The headlight control ECU sub-assembly receives a signal indicating the operating conditions of the headlight unit (headlight leveling motor).

DTC No.	Detection Item	DTC Detection Condition	Trouble Area	Note
B2417	Headlight Beam Level Control Motor LH Malfunction	Malfunction in headlight leveling motor LH	Headlight ECU sub-assembly LH Headlight Unit Assembly LH (Headlight Leveling Motor)	-
B2418	Headlight Beam Level Control Motor RH Malfunction	Malfunction in headlight leveling motor RH	Headlight ECU sub-assembly RH Headlight Unit Assembly RH (Headlight Leveling Motor)	-

WIRING DIAGRAM

CAUTION / NOTICE / HINT

NOTICE:

After the headlight ECU sub-assembly LH is replaced, vehicle information registration and initialization are necessary.

Click here

PROCEDURE

CLEAR DTC

(a) Clear the DTCs.

Click here

Body Electrical > HL AutoLeveling > Clear DTCs

2.	CHECK FOR DTC

(a) Turn the ignition switch to ON.

(b) Turn on the headlights using the headlight dimmer switch.

Click here

Body Electrical > HL AutoLeveling > Trouble Codes

Result	Proceed to
DTC B2417 and B2418 output does not occur	A
DTC B2417 output occurs	B
DTC B2418 output occurs	C

USE SIMULATION METHOD TO CHECK

GO TO STEP 5

3.	PERFORM ACTIVE TEST USING TECHSTREAM (DRIVE THE LEVELING MOTOR)

(a) Connect the Techstream to the DLC3.

(b) Turn the ignition switch to ON.

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

(e) Read the Data List according to the display on the Techstream.

(f) Using the Techstream, perform the Active Test.

Click here

Body Electrical > HL AutoLeveling > Active Test

Tester Display	Measurement Item	Control Range	Diagnostic Note
Drive The Leveling Motor	Headlight leveling motor upward or downward operation	Stop/Down/Up	Perform the Active Test with the engine started and vehicle stopped

Body Electrical > HL AutoLeveling > Active Test

Tester Display
Drive The Leveling Motor

Result	Proceed to
The Active Test is performed normally	A
The Active Test is not performed normally	B

REPLACE HEADLIGHT ECU SUB-ASSEMBLY LH

4.	CHECK HEADLIGHT UNIT ASSEMBLY LH (HEADLIGHT LEVELING MOTOR)

(a) Temporarily replace the headlight unit assembly LH (headlight leveling motor) with a new or normally functioning one.

for Halogen Headlight: Click here
for LED Headlight: Click here

(b) Using the Techstream, perform the Active Test.

Click here

Body Electrical > HL AutoLeveling > Active Test

Tester Display	Measurement Item	Control Range	Diagnostic Note
Drive The Leveling Motor	Headlight leveling motor upward or downward operation	Stop/Down/Up	Perform the Active Test with the engine started and vehicle stopped

Body Electrical > HL AutoLeveling > Active Test

Tester Display
Drive The Leveling Motor

Result	Proceed to
The Active Test is performed normally	A
The Active Test is not performed normally	B

END (HEADLIGHT UNIT ASSEMBLY LH [HEADLIGHT LEVELING MOTOR] WAS DEFECTIVE)

REPLACE HEADLIGHT ECU SUB-ASSEMBLY LH

5.	PERFORM ACTIVE TEST USING TECHSTREAM (DRIVE THE LEVELING MOTOR)

(a) Using the Techstream, perform the Active Test.

Click here

Body Electrical > HL AutoLeveling > Active Test

Tester Display	Measurement Item	Control Range	Diagnostic Note
Drive The Leveling Motor	Headlight leveling motor upward or downward operation	Stop/Down/Up	Perform the Active Test with the engine started and vehicle stopped

Body Electrical > HL AutoLeveling > Active Test

Tester Display
Drive The Leveling Motor

Result	Proceed to
The Active Test is performed normally	A
The Active Test is not performed normally	B

REPLACE HEADLIGHT ECU SUB-ASSEMBLY LH

6.	CHECK HEADLIGHT UNIT ASSEMBLY RH (HEADLIGHT LEVELING MOTOR)

(a) Temporarily replace the headlight unit assembly RH (headlight leveling motor) with a new or normally functioning one.

for Halogen Headlight: Click here
for LED Headlight: Click here

(b) Using the Techstream, perform the Active Test.

Click here

Body Electrical > HL AutoLeveling > Active Test

Tester Display	Measurement Item	Control Range	Diagnostic Note
Drive The Leveling Motor	Headlight leveling motor upward or downward operation	Stop/Down/Up	Perform the Active Test with the engine started and vehicle stopped

Body Electrical > HL AutoLeveling > Active Test

Tester Display
Drive The Leveling Motor

Result	Proceed to
The Active Test is performed normally	A
The Active Test is not performed normally	B

END (HEADLIGHT UNIT ASSEMBLY RH [LEVELING MOTOR] WAS DEFECTIVE)

REPLACE HEADLIGHT ECU SUB-ASSEMBLY LH

Initialization has not been Performed (B2450)

DESCRIPTION The headlight ECU sub-assembly LH stores this DTC if initialization has not been performed after the ECU was replaced. DTC No. Detection Item DTC Detec ...

Vehicle Speed Sensor Malfunction (B2415)

DESCRIPTION The headlight ECU sub-assembly LH receives signals indicating the vehicle speed signal from the brake actuator assembly (skid control ECU) using CAN communication. The headlight ECU s ...

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Toyota CH-R Service Manual: Headlight Beam Level Control Motor LH Malfunction (B2417,B2418)

Initialization has not been Performed (B2450)

Vehicle Speed Sensor Malfunction (B2415)

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