Toyota CH-R Service Manual: Height Control Sensor Data Out of Range When Initializing (B2452)

Toyota CH-R Service Manual / Lighting (ext) / Automatic Headlight Beam Level Control System / Height Control Sensor Data Out of Range When Initializing (B2452)

DESCRIPTION

The headlight ECU sub-assembly LH stores this DTC if the sensor value received from the rear height control sensor sub-assembly LH is out of range when performing initialization of the headlight ECU sub-assembly LH; for example, the vehicle is not level or being jack up.

DTC No.

Detection Item

DTC Detection Condition

Trouble Area

Note

B2452

Height Control Sensor Data Out of Range When Initializing

Rear height control sensor sub-assembly LH value is out of range when initializing
  • Vehicle condition when initializing
  • Rear height control sensor sub-assembly LH

-

CAUTION / NOTICE / HINT

NOTICE:

If any of the following are performed, it is necessary to initialize the headlight ECU sub-assembly LH.

Click here

  • Replacement of the rear height control sensor sub-assembly LH
  • Removal/installation of the rear height control sensor sub-assembly LH
  • Work that changes the vehicle height such as replacement of suspension components

PROCEDURE

1.

CLEAR DTC

(a) Clear the DTCs.

Click here

Body Electrical > HL AutoLeveling > Clear DTCs
NEXT

2.

CHECK FOR DTC

(a) Turn the ignition switch to ON.

(b) Check for DTCs.

Click here

Body Electrical > HL AutoLeveling > Trouble Codes

OK:

DTC B2452 is not output.

OK

USE SIMULATION METHOD TO CHECK

NG

3.

CHECK AND REPLACE REAR HEIGHT CONTROL SENSOR SUB-ASSEMBLY LH

(a) Check the installation condition of the rear height control sensor sub-assembly LH.

OK:

Rear height control sensor sub-assembly LH is installed correctly.

OK

REPLACE REAR HEIGHT CONTROL SENSOR SUB-ASSEMBLY LH

NG

INSTALL PARTS CORRECTLY

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