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

    Diagnostic Trouble Code Chart
    DIAGNOSTIC TROUBLE CODE CHART Automatic Headlight Beam Level Control System DTC No. Detection Item Link B2415 Vehicle Speed Sensor Malfun ...

    Left Headlight ECU Variation Error (B2456)
    DESCRIPTION This DTC is stored when a headlight ECU sub-assembly LH which is not compatible with the vehicle has been installed. DTC No. Detection Item DTC Detecti ...

    Other materials:

    Toyota CH-R Service Manual > Automatic High Beam System: System Description
    SYSTEM DESCRIPTION AUTOMATIC HIGH BEAM SYSTEM (a) General The automatic high beam system enhances the illumination of the area in front of the vehicle to improve visibility for the driver. It works by detecting light from the front of the vehicle, using the forward recognition camera, and tur ...

    Toyota CH-R Service Manual > Vehicle Stability Control System: Brake Pedal Load Sensing Switch OFF Stuck Malfunction (C1430,C1431)
    DESCRIPTION The brake pedal load sensing switch turns on when the brake pedal is depressed with a force exceeding a predetermined level. The skid control ECU uses this circuit to detect if the brake pedal is depressed or not. DTC No. Detection Item DTC Detecti ...

    Toyota CH-R Owners Manual

    Toyota CH-R Service Manual

    © 2017-2022 Copyright www.tochr.net
    0.0101