Toyota Corolla Cross Owners & Service Manuals

Toyota Corolla Cross: Low Beam LH Circuit Voltage Out of Range (B24441C,B24451C)

Toyota Corolla Cross (2022-2024) Service Manual / Vehicle Exterior / Lighting (ext) / Lighting System (w/o Afs) / Low Beam LH Circuit Voltage Out of Range (B24441C,B24451C)

DESCRIPTION

The BIN resistance is equipped for the purpose of correcting variances in brightness (luminous flux) when the light control LED ECU is energizing the LED with a constant current to illuminate it.

Also, it monitors the voltage applied to the BIN resistance in order to detect abnormalities in the energizing current and thereby detect malfunctions.

DTC No.

Detection Item

DTC Detection Condition

Trouble Area

B24441C

Low Beam LH Circuit Voltage Out of Range

 Detection condition:
  • Ignition switch is to ON, low beam headlights illuminated
Malfunction status:
  • Headlight assembly LH (BIN resistance) malfunction
  • Open/short in headlight assembly LH (BIN resistance) circuit
Malfunction duration:
  • 10 seconds or more

Headlight assembly LH

B24451C

Low Beam RH Circuit Voltage Out of Range

 Detection condition:
  • Ignition switch is to ON, low beam headlights illuminated
Malfunction status:
  • Headlight assembly RH (BIN resistance) malfunction
  • Open/short in headlight assembly RH (BIN resistance) circuit
Malfunction duration:
  • 10 seconds or more

Headlight assembly RH

CAUTION / NOTICE / HINT

NOTICE:

First perform the communication function inspections in How to Proceed with Troubleshooting to confirm that there are no CXPI communication malfunctions before troubleshooting this symptom.

Click here

PROCEDURE

1.

CLEAR DTC
Body Electrical > Main Body > Clear DTCs
NEXT

2.

CHECK FOR DTC

NOTICE:

Turn the ignition switch ON and wait for at least 10 seconds or more.

Body Electrical > Main Body > Trouble Codes

Result

Proceed to

B243900, B243A00, B24441C or B24451C is output

A

B243900, B243A00, B24441C and B24451C are not output

B
A

REPLACE HEADLIGHT ASSEMBLY

B

USE SIMULATION METHOD TO CHECK

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