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 Detection Condition |
Trouble Area |
Note |
---|---|---|---|---|
B2456 |
Left Headlight ECU Variation Error |
Incompatible headlight ECU sub-assembly LH is installed |
|
- |
CAUTION / NOTICE / HINT
NOTICE:
If the headlight ECU sub-assembly LH has been replaced, it is necessary to synchronize the vehicle information and initialize the headlight ECU sub-assembly LH.
Click here
PROCEDURE
1. |
CLEAR DTC |
(a) Clear the DTCs.
Click here
|
2. |
CHECK FOR DTC |
(a) Turn the ignition switch to ON.
(b) Check for DTCs.
Click here
OK:
DTC B2456 is not output.
OK | ![]() |
USE SIMULATION METHOD TO CHECK
|
|
3. |
CHECK ECM |
(a) Check if the part number of the ECM installed to the vehicle is correct.
OK:
Part number is correct.
OK | ![]() |
REPLACE HEADLIGHT ECU SUB-ASSEMBLY LH |
NG | ![]() |
REPLACE ECM |
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Components
COMPONENTS
ILLUSTRATION
*1
WASHER NOZZLE SUB-ASSEMBLY
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Non-reusable part
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-
On-vehicle Inspection
ON-VEHICLE INSPECTION
PROCEDURE
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REMOVAL
CAUTION / NOTICE / HINT
The necessary procedures (adjustment, calibration, initialization or registration)
that must be performed after parts are removed and installed, or replaced during
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Necessary Procedures after p ...