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.
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PROCEDURE
1. |
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) Check for DTCs.
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Body Electrical > HL AutoLeveling > Trouble CodesOK:
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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