Lexus NX: Left Headlight ECU Variation Error (B2456)
DESCRIPTION
This DTC is output when a headlight ECU sub-assembly LH that is incompatible with the vehicle is installed.
The headlight ECU sub-assembly LH outputs DTC B2456.
DTC No. | Detection Item | DTC Detection Condition | Trouble Area |
B2456 | Left Headlight ECU Variation Error | Headlight ECU sub-assembly LH variation mismatch | -
Headlight ECU sub-assembly LH
-
Hybrid vehicle control ECU
|
PROCEDURE
(a) Clear the DTCs.
Click here
Body Electrical > AFS > Clear DTCs
(b) Turn the power switch on (IG).
(c) Check for DTCs.
Click here
Body Electrical > AFS > Trouble Codes
OK:
DTC B2456 output does not occur.
NG | | |
2. | CHECK HYBRID VEHICLE CONTROL ECU |
(a) Check that the hybrid vehicle control ECU part number matches the vehicle.
Result | Proceed to |
Hybrid vehicle control ECU part number matches vehicle | A |
Hybrid vehicle control ECU part number does not match | B |
A | | REPLACE HEADLIGHT ECU SUB-ASSEMBLY LH |
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