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
|
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 |
Toyota CH-R Service Manual > Power Mirror Control System: Power Retractable Mirrors do not Operate with Power Retract Mirror Switch
DESCRIPTION
The outer mirror switch assembly sends a mirror retract/return signal to the
main body ECU (multiplex network body ECU) when the retractable outer mirror switch
on the outer mirror switch assembly is operated. The main body ECU (multiplex network
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Toyota CH-R Service Manual > Lighting System: Terminals Of Ecu
TERMINALS OF ECU
*A
Main Body ECU (Multiplex Network Body ECU) with 1 Connector
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*A
Main Body ECU (Multiplex Network Body ECU) with 2 Connectors
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-
CHECK INSTRUMENT PANEL JUNCTION BLO ...