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 |
Toyota CH-R Service Manual > Brake Booster: Disassembly
DISASSEMBLY
PROCEDURE
1. REMOVE BRAKE VACUUM CHECK VALVE ASSEMBLY
(a) Remove the brake vacuum check valve assembly from the brake booster assembly.
(b) Remove the check valve grommet from the brake booster assembly.
2. REMOVE VACUUM WARNING SWITCH ASSEMBLY
(a) Remove the vacuum warning switc ...
Toyota CH-R Service Manual > Automatic High Beam System: How To Proceed With Troubleshooting
CAUTION / NOTICE / HINT
HINT:
Use the following procedure to troubleshoot the automatic high beam
system.
*: Use the Techstream.
PROCEDURE
1.
VEHICLE BROUGHT TO WORKSHOP
NEXT
...