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 |
Note |
---|---|---|---|---|
B2456 |
Left Headlight ECU Variation Error |
Headlight ECU sub-assembly LH variation mismatch |
|
- |
CAUTION / NOTICE / HINT
NOTICE:
Click here
Click here
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) Turn on the headlights using the light control switch.
(c) Check for DTCs.
Click here
Body Electrical > HL AutoLeveling > Trouble Codes
Result |
Proceed to |
---|---|
DTC B2456 output does not occur |
A |
DTC B2456 output occurs |
B |
A |
USE SIMULATION METHOD TO CHECK |
|
3. |
CHECK ECM |
(a) Check that the ECM part number matches the vehicle.
Result |
Proceed to |
---|---|
ECM part number matches vehicle |
A |
ECM part number does not match |
B |
B |
REPLACE ECM |
|
4. |
CHECK MAIN BODY ECU (MULTIPLEX NETWORK BODY ECU) |
(a) Check that the main body ECU (multiplex network body ECU) part number matches the vehicle.
Result |
Proceed to |
---|---|
Main body ECU (multiplex network body ECU) part number matches vehicle |
A |
Main body ECU (multiplex network body ECU) part number does not match |
B |
A |
REPLACE HEADLIGHT LIGHT CONTROL ECU SUB-ASSEMBLY LH |
B |
REPLACE MAIN BODY ECU (MULTIPLEX NETWORK BODY ECU) |
Toyota CH-R Service Manual > Airbag System: Side Airbag Sensor Assembly No.2 (RH) (B162A/2A)
DESCRIPTION
The side collision sensor RH circuit (bus 2) consists of the airbag sensor assembly
and floor side airbag sensor RH.
The floor side airbag sensor RH detects impacts to the vehicle and sends signals
to the airbag sensor assembly to determine if the airbags and pretensioners should
...
Toyota CH-R Service Manual > Occupant Classification System: System Description
SYSTEM DESCRIPTION
GENERAL
(a) The occupant detection ECU estimates the weight of an occupant based on signals
received from the 2 occupant classification sensors. The occupant detection ECU
determines whether the front passenger seat is occupied and classifies the occupant
based on the esti ...