DESCRIPTION
The headlight ECU sub-assembly LH stores this DTC if the vehicle specifications have not been stored in the ECU.
DTC No. |
Detection Item |
DTC Detection Condition |
Trouble Area |
Note |
---|---|---|---|---|
B2451 |
Vehicle Specifications have not been Stored |
Vehicle specifications have not been stored |
Headlight ECU sub-assembly LH |
- |
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. |
SYNCHRONIZE VEHICLE INFORMATION |
(a) Synchronize the vehicle information.
Click here
Body Electrical > HL AutoLeveling > Utility
Tester Display |
---|
ECU Information Sync |
|
2. |
CLEAR DTC |
(a) Clear the DTCs.
Click here
Body Electrical > HL AutoLeveling > Clear DTCs
|
3. |
CHECK FOR DTC |
(a) Turn the ignition switch to ON.
(b) Check for DTCs.
Click here
Body Electrical > HL AutoLeveling > Trouble CodesOK:
DTC B2451 is not output.
OK |
END (VEHICLE SPECIFICATIONS WERE NOT STORED) |
NG |
REPLACE HEADLIGHT ECU SUB-ASSEMBLY LH |
Toyota CH-R Service Manual > Can Communication System: Open in Bus 3 Main Bus Line
DESCRIPTION
There may be an open circuit in one of the CAN main bus lines when the resistance
between terminals 6 (CA3H) and 21 (CA3L) of the central gateway ECU (network gateway
ECU) is 70 Ω or higher.
Symptom
Trouble Area
Resistance between terminals 6 ...
Toyota CH-R Service Manual > Power Steering System: Data List / Active Test
DATA LIST / ACTIVE TEST
DATA LIST
HINT:
Using the Techstream to read the Data List allows the values or states of switches,
sensors, actuators and other items to be read without removing any parts. This non-intrusive
inspection can be very useful because intermittent conditions or signals may ...