DESCRIPTION
When an internal malfunction occurs in the ID code box (immobiliser code ECU), the certification ECU (smart key ECU assembly) stores this DTC.
DTC No. |
Detection Item |
DTC Detection Condition |
Trouble Area |
Note |
---|---|---|---|---|
B2790 |
ID BOX EEPROM Malfunction |
An internal malfunction occurs in the ID code box (immobiliser code ECU) (EEPROM access malfunction). (1 trip detection logic*) |
|
DTC output confirmation operation:
|
Vehicle Condition when Malfunction Detected |
Fail-safe Operation when Malfunction Detected |
---|---|
|
- |
DTC No. |
Data List and Active Test |
---|---|
B2790 |
- |
CAUTION / NOTICE / HINT
NOTICE:
Click here
PROCEDURE
1. |
REPLACE ID CODE BOX (IMMOBILISER CODE ECU) |
(a) Replace the ID code box (immobiliser code ECU) with a new one.
Click here
|
2. |
CLEAR DTC |
(a) Clear the DTCs.
Click here
Body Electrical > Smart Key > Clear DTCs
|
3. |
REGISTER RECOGNITION CODE |
(a) Register the recognition code to the ECUs.
Click here
|
4. |
REGISTER ECU COMMUNICATION ID |
(a) Register the ECU communication ID codes.
Click here
|
5. |
CHECK FOR DTC |
(a) Perform "DTC Output Confirmation Operation" procedure.
(b) Check for DTCs.
Click here
Body Electrical > Smart Key > Trouble CodesOK:
DTC B2790 is not output.
OK |
END (ID CODE BOX (IMMOBILISER CODE ECU) WAS DEFECTIVE) |
NG |
REPLACE CERTIFICATION ECU (SMART KEY ECU ASSEMBLY) |
Toyota CH-R Service Manual > Vehicle Stability Control System: Master Cylinder Pressure Sensor Malfunction (C1246)
DESCRIPTION
The master cylinder pressure sensor is connected to the skid control ECU in the
brake actuator assembly.
DTC No.
Detection Item
DTC Detection Condition
Trouble Area
C1246
Master Cylinder Pressure Sensor Malfunc ...
Toyota CH-R Service Manual > Smart Key System(for Start Function): Problem Symptoms Table
PROBLEM SYMPTOMS TABLE
HINT:
Use the table below to help determine the cause of problem symptoms.
If multiple suspected areas are listed, the potential causes of the symptoms
are listed in order of probability in the "Suspected Area" column of the
table. Check each sy ...