Toyota 4Runner: ID BOX EEPROM Malfunction (B2790)
DESCRIPTION
This DTC is stored when the ID code box detects an internal malfunction.
|
DTC Code |
DTC Detection Condition |
Trouble Area |
|---|---|---|
|
B2790 |
The ID code box detects an internal malfunction. |
|
CAUTION / NOTICE / HINT
NOTICE:
Before replacing the certification ECU, refer to Registration (See page
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).
PROCEDURE
|
1. |
REPLACE ID CODE BOX |
(a) Replace the ID code box (See page ).
|
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|
2. |
REGISTER RECOGNITION CODES |
(a) Register the recognition codes in the ECUs (See page
).
|
|
3. |
REGISTER ECU COMMUNICATION ID |
(a) Register the ECU communication ID (See page
).
|
|
4. |
CLEAR DTC |
(a) Clear the DTCs (See page ).
|
|
5. |
CHECK FOR DTC |
(a) Check for DTCs (See page ).
OK:
DTC B2790 is not output.
| OK | .gif) |
END (ID CODE BOX IS DEFECTIVE) |
| NG | |
REPLACE CERTIFICATION ECU |
Antenna Coil Open / Short (B2784)
DESCRIPTION
This DTC is stored when there is an open or short malfunction in the transponder
key amplifier coil (built into the engine switch).
DTC Code
DTC Detection Conditi ...
Engine Immobiliser System Malfunction (B2799)
DESCRIPTION
This DTC is stored when one of the following occurs: 1) the ECM detects errors
in its own communications with the ID code box; 2) the ECM detects errors in the
communication lines; or ...
Other materials about Toyota 4Runner:
General Information
GENERAL INFORMATION
A large number of ECU controlled systems are used in the 4RUNNER. In
general, ECU controlled systems are considered to be very intricate, requiring
a high level of technical knowledge to troubleshoot. However, most problem
...
Folding down the second row seats (vehicles with third row seats)
Before folding down the second row seats
Adjust the head restraints to the downmost position.
Stow the second row seat belt buckles.
Folding down the second row seats
Pull the seatback lock release lever and fold the seatback down.
To return the sec ...
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