Toyota Sienna Service Manual: Engine Immobiliser System Malfunction
DTC B2799 Engine Immobiliser System Malfunction
DESCRIPTION
This DTC is output when the ECM detects errors in communication between the transponder key ECU and the ECM, or in the communication lines. This DTC is also output when an engine start is attempted while the ECU communication ID between the transponder key ECU and the ECM are different. Before troubleshooting for this DTC, make sure that there is no DTC detected in the transponder key ECU. If there is key code-related DTC detected in the transponder key ECU, repair it first.
|
DTC No. |
DTC Detection Condition |
Trouble Area |
|
B2799 |
|
|
WIRING DIAGRAM
INSPECTION PROCEDURE
1 CHECK HARNESS AND CONNECTOR (TRANSPONDER KEY ECU ASSEMBLY - ECM)
- Disconnect the T6 ECU and E5 ECM connectors.
- Check the resistance of the wire harness side connectors.
Resistance
2 CHECK TRANSPONDER KEY ECU ASSEMBLY
- After replacing the transponder key ECU assembly with a normally functioning transponder key ECU assembly, check that the engine starts.
OK: The engine starts
END
No Communication in Immobiliser System
DTC B2796 No Communication in Immobiliser System
DTC B2798 Communication Malfunction No. 2
DESCRIPTION
These codes are stored in the memory when a key that does not have a
transponder chip is ins ...
Cruise control
...
Other materials:
Diagnostic trouble code chart
1. DTCS FOR AIRBAG SYSTEM
If a malfunction code is displayed during the DTC check,
check the circuit listed for the code in the table below
(Proceed to the page listed for that circuit).
HINT:
When the SRS warning light remains on and the DTC
output is the normal system code, a volta ...
Rear Occupant Classification Sensor LH Circuit
Malfunction
DTC B1782 Rear Occupant Classification Sensor LH Circuit
Malfunction
DESCRIPTION
The rear occupant classification sensor LH circuit consists of the occupant
classification ECU and the rear
occupant classification sensor LH.
DTC B1782 is recorded when a malfunction is detected in the rear oc ...
Wiper and washer system
PRECAUTION
1. PRECAUTION OF WASHER NOZZLE ADJUSTMENT
Do not clean or adjust the washer nozzle with a
safety pin, etc. because;
the washer nozzle tip is made of resin and could
be damaged.
adjustment is not necessary because the
washer nozzle is a spray type.
...
