Toyota Corolla Cross: Transponder Chip Malfunction (B2793,B2797)
Toyota Corolla Cross (2022-2025) Service Manual / Vehicle Interior / Theft Deterrent / Keyless Entry / Immobiliser System (w/o Smart Key System) / Transponder Chip Malfunction (B2793,B2797)
DESCRIPTION
- DTC B2793 is stored when a malfunction is found in the door control transmitter assembly during key ID code registration or a key ID code is not registered normally. Replace the door control transmitter assembly if key ID code registration cannot be performed normally and this DTC is output.
- DTC B2797 is stored when a door control transmitter assembly with a BCC malfunction is inserted into the ignition key cylinder.
|
DTC No. | Detection Item |
DTC Detection Condition | Trouble Area |
Note |
|---|---|---|---|---|
| B2793 |
Transponder Chip Malfunction |
A transponder chip malfunction (1 trip detection logic*). |
Door control transmitter assembly | DTC Output Confirmation Operation:
|
| B2797 |
Communication Malfunction No. 1 |
A door control transmitter assembly with a BCC malfunction is inserted into the ignition key cylinder (1 trip detection logic*). |
Door control transmitter assembly | DTC Output Confirmation Operation:
|
- *: Only output while a malfunction is present.
|
Vehicle Condition when Malfunction Detected |
Fail-safe Operation when Malfunction Detected |
|---|---|
|
Engine cannot be started |
- |
|
DTC No. | Data List and Active Test |
|---|---|
|
B2793 | - |
|
B2797 | - |
CAUTION / NOTICE / HINT
NOTICE:
- If the door control transmitter assembly is replaced, refer to Registration.
Click here
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- After repair, confirm that no DTCs are output by performing "DTC Output Confirmation Operation".
PROCEDURE
|
1. | REPLACE DOOR CONTROL TRANSMITTER ASSEMBLY |
(a) Replace the door control transmitter assembly.
| NEXT | .gif) | END (DOOR CONTROL TRANSMITTER ASSEMBLY WAS DEFECTIVE) |
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Unmatched Encryption Code (B2794)
DESCRIPTION This DTC is stored when a door control transmitter assembly with an incomplete key ID code is inserted into the ignition key cylinder.
DTC No. Detection Item
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DESCRIPTION This DTC is stored when a door control transmitter assembly with a different vehicle serial number is inserted into the ignition key cylinder.
DTC No. Detection Item
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DESCRIPTION This DTC is stored when a door control transmitter assembly is inserted into the ignition key cylinder but no communication occurs between the door control transmitter assembly and transpo
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