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Toyota Sienna Service Manual: Unmatched Encryption Code

DTC B2794 Unmatched Encryption Code

DESCRIPTION

This DTC is output when a key with an incomplete key code is inserted into the ignition key cylinder.

DTC No.

DTC Detection Condition

Trouble Area

B2794

Key with incomplete key code inserted Key

INSPECTION PROCEDURE

1 RE-REGISTER KEY

  1. Delete the DTC.
  2.  Re-register the key and insert this key into the ignition key cylinder.

Check that the engine starts with this key.

OK: The engine starts

REPLACE KEY

Transponder Chip Malfunction
DTC B2793 Transponder Chip Malfunction DESCRIPTION This DTC is output when a malfunction is found in the key during the key code registration or the key code is not registered normally. Replace t ...

Unmatched Key Code
DTC B2795 Unmatched Key Code DESCRIPTION This DTC is output when a key with a code that has not been registered in the ECU is inserted into the ignition key cylinder. DTC No. D ...

Other materials:

Problem symptoms table
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When stopping the engine with the shift lever in a position other than P
If the engine is stopped with the shift lever in a position other than P, the engine switch will not be turned off but instead be turned to ACCESSORY mode. Perform the following procedure to turn the switch off: Check that the parking brake is set. Shift the shift lever to P. Check that t ...

Definition of terms
Terms Definitions Monitor Description Description of what ECM monitors and how to detect malfunctions (monitoring purpose and details). Related DTCs A group of diagnostic trouble codes that are output by ECM based on the same malfunction detection lo ...

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