Diagnostic Trouble Code Chart

HINT:

If a trouble code is stored during the DTC check, inspect the trouble areas listed for that code. For details of the code, refer to "See" below.

TRANSPONDER KEY ECU DIAGNOSTIC TROUBLE CODE CHART

TRANSPONDER KEY ECU

DTC Code	Detection Item	Trouble Area	See
B2780	Push Switch / Key Unlock Warning Switch Malfunction	- Wire harness connector - Unlock warning switch - Transponder key ECU	Refer to DTC B2780: Push Switch / Key Unlock Warning Switch Malfunction
B2784	Antenna Coil Open / Short	- Wire harness connector - Transponder key amplifier - Transponder key ECU	Refer to DTC B2784: Antenna Coil Open / Short
B2793	Transponder Chip Malfunction	Key	Refer to DTC B2793: Transponder Chip Malfunction
B2794	Unmatched Encryption Code	Key	Refer to DTC B2794: Unmatched Encryption Code
B2795	Unmatched Key Code	Key	Refer to DTC B2795: Unmatched Key Code
B2796	No Communication in Immobilizer System	- Key - Transponder key amplifier - Transponder key ECU	Refer to DTC B2796: No Communication in Immobilizer System; DTC B2798: Communication Malfunction No. 2
B2797	Communication Malfunction No. 1	- Key - Transponder key amplifier - Transponder key ECU	Refer to DTC B2797: Communication Malfunction No. 1
B2798	Communication Malfunction No. 2	- Key - Transponder key amplifier - Transponder key ECU	Refer to DTC B2796: No Communication in Immobilizer System; DTC B2798: Communication Malfunction No. 2

ECM DIAGNOSTIC TROUBLE CODE CHART

HINT:

The DTCs for the engine immobilizer system are specified below. If other codes are output, check the DTC chart for the SFI system.

ECM

DTC Code	Detection Item	Trouble Area	See
B2799	Engine Immobilizer System Malfunction	- Wire harness connector - ECM - Transponder key ECU	Refer to DTC B2799: Engine Immobilizer System Malfunction
B279A	Theft Deterrent System Communication Line High Fixation	- Wire harness connector - Transponder key ECU - ECM	Refer to DTC B279A: Theft Deterrent System Communication Line High Fixation
B279C	Theft Deterrent System Presence Detection	ECM	Refer to DTC B279C: Theft Deterrent System Presence Detection