ENGINE IMMOBILISER SYSTEM DIAGNOSTIC TROUBLE CODE CHART

Transponder key ECU
DTC Code	Detection Item	Trouble Area	See page
B2780	Push Switch / Key Unlock Warning Switch Malfunction	Unlock warning switch assembly Wire harness Transponder key ECU	Click here
B2784	Antenna Coil Open / Short	Wire harness Transponder key amplifier Transponder key ECU	Click here
B2793	Transponder Chip Malfunction	Key	Click here
B2794	Unmatched Encryption Code	Key	Click here
B2795	Unmatched Key Code	Key	Click here
B2796	No Communication in Immobiliser System	Key Transponder key amplifier Wire harness Transponder key ECU	Click here
B2797	Communication Malfunction No. 1	Key Wire harness Transponder key amplifier Transponder key ECU	Click here
B2798	Communication Malfunction No. 2	Key	Click here

ECM.
The DTCs for the immobiliser system are specified above. If other codes are output, check the DTC chart for the engine control system.
DTC Code	Detection Item	Trouble Area	See page
B2799/99	Engine Immobiliser System Malfunction	ECM Transponder key ECU Wire harness	Click here
B279A	Theft Deterrent System Communication Line High Fixation	ECM Transponder key ECU Wire harness	Click here
B279C	Theft Deterrent System Presence Detection	ECM	Click here