ENGINE IMMOBILISER SYSTEM > DIAGNOSTIC TROUBLE CODE CHART

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

Transponder Key ECU Assembly 
DTC Code
Detection Item
Detection Enabling Condition (DTC Output Confirmation Operation)
See page
B2780
Push Switch / Key Unlock Warning Switch Malfunction
Insert the key into the ignition key cylinder.
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B2784
Antenna Coil Open / Short
Insert the key into the ignition key cylinder.
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B2793
Transponder Chip Malfunction
Insert the key into the ignition key cylinder.
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B2794
Unmatched Encryption Code
Insert the key into the ignition key cylinder.
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B2795
Unmatched Key Code
Insert the key into the ignition key cylinder.
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B2796
No Communication in Immobiliser System
Insert the key into the ignition key cylinder.
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B2797
Communication Malfunction No. 1
Insert the key into the ignition key cylinder.
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B2798
Communication Malfunction No. 2
Insert the key into the ignition key cylinder.
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ECM 
DTC Code
Detection Item
Detection Enabling Condition (DTC Output Confirmation Operation)
See page
B2799
Engine Immobiliser System Malfunction
Either condition is met:
- Within 10 seconds of an engine start operation being performed (with the shift lever in P and the brake pedal*1 or clutch pedal*2 depressed, turn the ignition switch to ON). If there is a malfunction, the engine stops (communication begins within 3 seconds of the engine start operation being performed, and DTCs are stored after 6 seconds).
- 10 seconds after the ignition switch is turned to ON after reconnecting the cable to the negative (-) battery terminal (communication begins within 3 seconds of the ignition switch being turned to ON, and DTCs are stored after 6 seconds).
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B279A*3
Theft Deterrent System Communication Line High Fixation
Turn the ignition switch to ON and wait 6 seconds.
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B279C*3
Theft Deterrent System Presence Detection
Check for DTCs.
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  1. *1: for Automatic Transmission
  2. *2: for Manual Transmission
  3. *3: except 1TR-FE