Diagnostic Trouble Code Chart

CERTIFICATION ECU DTC CHART

HINT

If a trouble code is output during the DTC check, check the circuit listed for that code in the table below. Then proceed to the "See page" below.

Certification ECU

DIAGNOSTIC TROUBLE CODE CHART

DTC Code	Detection Item	Trouble Area
B2784	Antenna Coil Open / Short	Certification ECU (Smart key ECU assembly) Engine switch
B278A	Short to GND in Immobiliser System Power Source Circuit	Harness or connector ECM ID code box (Immobiliser code ECU)
B2790	ID BOX EEPROM Malfunction	ID code box (Immobiliser code ECU)

ECM DTC CHART

HINT:

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

ECM

DIAGNOSTIC TROUBLE CODE CHART

DTC Code	Detection Item	Trouble Area
B2799	Engine Immobiliser System Malfunction	Harness or connector ECM ID code box (Immobiliser code ECU)
B279A	Theft Deterrent System Communication Line High Fixation	Harness or connector ECM ID code box (Immobiliser code ECU)
B279C	Theft Deterrent System Presence Detection	ECM