Diagnostic Trouble Code Chart

CERTIFICATION ECU DTC CHART

HINT

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

Certification ECU:

CERTIFICATION ECU REFERENCE CHART

DTC Code	Detection Item	Trouble Area
B2784	Antenna Coil Open / Short	Certification ECU Power switch
B278A	Short to GND in Immobilizer System Power Source Circuit	Harness or connector Power switch Certification ECU
B2790	ID BOX EEPROM Malfunction	ID code box

HYBRID VEHICLE CONTROL ECU DTC CHART

HINT:

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

Hybrid vehicle control ECU:

HYBRID VEHICLE CONTROL ECU REFERENCE CHART

DTC Code	Detection Item	Trouble Area
B2799-790	Engine Immobilizer System Malfunction	Harness or connector Hybrid vehicle control ECU ID code box
B279A-186	Engine Immobilizer System Communication Line High Fixation	Harness or connector ID code box Hybrid vehicle control ECU
B279C-185	Engine Immobilizer System Presence Detection	Hybrid vehicle control ECU