Engine Immobiliser System (W/ Smart Key System) Diagnostic Trouble Code Chart

Vehicle Interior. Corolla. Zre142 Aze141
Theft Deterrent Keyless Entry. Corolla. Zre142 Aze141

  1. CERTIFICATION ECU (SMART KEY ECU ASSEMBLY) DIAGNOSTIC TROUBLE CODE CHART

  1. ECM DIAGNOSTIC TROUBLE CODE CHART

Engine Immobiliser System (W/ Smart Key System) -- Diagnostic Trouble Code Chart



CERTIFICATION ECU (SMART KEY ECU ASSEMBLY) DIAGNOSTIC TROUBLE CODE CHART

Certification ECU (Smart Key ECU Assembly)
DTC Code
Detection Item
Trouble Area
See page
B2784
Antenna Coil Open / Short
1. Wire harness or connector
2. Engine switch
3. Certification ECU (smart key ECU assembly)
COROLLA_ZRE142 RM000000QYJ0AEX.html
B2785
Communication Malfunction between ECUs Connected by LIN
1. Certification ECU (smart key ECU assembly)
2. Main body ECU (instrument panel junction block)
3. Steering lock ECU
4. ID code box (immobiliser code ECU)
5. Wire harness or connector
COROLLA_ZRE142 RM0000030N301NX.html
B2786
No Response from Steering Lock ECU
1. Steering lock ECU
2. Certification ECU (smart key ECU assembly)
3. Wire harness or connector
COROLLA_ZRE142 RM0000030N401PX.html
B2789
No Response from ID BOX
1. ID code box (immobiliser code ECU)
2. Certification ECU (smart key ECU assembly)
3. Wire harness or connector
COROLLA_ZRE142 RM0000030N501CX.html
B278A
Short to GND in Immobiliser System Power Source Circuit
1. Wire harness or connector
2. Engine switch
3. Certification ECU (smart key ECU assembly)
COROLLA_ZRE142 RM000000TUF09YX.html
B2790
ID BOX EEPROM Malfunction
ID code box (immobiliser code ECU)
COROLLA_ZRE142 RM000000TUG08HX.html

ECM DIAGNOSTIC TROUBLE CODE CHART
HINT:
The DTCs for the engine immobiliser system are specified above. If other codes are output, check the DTC chart for the SFI system.

ECM
DTC Code
Detection Item
Trouble Area
See page
B2799
Engine Immobiliser System Malfunction
1. Wire harness or connector
2. ECM
3. ID code box (immobiliser code ECU)
COROLLA_ZRE142 RM000000SJV098X.html
B279A
Theft Deterrent System Communication Line High Fixation
1. Wire harness or connector
2. ECM
3. ID code box (immobiliser code ECU)
COROLLA_ZRE142 RM000002UBW07UX.html
B279C
Theft Deterrent System Presence Detection
ECM
COROLLA_ZRE142 RM000002UBX07UX.html