SYSTEM DIAGRAM

Precaution
How To Proceed With TroubleshootingEngine Immobiliser System Circuit Short to Battery (B279A12)
DESCRIPTION
When the communication line (IMI - EFIO) between the ECM and certification ECU
(smart key ECU assembly) is stuck high, the ECM stores this DTC.
DTC Code
DTC Detection Condition
Trouble Area
DTC Output Confirmation Operation
...
Terminals Of Ecu
TERMINALS OF ECU
1. CHECK MAIN BODY ECU (MULTIPLEX NETWORK BODY ECU)
(a) Disconnect the 1D and 1F driver side junction block connectors.
(b) Measure the voltage and resistance according to the value(s) in the table
below.
HINT:
Measure the values on the wire harness side with the connectors ...
Engine Control System Malfunction (C1201)
DESCRIPTION
If a malfunction in the engine control system is detected, VSC and TRAC operations
are prohibited by the fail-safe function.
DTC No.
Detection Item
DTC Detection Condition
Trouble Area
C1201
Engine Control System ...