Installation
Back Door Courtesy SwitchTheft Deterrent System Communication Line High Fixation (B279A)
DESCRIPTION
If the communication line (EFIO-IMI) to the transponder key ECU assembly is stuck
high output (e.g. shorted to +B), the ECM stores this DTC.
DTC No.
DTC Detection Condition
Trouble Area
B279A
...
System Description
SYSTEM DESCRIPTION
1. NAVIGATION SYSTEM OUTLINE
(a) Vehicle position tracking methods
It is essential that the navigation system correctly tracks the current vehicle
position and displays it on the map. There are 2 methods to track the current vehicle
p ...
ECU Power Source Circuit
DESCRIPTION
When the ignition switch is turned to ON, voltage from the ECM's MREL terminal
is applied to the EFI MAIN relay. This causes the contacts of the EFI MAIN relay
to close, which supplies power to terminal +B of the TCM.
WIRING DIAGRAM
PR ...