On-vehicle Inspection
Navigation AntennaLost Communication with ECM / PCM "A" (U0100-U0142,U0155)
DESCRIPTION
These DTCs are stored when the clearance warning ECU assembly cannot receive
and recognize several signals via the CAN communication system.
DTC No.
DTC Detection Condition
Trouble Area
U0100
...
Theft 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
...
Inspection
INSPECTION
PROCEDURE
1. INSPECT VACUUM SWITCHING VALVE ASSEMBLY (for ACIS)
(a) Measure the resistance according to the value(s) in the table below.
Text in Illustration
*1
Body Ground
Stan ...