SYSTEM DIAGRAM
Transmitting ECU (Transmitter) |
Receiving ECU |
Signal |
Communication Method |
---|---|---|---|
Center Airbag Sensor Assembly |
ECM |
Crash detection signal |
CAN |
Combination Meter Assembly |
|
||
Main Body ECU |
Driver seat buckle switch signal |
||
ECM |
Center Airbag Sensor Assembly |
|
|
Combination Meter Assembly |
Vehicle speed signal |
Lost Communication with ECM / PCM (U0100)
DESCRIPTION
DTC No.
DTC Detection Condition
Trouble Area
U0100
No communication from the ECM continues.
ECM main wire or connector
Power source circuit of ECM
ECM
...
Adjustment
ADJUSTMENT
PROCEDURE
1. INSPECT SHIFT LEVER POSITION
(a) When moving the lever from P to R with the ignition switch ON and the brake
pedal depressed, make sure that the shift lever moves smoothly and moves correctly
into position.
(b) Start the engine ...
ECM Power Source Circuit
DESCRIPTION
When the ignition switch is turned to ON, the battery voltage is applied to IGSW
of the ECM. The output signal from the MREL terminal of the ECM causes a current
to flow to the coil, closing the contact of the engine room junction block assemb ...