Diagnosis Procedure
1.CHECK CONNECTOR
2.CHECK HARNESS FOR OPEN CIRCUIT

3.CHECK POWER SUPPLY AND GROUND CIRCUIT
Check the power supply and the ground circuit of the AV control unit. Refer to the following.
M&A branch line circuit
HVAC branch line circuitP0841 transmission fluid pressure SEN/SW A
Description
Using the engine load (throttle position), the primary pulley revolution
speed, and the secondary pulley revolution
speed as input signals, TCM changes the operating pressure of the primary pulley
and the secondary pulley
and changes the groove width of the pulley to control the ...
U1000 CAN comm circuit
Description
CAN (Controller Area Network) is a serial communication line for real time
application. It is an on-vehicle multiplex
communication line with high data communication speed and excellent error
detection ability. Many electronic
control units are equipped onto a vehicle, and each co ...
B2192 ID discord, IMMU-ECM
Description
BCM performs the ID verification with ECM that allows the
engine to start. Start the engine if the ID is OK.
ECM prevents the engine from starting if the ID is not registered. BCM starts
the communication with ECM if
ignition switch is turned ON.
DTC Logic
DTC DETECTION LOGIC ...