CVT RE0F08B

U1000 CAN COMM CIRCUIT

Description

Real time communication is performed between each control unit such as TCM, ECM, combination meter, or others. Information is shared and linked between other control units. Each system is optimally controlled according to driving conditions of the vehicle.
In CAN (Controller Area Network) communication, 2 control units are connected via 2 communication lines (CAN-H and CAN-L) allowing a high rate of information transmission via less wiring. Each control unit transmits/receives data but selectively reads required data only.


DTC Logic


DTC DETECTION LOGIC







DTC CONFIRMATION PROCEDURE


1. PRECONDITIONING

Immediately after performing any "DTC CONFIRMATION PROCEDURE", always turn ignition switch OFF.
Then wait at least 10 seconds before performing the next test.
- GO TO 2.

2. PERFORM DTC CONFIRMATION PROCEDURE

With CONSULT
1.Start the engine.
2.Maintain idling state for 2 seconds or more.
3.Select "Self Diagnostic Results" in "TRANSMISSION".
With GST
Follow the procedure "With CONSULT".
Is "U1000" detected?
YES- Go to .
NO- INSPECTION END


Diagnosis Procedure

Go to CAN System Specification Chart.