Component Location
General Description

CAN communication circuits consist of two data lines (high and low) along with terminating resistors. The PCM, TCCM, TCM, and ABS ECUs are networked via CAN.

PCM, TCCM, TCM and ABS communicate their information to control Engine, Transmission and Brake.

DTC Description

DTC U0101 is set if TCCM can’t receive any response signal from TCM

DTC Detecting Condition

Item

Detecting Condition

Possible cause

DTC Strategy

CAN Signal Check

Poor Connection in connectors

Power supply to each module

Open or short in CAN communication line of PCM

Open or short in CAN communication line of TCCM

Faulty 120Ω registor(Cluster)

Faulty PCM

Faulty TCM

Enable Conditions

IG ON

Threshold value

No CAN message from TCM for more than 1 sec.

MIL ON Condition

Lamp ON

Diagnostic Circuit Diagram
Signal Waveform
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