VEHICLE DYNAMICS CONTROL (VDC) (DIAGNOSTICS) > Diagnostic Procedure with Diagnostic Trouble Code (DTC)

DTC 44 TCM COMMUNICATION CIRCUIT

DTC DETECTING CONDITION:

TCM communication malfunction

TROUBLE SYMPTOM:

• VDC does not operate.

• ABS does not operate.

WIRING DIAGRAM:

• LHD model

• RHD model

STEPCHECKYESNO

1.CHECK HARNESS RESISTANCE.

1) Turn the ignition switch to OFF.

2) Disconnect the two connectors from the TCM.

3) Measure the resistance between TCM connector terminals.

Connector & terminal

(B55) No. 18 — No. 17:

Is the resistance 60±3 Ω?

Repair the harness between TCM and VDCCM.

2.CHECK POOR CONTACT OF CONNECTOR.

Is there poor contact in TCM connector?

Repair the connector.

3.CHECK TCM.

1) Turn the ignition switch to OFF.

2) Connect all connectors.

3) Erase the memory.

4) Perform the Inspection Mode.

5) Read the DTC.

Is the same DTC displayed again?

Replace the TCM.

4.CHECK ANY OTHER DTC ON DISPLAY.

Are other DTCs displayed?

Go to the diagnosis corresponding to the DTC.

Temporary poor contact occurs.