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

DTC 57 ECM COMMUNICATION CIRCUIT

DTC DETECTING CONDITION:

Communication malfunction between engine control module

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 connectors from the ECM.

3) Measure the resistance between ECM connector terminals.

Connector & terminal

(B136) No. 35 — No. 27:

Is the resistance 60±3 Ω?

Repair the harness between ECM and VDCCM.

2.CHECK POOR CONTACT OF CONNECTOR.

Is there poor contact in ECM connector?

Repair the connector.

3.CHECK ECM.

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 ECM.

4.CHECK ANY OTHER DTC ON DISPLAY.

Are other DTCs displayed?

Go to the diagnosis corresponding to the DTC.

Temporary poor contact occurs.