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

DTC C0041 ECM

DTC DETECTING CONDITION:

Defective VDCCM&H/U

TROUBLE SYMPTOM:

• ABS does not operate.

• EBD does not operate.

• VDC does not operate.

WIRING DIAGRAM:

STEPCHECKYESNO

1.CHECK THE VDCCM&H/U GROUND CIRCUIT.

1) Turn the ignition switch to OFF.

2) Disconnect the connector from the VDCCM&H/U.

3) Measure the resistance between VDCCM&H/U and chassis ground.

Connector & terminal

(B310) No. 25 — Chassis ground:

Is the resistance less than 0.5 Ω?

Repair the VDCCM&H/U ground harness.

2.CHECK POOR CONTACT OF CONNECTORS.

Is there poor contact of the connector between the battery, ignition switch and VDCCM&H/U?

Repair the connector.

3.CHECK CAUSE OF SIGNAL NOISE.

Are the radio wave devices and electric components installed correctly?

Install the radio wave devices and electric components properly.

4.CHECK CAUSE OF SIGNAL NOISE.

Is there a noise source (such as an antenna) installed near the sensor harness?

Install the noise source apart from the sensor harness.

5.CHECK THE VDCCM&H/U.

1) Connect all the connectors.

2) Clear the memory.

3) Perform the Inspection Mode.

4) Read the DTC.

Is the same DTC displayed?

Replace the VDCCM only.

6.CHECK OTHER DTC DETECTION.

Is any other DTC displayed?

Perform the diagnosis according to DTC.

Temporary poor contact occurs.