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

DTC 41 ECM

DTC DETECTING CONDITION:

VDCCM malfunction

TROUBLE SYMPTOM:

• ABS does not operate.

• VDC does not operate.

• EBD does not operate.

NOTE:

At this time, the brake warning light illuminates as well as the VDC and ABS warning light.

WIRING DIAGRAM:

STEPCHECKYESNO

1.CHECK GROUND CIRCUIT OF VDCCM.

1) Turn the ignition switch to OFF.

2) Disconnect the connectors from VDCCM.

3) Measure the resistance between VDCCM and chassis ground.

Connector & terminal

(B310) No. 1 — Chassis ground:

(B310) No. 55 — Chassis ground:

Is the resistance less than 0.5 Ω?

Repair the VDCCM ground harness.

2.CHECK POOR CONTACT OF CONNECTOR.

Is there poor contact of the connectors between the battery, ignition switch and VDCCM?

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.

Are causes of the noise (such as an antenna) installed near the sensor harness?

Install the noise sources away from the sensor harness.

5.CHECK VDCCM.

1) Connect all connectors.

2) Erase the memory.

3) Perform the Inspection Mode.

4) Read the DTC.

Is the same DTC displayed again?

Replace the VDCCM.

6.CHECK ANY OTHER DTC ON DISPLAY.

Are other DTCs displayed?

Go to the diagnosis corresponding to the DTC.

Temporary poor contact occurs.