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

DTC C0064 NORMAL CLOSING VALVE 2 MALFUNCTION

DTC DETECTING CONDITION:

• Defective harness connector

• Defective VDCH/U solenoid valve

TROUBLE SYMPTOM:

• ABS does not operate.

• EBD does not operate.

• VDC does not operate.

WIRING DIAGRAM:

STEPCHECKYESNO

1.CHECK VDCCM&H/U INPUT VOLTAGE.

1) Turn the ignition switch to OFF.

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

3) Run the engine at idle.

4) Measure the voltage between VDCCM&H/U connector and chassis ground.

Connector & terminal

(B310) No. 28 (+) — Chassis ground (−):

Is the voltage 10 — 15 V?

Repair the power supply circuit.

2.CHECK VDCCM&H/U GROUND CIRCUIT.

1) Turn the ignition switch to OFF.

2) Measure the resistance between VDCCM&H/U connector 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.

3.CHECK POOR CONTACT OF CONNECTORS.

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

Repair the connector.

4.CHECK VDCCM&H/U.

1) Connect all connectors.

2) Clear the memory.

3) Perform the Inspection Mode.

4) Read the DTC.

Is the same DTC displayed?

Replace the VDCCM&H/U.

5.CHECK OTHER DTC DETECTION.

Is any other DTC displayed?

Perform the diagnosis according to DTC.

Temporary poor contact occurs.