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

DTC C0072 VOLTAGE INPUTTED TO YAW RATE SENSOR EXCEEDS SPECIFICATION

DTC DETECTING CONDITION:

Defective yaw rate sensor

TROUBLE SYMPTOM:

VDC does not operate.

WIRING DIAGRAM:

• LHD model

• RHD model

STEPCHECKYESNO

1.CHECK YAW RATE & LATERAL G SENSOR POWER SUPPLY.

1) Turn the ignition switch to OFF.

2) Disconnect the connector from yaw rate & lateral G sensor.

3) Turn the ignition switch to ON.

4) Measure the voltage between yaw rate & lateral G sensor and chassis ground.

Connector & terminal

(B230) No. 1 (+) — Chassis ground (−):

Is the voltage 10 — 15 V?

Repair the yaw rate & lateral G sensor power supply circuit.

2.CHECK YAW RATE & LATERAL G SENSOR GROUND CIRCUIT.

Measure the resistance between the yaw rate & lateral G sensor and chassis ground.

Connector & terminal

(B230) No. 4 — Chassis ground:

Is the resistance less than 0.5 Ω?

Repair the yaw rate & lateral G sensor ground circuit.

3.CHECK YAW RATE & LATERAL G SENSOR.

1) Turn the ignition switch to OFF.

2) Connect all connectors.

3) Clear the memory.

4) Perform the Inspection Mode.

5) Read the DTC.

Is the same DTC displayed?

Replace the yaw rate & lateral G sensor.

4.CHECK OTHER DTC DETECTION.

Is any other DTC displayed?

Perform the diagnosis according to DTC.

Temporary poor contact occurs.