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

DTC C0076 CLUTCH SIGNAL

DTC DETECTING CONDITION:

Clutch signal malfunction

TROUBLE SYMPTOM:

Hill start assist does not operate.

WIRING DIAGRAM:

Gasoline engine model

Diesel engine model

STEPCHECKYESNO

1.CHECK LAN SYSTEM.

Perform the diagnosis for LAN system.

Is there any fault in LAN system?

Perform the diagnosis according to DTC for LAN system.

2.CHECK CLUTCH SIGNAL USING SUBARU SELECT MONITOR.

1) Select {Current Data Display & Save} in Subaru Select Monitor.

2) Read the display of the clutch switch signal.

Is OFF displayed while the clutch pedal is released, is ON displayed when it is depressed?

3.CHECK ECM CLUTCH SIGNAL USING SUBARU SELECT MONITOR.

1) Select {Current Data Display & Save} of the ECM in the Subaru Select Monitor.

2) Read the display of the clutch switch signal.

Is OFF displayed while the clutch pedal is released, is ON displayed when it is depressed?

4.CHECK HARNESS BETWEEN ECM AND CLUTCH SWITCH.

1) Turn the ignition switch to OFF.

2) Disconnect the connector from the ECM and the clutch switch.

3) Measure the resistance of harness between the ECM and clutch switch connector.

Connector & terminal

Gasoline engine model

(B136) No. 25 — (B107) No. 2:

Diesel engine model

(B134) No. 28 — (B107) No. 2:

Is the resistance less than 0.5 Ω?

Repair the clutch switch power supply circuit. Or, replace the clutch switch.

Repair the harness between the ECM and clutch switch connector.

5.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 only.

6.CHECK OTHER DTC DETECTION.

Is any other DTC displayed?

Perform the diagnosis according to DTC.

Temporary poor contact occurs.