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

DTC C0075 REVERSE SIGNAL

DTC DETECTING CONDITION:

Reverse signal malfunction

TROUBLE SYMPTOM:

Hill start assist does not operate.

WIRING DIAGRAM:

LHD model

RHD 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 REVERSE SIGNAL USING SUBARU SELECT MONITOR.

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

2) Read the display of the reverse signal.

Is OFF displayed when the shift position is in a position other than reverse, and ON when it is placed in reverse?

3.CHECK LIGHTING OF BACK-UP LIGHT.

1) Turn the ignition switch to ON.

2) Set the shift lever to the reverse position.

Does the back-up light illuminate?

Repair the back-up light circuit.

4.CHECK HARNESS BETWEEN BODY INTEGRATED UNIT AND BACK-UP LIGHT SWITCH.

1) Turn the ignition switch to OFF.

2) Disconnect the connector from the body integrated unit and the back-up light switch.

3) Measure the resistance of the harness between the body integrated unit and back-up switch connector.

Connector & terminal

Gasoline non-turbo model, Diesel engine model

(B280) No. 18 — (B24) No. 1:

Gasoline turbo model

(B280) No. 18 — (T13) No. 2:

Is the resistance less than 0.5 Ω?

Replace the back-up light switch.

Repair the harness between the body integrated unit and back-up light 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.