P0500

AS: DTC P0500 - VEHICLE SPEED SENSOR MALFUNCTION

DTC DETECTING CONDITION:
- Immediately at fault recognition

CAUTION: After repair or replacement of faulty parts, conduct CLEAR MEMORY MODE and INSPECTION MODE. Refer to How to Clear Diagnostic Trouble Codes. Clearing Diagnostic Trouble Codes





WIRING DIAGRAM

10AS1: CHECK TRANSMISSION TYPE.

CHECK: Is transmission type AT?

YES: Go to step 10AS2.

NO: Go to step 10AS3.

10AS2: CHECK DTC P0720 ON DISPLAY.

CHECK: Does the Subaru Select Monitor or OBD-II general scan tool indicate DTC P0720?

YES: Check vehicle speed sensor 2 signal circuit.

NO: Go to step 10AS3.

10AS3: CHECK SPEEDOMETER OPERATION IN COMBINATION METER.

CHECK: Does speedometer operate normally?

YES: Go to step 10AS4.

NO: Check speedometer and vehicle speed sensor.

10AS4: CHECK HARNESS BETWEEN ECM AND COMBINATION METER CONNECTOR.
1. Turn ignition switch to OFF.
2. Disconnect connector from ECM.
3. Turn ignition switch to ON.

Connector & Terminal (B135) No.24 (+) - Chassis Ground (-):

4) Measure voltage between ECM and chassis ground.

CHECK: Is the voltage more than 2 V?

YES: Repair harness and connector.

NOTE:
In this case, repair the following:
- Open circuit in harness between ECM and combination meter connector
- Poor contact in ECM connector
- Poor contact in combination meter connector
- Poor contact in coupling connector (B37)

NO: Go to step 10AS5.

10AS5: CHECK HARNESS BETWEEN ECM AND COMBINATION METER CONNECTOR.
1. Turn ignition switch to OFF.
2. Disconnect connector from ECM.

Connector & Terminal (B135) No.24 - (i12) No.11:

3. Measure resistance of harness between ECM connector and chassis ground.

CHECK: Is the resistance less than 10 ohm?

YES: Repair ground short circuit in harness between ECM and combination meter connector.

NO: Repair poor contact in ECM connector..

NOTE:
In this case, repair the following:
- Open circuit in harness between ECM and combination meter connector
- Poor contact in ECM connector
- Poor contact in combination meter connector