System Is Reset

Diagnosis  :

Influence by external devices, power supply circuit malfunction, unit body malfunction

Wiring diagram  :

Combination meter system Ref. to WIRING SYSTEM>COMBINATION METER SYSTEM>WIRING DIAGRAM .

Courtesy of SUBARU OF AMERICA, INC.

1. BASIC INSPECTION  .

   Before performing the diagnosis, perform basic inspection. Ref. to COMBINATION METER (DIAGNOSTICS)>GENERAL DESCRIPTION>INSPECTION .

   NOTE:

   • Check the battery and its installation condition.
   • Check the related fuse.
   • Visually check that the related connectors are properly connected.

     Also, check the related ground terminal for looseness and corrosion.

   Is the check result OK?

   Yes  : GO TO  2.

   No  : Repair the defective part.

2. CHECK ENVIRONMENTAL CONDITION  .

   Check if any external device which emits strong electromagnetic waves and noises, such as a radio antenna, is installed inside the vehicle.

   Is there an external device?

   Yes  : Remove the external device to check the operation.

   If the fault is not fixed: GO TO  3.

   No  : GO TO  3.

3. CHECK BATTERY  .

   Check the battery. Ref. to STARTING/CHARGING SYSTEMS (H4DO)>BATTERY>INSPECTION .

   Is the check result OK?

   Yes  : GO TO  4.

   No  : Charge or replace the battery.

   After the repair, GO TO  7.

4. CHECK CONNECTOR  .
   1. Turn the ignition switch to OFF.
   2. Check if the connector is connected to the combination meter and there is poor contact in the connector.

   Is the check result OK?

   Yes  : GO TO  5.

   No  : Engage the connector properly, or repair the faulty portion and check the operation.

   After the repair, GO TO  7.

5. CHECK POWER SUPPLY CIRCUIT  .
   1. Disconnect the connector from the combination meter.
   2. Turn the ignition switch to ON.
   3. Use a tester to measure the voltage between the combination meter connector and chassis ground.
      NOTE: Because a temporary open or short circuit may be the cause, shake the harness during this check process.

      Connector & terminal 

      (i97) No. 1 (+) - Chassis ground (-)  :

      (i97) No. 2 (+) - Chassis ground (-)  :

   Is the voltage 10 - 16 V?

   Yes  : GO TO  6.

   No  : Repair or replace the open circuit of harness.

   After the repair, GO TO  7.

6. CHECK GROUND CIRCUIT (OPEN)  .

   Use a tester to measure the resistance between the combination meter connector and ground.

   NOTE: Because a temporary open or short circuit may be the cause, shake the harness during this check process.

   Connector & terminal 

   (i97) No. 40 - Chassis ground  :

   Is the resistance less than 1 Ω?

   Yes  : Replace the combination meter. Ref. to INSTRUMENTATION/DRIVER INFO>COMBINATION METER .

   After replacement, GO TO  7.

   No  : Repair or replace the open circuit of harness.

   After the repair, GO TO  7.

7. CHECK REPAIR  .

   Perform operation check to check if the trouble has been solved.

   Is the check result OK?

   Yes  : Finish the diagnosis.

   No  : Perform the diagnosis according to the basic diagnostic procedure. Ref. to COMBINATION METER (DIAGNOSTICS)>BASIC DIAGNOSTIC PROCEDURE>PROCEDURE .