Pressing X Mode Switch Does Not Change The X Mode Display In The Combination Meter And Mode Does Not Switch To X Mode: Wiring Diagram

Ref. to WIRING SYSTEM>CVT Control System>WIRING DIAGRAM .

Fig 1: X Mode Switch Wiring Diagram

Courtesy of SUBARU OF AMERICA, INC.

1. CHECK X MODE SWITCH. 
   1. Turn the ignition switch to OFF.
   2. Disconnect the connector from body integrated unit.
   3. Measure the resistance when the X mode switch is operated.

      Connector & terminal 

      (B281) No. 14 - Chassis ground:

   Does the resistance change as below?

   1 MΩ or more → less than 10 Ω

   1. Yes  : Go to  5.
   2. No  : Go to 2. 
2. CHECK HARNESS BETWEEN BODY INTEGRATED UNIT AND X MODE SWITCH CONNECTOR.

   Measure the resistance of harness between the body integrated unit connector and X mode switch connector.

   Connector & terminal 

   (B281) No. 14 - (B185) No. 4:

   Is the resistance less than 10 Ω?

   1. Yes  : Go to  3.
   2. No  : Repair the harness and connector.
      NOTE: In this case, repair the following item:

      • Open circuit of harness between the body integrated unit connector and X mode switch connector
      • Poor contact of connector
3. CHECK HARNESS BETWEEN BODY INTEGRATED UNIT AND X MODE SWITCH CONNECTOR.

   Measure the resistance of harness between X mode switch connector and chassis ground.

   Connector & terminal 

   (B185) No. 4 - Chassis ground:

   Is the resistance 1 MΩ or more?

   1. Yes  : Go to  4.
   2. No  : Repair the ground short circuit of harness between body integrated unit and X mode switch connector.
4. CHECK HARNESS BETWEEN X MODE SWITCH CONNECTOR AND CHASSIS GROUND.

   Measure the resistance between body integrated unit connector and chassis ground.

   Connector & terminal 

   (B185) No. 5 - Chassis ground:

   Is the resistance less than 10 Ω?

   1. Yes  : Repair the poor contact of X mode switch connector. Replace the X mode switch if faulty. Ref. to CONTINUOUSLY VARIABLE TRANSMISSION (TR580)>X MODE Switch . Ref. to CONTINUOUSLY VARIABLE TRANSMISSION(TR690)>X MODE Switch .
   2. No  : Repair the harness and connector.
      NOTE: In this case, repair the following item:

      • Open circuit in harness between X mode switch connector and chassis ground
      • Poor contact of joint connector
5. RECHECK FAULT.
   1. Connect all connectors.
   2. Switch to X mode.

   Is there any fault?

   1. Yes  : Repair poor contact in the body integrated unit connector. Replace the meter case assembly if defective.
   2. No  : The circuit has returned to a normal condition at this time. Reproduce the failure, and then perform the diagnosis.
      NOTE: In this case, temporary poor contact of connector, temporary open or short circuit of harness may be the cause.