Pressing The Info Switch Does Not Change The Screen

Detecting condition: 

Communication circuit or MFD is abnormal.

Wiring diagram: 

• Impreza model
  • Multi-function display (MFD) system Ref. to WIRING SYSTEM (IMPREZA MODEL)>MULTIFUNCTION DISPLAY (MFD) SYSTEM>WIRING DIAGRAM .
  • CAN communication system Ref. to WIRING SYSTEM (IMPREZA MODEL)>CAN COMMUNICATION SYSTEM>WIRING DIAGRAM .

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• Crosstrek model (except for hybrid)
  • Multi-function display (MFD) system Ref. to WIRING SYSTEM (CROSSTREK MODEL (EXCEPT FOR HEV))>MULTI-FUNCTION DISPLAY (MFD) SYSTEM>WIRING DIAGRAM .
  • CAN communication system Ref. to WIRING SYSTEM (CROSSTREK MODEL (EXCEPT FOR HEV))>CAN COMMUNICATION SYSTEM>WIRING DIAGRAM .

Courtesy of SUBARU OF AMERICA, INC.

• Crosstrek model (hybrid)
  • Multi-function display (MFD) system Ref. to WIRING SYSTEM (CROSSTREK MODEL (HEV))>MULTI-FUNCTION DISPLAY (MFD) SYSTEM>WIRING DIAGRAM .
  • CAN communication system Ref. to WIRING SYSTEM (CROSSTREK MODEL (HEV))>CAN COMMUNICATION SYSTEM>WIRING DIAGRAM .

Courtesy of SUBARU OF AMERICA, INC.

1. CHECK INFO SWITCH CIRCUIT  .
   1. Turn the ignition switch to OFF.
   2. Disconnect the MFD connector.
   3. Using a tester, measure the resistance between MFD connector and chassis ground.

      Connector and terminal 

      (i122) No. 15 - Chassis ground:

   Is the resistance less than 10 Ω when switch is pushed? Is the resistance 10 kΩ or more when switch is not pushed?

   Yes:  Replace the MFD. Ref. to INSTRUMENTATION/DRIVER INFO>MULTI-FUNCTION DISPLAY (MFD) .

   No:  Go to  2.

2. CHECK INFO SWITCH  .

   Perform the inspection of INFO switch unit. Ref. to INSTRUMENTATION/DRIVER INFO>SWITCHES AND HARNESS>INSPECTION .

   Is the check result OK?

   Yes:  Repair or replace the open circuit of harness.

   No:  Replace the INFO switch.