NON-TURBO MODEL (WITHOUT EyeSight AND X MODE): Wiring Diagram

Stop light system Ref. to WIRING SYSTEM>Stop Light System>WIRING DIAGRAM>WITHOUT EyeSight AND X MODE .

Fig 1: Non-Turbo Model Stop Light System Wiring Diagram (BLS ON Stuck)

Courtesy of SUBARU OF AMERICA, INC.

1. INTERVIEW CUSTOMERS. 

   Make sure that the operation was performed in which accelerator pedal and brake pedal were depressed simultaneously (with depressing brake pedal with left foot).

   Were the acceleration pedal and brake pedal depressed simultaneously?

   • Yes  : System is normal. (DTC may be recorded if the brake pedal is always depressed while driving.)
   • No  : Go to 2. 
2. CHECK STOP LIGHT SWITCH. 
   1. Turn the ignition switch to OFF.
   2. Disconnect the stop light switch connector.
   3. Measure the resistance of stop light switch terminals.

      Terminals 

      No. 1 -No. 2:

   Is the resistance 1 MΩ or more when stop light switch is OFF (when pedal is not depressed)?

   • Yes  : Go to 3. 
   • No  : Replace the stop light switch. Ref. to BRAKE>Stop Light Switch .
3. CHECK STOP LIGHT SWITCH HARNESS. 
   1. Disconnect the connector from the VDCCM&H/U.
   2. Measure the resistance between VDCCM&H/U connector and chassis ground.

      Connector & terminal 

      (B310) No. 6 - Chassis ground:

   Is the resistance less than 1 MΩ?

   • Yes  : Go to 4. 
   • No  : Repair the stop light switch circuit.
4. CHECK VDCCM&H/U. 
   1. Connect all connectors.
   2. Clear the memory. Ref. to BRAKE CONTROL (DIAGNOSTICS)>Clear memory .
   3. Perform the Inspection Mode. Ref. to BRAKE CONTROL (DIAGNOSTICS)>Inspection Mode .
   4. Read the DTC. Ref. to BRAKE CONTROL (DIAGNOSTICS)>Read Diagnostic Trouble Code (DTC) .

   Is the same DTC displayed?

   • Yes  : Replace the VDCCM only. Ref. to VEHICLE DYNAMICS CONTROL (VDC)>VDC Control Module and Hydraulic Control Unit (VDCCM&H/U)>REPLACEMENT .
   • No  : Go to 5. 
5. CHECK DETECTION OF OTHER DTCS FOR VDC. 

   Ref. to BRAKE CONTROL (DIAGNOSTICS)>Read Diagnostic Trouble Code (DTC) .

   Is any other DTC displayed?

   • Yes  : Perform the diagnosis according to DTC. Ref. to BRAKE CONTROL (DIAGNOSTICS)>List of Diagnostic Trouble Code (DTC) .
   • No  : Currently, it is normal. There may have been a temporary poor contact in the harness and connector or a temporary noise interference.