MODELS WITH EyeSight

Wiring diagram: 

• Non-turbo model

  Vehicle dynamics control system Ref. to WIRING SYSTEM>Vehicle Dynamics Control System>WIRING DIAGRAM>NON-TURBO MODEL .

  Fig 1: Non-Turbo Model VDC System Wiring Diagram (Model With Eyesight)

  Courtesy of SUBARU OF AMERICA, INC.
• Turbo model

  Vehicle dynamics control system Ref. to WIRING SYSTEM>Vehicle Dynamics Control System>WIRING DIAGRAM>TURBO MODEL .

Fig 2: Turbo Model VDC System Wiring Diagram (Model With Eyesight)

Courtesy of SUBARU OF AMERICA, INC.

1. INTERVIEW CUSTOMERS. 

   Check if the vehicle ran the road with banks or sandy surface (which does not mean a dirt road).

   Did the vehicle run the road with banks or sandy surface (which does not mean a dirt road)?

   • Yes  : VDCCM&H/U may record DTC when the vehicle ran the road with banks or sandy surface (which does not mean a dirt road).
   • No  : Go to 2. 
2. CHECK YAW RATE & G SENSOR INSTALLATION. 

   Is the yaw rate & G sensor installation bolt tightened to 7.5 N.m (0.76 kgf-m, 5.5 ft-lb)?

   • Yes  : Go to 3. 
   • No  : Tighten the yaw rate & G sensor installation bolt.
3. CHECK POWER SUPPLY OF YAW RATE & G SENSOR. 
   1. Turn the ignition switch to OFF.
   2. Disconnect the connector from yaw rate & G sensor.
   3. Turn the ignition switch to ON.
   4. Measure the voltage between yaw rate & G sensor and chassis ground.

      Connector & terminal 

      (B230) No. 1 (+) - Chassis ground (-):

   Is the voltage 10 - 15 V?

   • Yes  : Go to 4. 
   • No  : Repair the yaw rate & G sensor power supply circuit.
4. CHECK YAW RATE & G SENSOR GROUND CIRCUIT. 

   Measure the resistance between yaw rate & G sensor and chassis ground.

   Connector & terminal 

   (B230) No. 4 - Chassis ground:

   Is the resistance less than 10 Ω?

   • Yes  : Go to 5. 
   • No  : Repair the yaw rate & G sensor ground circuit.
5. CHECK OUTPUT OF YAW RATE & G SENSOR WITH SUBARU SELECT MONITOR. 
   1. Drive the vehicle on a flat road.
   2. Park the vehicle straight.
   3. Using the Subaru Select Monitor, select Data monitor. Ref. to BRAKE CONTROL (DIAGNOSTICS)>Subaru Select Monitor>OPERATION>DATA MONITOR .
   4. Read [Yaw Rate Sensor] indicated on the display screen.

   Is the reading of [Yaw Rate Sensor] -4 - 4 deg/s?

   • Yes  : Go to 6. 
   • No  : Replace the yaw rate & G sensor. Ref. to VEHICLE DYNAMICS CONTROL (VDC)>Yaw Rate and G Sensor .
6. CHECK YAW RATE & G SENSOR. 
   1. Turn the ignition switch to OFF.
   2. Connect all connectors.
   3. Clear the memory. Ref. to BRAKE CONTROL (DIAGNOSTICS)>Clear memory .
   4. Perform the Inspection Mode. Ref. to BRAKE CONTROL (DIAGNOSTICS)>Inspection Mode .
   5. Read the DTC. Ref. to BRAKE CONTROL (DIAGNOSTICS)>Read Diagnostic Trouble Code (DTC) .

   Is the same DTC displayed?

   • Yes  : Go to  7.
   • No  : Go to  8.
7. CHECK VDCCM&H/U. 
   1. Turn the ignition switch to OFF.
   2. Replace the yaw rate & G sensor. Ref. to VEHICLE DYNAMICS CONTROL (VDC)>Yaw Rate and G Sensor .
   3. Clear the memory. Ref. to BRAKE CONTROL (DIAGNOSTICS)>Clear memory .
   4. Perform the Inspection Mode. Ref. to BRAKE CONTROL (DIAGNOSTICS)>Inspection Mode .
   5. 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  9.
8. 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.
9. 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  : Malfunction is found in original yaw rate & G sensor.