Vehicle Signal

On Service Menu, click "Vehicle Signal" to display the following items.

• Battery voltage: Status of the battery voltage signal input can be checked.

  Measure the battery voltage using a tester. System is normal when the indicated voltage is almost equivalent to the tester value. When the indicated voltage is different from the tester value, perform inspection for the power supply circuit of main unit.

• IG: Status of the IG signal input can be checked.

  Turn the ignition switch to ON, and check that the IG indication appears as ON. If the indication does not appear as ON, check the IG signal line.

• PKB: Status of the parking brake signal input can be checked.
• REV: Status of the reverse range signal input can be checked.
  1. Before starting inspections, check the safety around the rear end of the vehicle and then turn the ignition switch to ON.
  2. Pull the parking brake switch and depress the brake pedal, then place the select lever in reverse.
  3. Check that ON is displayed in REV.

     ON: Normal.

     OFF: Abnormal. Check the signal line and connector. If no faulty is found, the unit itself may be faulty.

• Steering: Status of the steering angle signal input can be checked.
• Speed: Status of the vehicle speed signal input can be checked.
  1. Before starting inspections, check the safety around the vehicle. (Lift up the vehicle as necessary.)
  2. When VDC CM detects DTC, perform the clear memory of [Brake Control] using the Subaru Select Monitor. Refer to COMMON (DIAG)>CLEAR MEMORY .
  3. Drive the vehicle at 9 km/h (6 MPH) or more.
  4. Check that SPD indicates vehicle speed that is almost equivalent to the figure displayed on the combination meter.
  5. Vehicle speed is not displayed. Or, when different vehicle speed is indicated, check if CAN system DTC is stored. If so, perform the diagnosis according to the DTC. When CAN system DTC is not stored, check if the DTC related to the vehicle sensor is stored for the VDC system, and perform inspection according to the procedure. If no fault is found with the CAN system and vehicle speed sensor, and the vehicle speed is displayed on the combination meter, the unit itself may be faulty.
• ILL+: Status of the illumination signal input can be checked.
  1. Before starting inspections, turn the ignition switch to ON.
  2. Set the lighting switch to TAIL (small) position.

     Make sure that the bright switch is not turned ON at this time.

  3. Check that ON lights in ILL+ and then the screen becomes dim.

     ON: Normal.

     OFF: Abnormal. Check the signal line and connector. If no faulty is found, the unit itself may be faulty.

• Bright: Status of the Bright signal input can be checked.

  Operate the dial-type bright switch next to the wheel steering. System is normal when the signal indicates ON. If the signal does not indicate ON, check the bright switch.

  NOTE: The following shows information to be displayed and its description.

  Item	Display	Contents
  Battery voltage	Status of battery voltage	0 [V] - 25 [V] (Minimum unit: 0.1 [V])
  IG	ON	IG power supply ON
  	OFF	IG power supply OFF
  PKB	ON	PKB signal ON
  	OFF	PKB signal OFF
  REV	ON	REV signal ON
  	OFF	REV signal OFF
  Steering	Steering Angle	-719.9 [deg] - 719.9[deg]
  Speed	Status of vehicle speed	0 [km/h] - 300 [km/h] (Minimum unit 1 [km/h])
  ILL+	ON	ILL+ signal ON
  	OFF	LL+ signal OFF
  Bright	ON	Bright switch signal ON
  	OFF	Bright switch signal OFF