FUEL INJECTION (FUEL SYSTEMS)(H4DOTC DIESEL) > Throttle Body

INSPECTION

1. CHECK WITH CIRCUIT TESTER

1. Turn the ignition switch to OFF.

2. Set the ST between the ECM and body harness.

ST    18460AA010 CHECK BOARD

3. Turn the ignition switch to ON. (engine OFF)

4. Measure the voltage between the check board connector terminals.

Terminals

No. 36 (+) — No. 70 (−):

Standard:

4.24 V

2. FUNCTION CHECK

1. Turn the ignition switch to OFF → ON → OFF.

2. Connect the Subaru Select Monitor to the vehicle.

3. Turn the ignition switch to ON. (engine OFF)

4. Select “Read Current Data For Engine” in the Subaru Select Monitor.

5. When the ignition switch is OFF, read out the display for “Throttle Opening Angle” and “Main Throttle Sensor”.

Standard:

Throttle valve angle (%)

Main throttle sensor voltage (V)

0.8

0.64

79.2

3.78

91

4.24