FUEL INJECTION (FUEL SYSTEMS)(H4DO) > Throttle Body
INSPECTION
1. THROTTLE SENSOR (METHOD WITH CIRCUIT TESTER)
1. Remove the glove box. Glove Box > REMOVAL">
2. Turn the ignition switch to ON. (engine OFF)
3. Measure the voltage between ECM connector terminals.


(A) | To ECM connector |
Throttle sensor | Accelerator pedal | Terminal No. | Standard |
Main | Not depressed (full closed) | 18 (+) and 29 (−) | Approx. 0.6 V |
Depressed (full opened) | Approx. 4.0 V | ||
Sub | Not depressed (full closed) | 28 (+) and 29 (−) | Approx. 1.5 V |
Depressed (full opened) | Approx. 4.2 V |
4. After inspection, install the related parts in the reverse order of removal.
2. THROTTLE SENSOR (METHOD WITH SUBARU SELECT MONITOR)
1. Turn the ignition switch to ON. (engine OFF)
2. Read the throttle opening angle signal and voltage of throttle sensor using Subaru Select Monitor. Subaru Select Monitor > OPERATION">
Throttle sensor | Throttle opening angle signal | Standard |
Main | 0.0% | Approx. 0.6 V |
100.0% | Approx. 4.0 V | |
Sub | 0.0% | Approx. 1.5 V |
100.0% | Approx. 4.2 V |
3. OTHER INSPECTIONS
1. Check that the throttle body has no deformation, cracks or other damages.
2. Check that the preheater hose has no cracks, damage or loose part.
Throttle body
RemovalFunction check Operation
BODY CONTROL SYSTEM (DIAGNOSTICS) > Function CheckOPERATIONNOTE:In order to check the body integrated unit function, inspect the body integrated unit and actuator using Subaru Select Monitor without operating switches.1. On «Start» display, select «Diagnosis».2. On «Vehicle selection» displ ...
Occupant detection system
The occupant detection system sensor is
installed under the seat upholstery and
monitors the physique and posture of the
front passenger. Using this information,
the occupant detection system determines
whether the front passenger's SRS frontal
airbag should be deployed or not.
If the front ...
After driving
Always check your brakes for effectiveness
immediately after driving in sand,
mud or water. Do this by driving slowly
and stepping on the brake pedal. Repeat
that process several times to dry out the
brake discs and brake pads.
After driving through tall grass, mud,
rocks, sand, riv ...