31918AA090 Subaru SWITCH-INHIBITOR, Price: 38.78$, Weight: 0.079kg


Make Number Name Availability Weight, kg Ship in, Days Price

Subaru

31918AA090

SWITCH-INHIBITOR

63

0.079

 Dispatch 24h

38.78$

 

Originals

Make Number Name Availability Weight, kg Processing, days Price  
Subaru
31918AA090 
SWITCH-INHIBITOR
63
0.091
2-3
32.32$
 

Compatibility

BodyEngineVehicle GradeMarketModel Year FromTrainGearboxDiagram
XUV(CROSSOVER 7)2.5L EMPI DOHC NAX-BREAKJapan02.2017フルタイム4リンクドウトルクコンバータシキジドウムダンヘンソクキ View
BodyEngineVehicle GradeMarketModel Year FromModel Year ToTrainDiagram
WAGON2500CC EMPI DOHC TURBOXT LTD PLUSUSA05.201111.2012FULLTIME 4WD View
BodyEngineVehicle GradeMarketModel Year FromModel Year ToTrainDiagram
WAGON2000CC DOHC NA20 SPORT LIMITED EYESIGHTUSA08.201410.2016FULLTIME 4WD View
BodyEngineVehicle GradeMarketModel Year FromModel Year ToTrainDiagram
WAGON OUTBACK2500CC EMPI SOHC NA25I LIMITEDUSA03.200804.2009FULLTIME 4WD View
BodyEngineVehicle GradeMarketModel Year FromTrainGearboxDiagram
SEDAN2000CC DOHC DITWRX-LIMITED WITH LIP ESUSA01.2017FULLTIME 4WDCONTINUOUS VARIABLE GEAR View
BodyEngineVehicle GradeMarketModel Year FromTrainGearboxDiagram
ワゴン2.0L EMPI DOHC DITSTI SPORT EYESIGHTJapan02.2017フルタイム4リンクドウトルクコンバータシキジドウムダンヘンソクキ View
BodyEngineVehicle GradeMarketModel Year FromModel Year ToTrainDiagram
XUV2000CC DOHC NA20I LIMITED EYESIGHTUSA09.201406.2017FULLTIME 4WD View

Inhibitor Switch / Transmission Range Sensor for Subaru

This safety-critical gear position switch tells the car which range you select (P–R–N–D) and allows the engine to start only in Park or Neutral. It also turns on the reverse lights and sends the correct signal to the transmission control unit for smooth, safe shifting. Replacing a worn unit restores proper start authorization, clear range display, and reliable drivability.

Why you need it

Over time, moisture, dirt, and wear on the internal contacts cause misreads. That leads to hard shifts, no-crank in Park, or random gear indicators. A fresh unit prevents transmission confusion and protects the starter and gearbox.

How it works ⚙️

Mounted on the selector shaft of the automatic gearbox, a multi-track contact plate changes circuits as you move the lever. The module sends a clean position signal to ECU/TCU, completes the starter interlock in P/N, and powers the backup lamp circuit. Sealed housing and precise indexing keep it accurate.

What happens if it fails ❗

  • No crank in Park, starts only in Neutral
  • Wrong or flickering gear display, harsh or delayed shifts, limp mode
  • Reverse lights inoperative
  • Check Engine light (codes like P0705/P0852)
  • Poor fuel economy and safety risk at parking

Tech notes

Direct-fit. Set lever to Neutral, align the marks, snug bolts to spec, then recheck start and reverse light. Clear codes after install. Weatherproof the connector for long life.

Compatibility

  • Legacy
  • Impreza
  • XV
  • Forester
  • WRX/Levorg
  • Exiga
  • WRX