OEM 2006 Toyota Sienna Neutral Safety Switch

2006 Toyota Sienna Parts Questions & Experts Answers

• Q: How to service and repair the park neutral safety switch on 2006 Toyota Sienna?

  A: The maintenance process for the park neutral position switch begins with removing both the battery and air cleaner assembly followed by separating the transmission control cable assembly by disassembling the nut from the control shaft lever and unbending the cable from the lever and bracket before you detach the cable from its bracket while avoiding contact with the resin guide pipe. The task begins with unconnecting the park/neutral position switch connector followed by removing the nut and washer and control shaft lever. Then use a screwdriver to pry up the lock plate before removing the lock nut and lock plate to extract the switch after detached two bolts. The inspection requires applying the parking brake followed by turning on the ignition to check that the engine operates only in N or P position with active Back Up light and reverse warning buzzer in R position only; if a failure occurs check continuity. To inspect the device raise the vehicle then disconnect the connector followed by testing resistance according to the provided specifications throughout all shift lever positions. Adjusting the switch requires loose attachment of the two bolts to position the shift lever at N while aligning the groove to the neutral basic line then holding the switch until tight bolt installation before repeating the operational inspection. For installation, attach the switch to the manual valve shaft, temporarily install the two bolts, place a new lock plate, and tighten the nut to a torque of 6.9 Nm (70 kg-cm, 61 inch lbs.), then temporarily install the control shaft lever, turn it counterclockwise until it stops, then clockwise two notches, remove the lever, align the groove with the neutral basic line, hold the switch, bend the lock plate tabs with a screwdriver, and install the control shaft lever, washer, and nut with a torque of 13 Nm (130 kg-cm, 9 ft. lbs.), followed by connecting the switch connector. The final stage includes three steps: first, secure the control cable to the control shaft lever with the nut tightened to 13 Nm (133 kg-cm, 10 ft. lbs.), second, attach the cable to the bracket through a new clip and third, execute the park/neutral position switch assembly operational adjustment followed by battery and air cleaner assembly reinstallation.