OEM 2006 Scion xB Throttle Body

2006 Scion xB Parts Questions & Experts Answers

• Q: How to service and repair the throttle body on 2006 Scion xB?

  A: Service and repair operations on the throttle body must begin with disconnecting the negative battery cable for at least 90 seconds to avoid triggering Air Bag and seat belt pretensioners. The air cleaner assembly requires the MAF meter connector and purge VSV connector separation followed by wire harness clamp detachment and purging of both No. 2 and No. 1 line hoses and ventilation hose. Drain the engine coolant and slide the clamp hooks open before loosening the hose clamp to remove the air cleaner case and filter element along with its 4 bolts. Proceed by loosening the nut which enables the accelerator control cable disconnect. The installation of automatic transaxle requires disconnecting the throttle position sensor connector and removing the transmission oil filler tube along with its O-ring. Begin by removing the connection of IAC valve and throttle position sensor cords (manual transaxle only), next follow steps to disconnect the wire harness clamp and take away the throttle body and accelerator control cable bracket by extracting the bolt and 2 nuts (intake manifold gasket removal not required). The installation requires users to connect the No. 1 and No. 2 water by-pass hoses followed by inserting a new gasket into the intake manifold and securing the throttle body along with accelerator control bracket using a bolt and 2 nuts at 30 N.m (306 kgf.cm, 22 ft.lbf) torque rating before completing the process with wire harness clamp installation and throttle position sensor and IAC valve connector establishment. The transmission oil filler tube subassembly procedure requires new installation of an O-ring on the transmission oil filler tube and a bolt torque of 5.5 N.m (56 kgf.cm, 49 in.lbf) followed by connecting the hose and throttle position sensor and inserting the oil dipstick. Install the accelerator control cable assembly, torqued to 13 N.m (133 kgf.cm, 10 ft.lbf), followed by the air cleaner assembly, securing the air cleaner case to the air cleaner bracket with 3 bolts torqued to 7.8 N.m (80 kgf.cm, 69 in.lbf), connecting the air cleaner inlet to the engine compartment with a bolt torqued to 7.5 N.m (76 kgf.cm, 66 in.lbf), tightening the hose clamp, and reconnecting the MAF meter and purge VSV connectors, attaching the wire harness clamp, and connecting the No. 2 and No. 1 purge line hoses and ventilation hose, then locking the 2 clamp hooks. The end step includes attaching the cable to the negative battery terminal followed by engine coolant addition and a search for any engine coolant leakage.