Diagnosis & Repair
WARNING: This page is about a different car, the 2002 Toyota Land Cruiser. However, it is still accessible from the selected car via links, so may be relevant.
- Disconnect electrical connector at throttle control motor located on side of throttle body. See Figure. Using ohmmeter, check resistance between terminals No. 1 and 2 on electrical connector on throttle control motor. See Figure. Resistance should be .3-100.0 ohms at 68°F (20°C). If resistance is within specification, go to next step. If resistance is not within specification, replace throttle control motor. See THROTTLE BODY under FUEL SYSTEMS in REMOVAL, OVERHAUL & INSTALLATION - V6 & V8 article.
- Remove air inlet hose from throttle body. Visually inspect throttle body for foreign material which may be caught between throttle valve and throttle body. If foreign material exists, remove foreign material and clean throttle body as necessary. If foreign material does not exist, replace throttle body. See THROTTLE BODY under FUEL SYSTEMS in REMOVAL, OVERHAUL & INSTALLATION - V6 & V8 article.