Throttle Position Sensor: V6: 4Runner
WARNING: This page does not describe the selected car, but rather 10 other vehicles, including the 2003 Toyota Tundra, 2003 Toyota Tacoma, 2003 Toyota Sienna, 2003 Toyota Sequoia, and 2003 Toyota Land Cruiser. However, it is still accessible from the selected car via links, so may be relevant.
For inspection of Throttle Position (TP) sensor, see DTC P0120, P0122, P0123, P0220, P0222, P0223 & P2135: THROTTLE/PEDAL POSITION SENSOR/SWITCH "A"/"B" CIRCUIT PROBLEM under DIAGNOSTIC TESTS in SELF-DIAGNOSTICS - 4RUNNER V6 article.