4Runner 4.7L

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For throttle position sensor circuit inspection and wiring diagram, see Fig 1 - Fig 5 . For circuit identification, see ENGINE PERFORMANCE in appropriate SYSTEM WIRING DIAGRAMS article in ELECTRICAL. Before replacing ECM, check ECM connectors and ground circuits. See ENGINE CONTROL MODULE POWER & GROUND CIRCUITS under COMPUTERIZED ENGINE CONTROLS. To replace throttle body, see THROTTLE CONTROL MOTOR under MOTORS in REMOVAL & INSTALLATION - V6 & V8.

Fig 1: Testing Throttle Position Sensor - Circuit Description (4Runner 4.7L)

Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

Fig 2: Testing Throttle Position Sensor - Wiring Diagram; Using Hand-Held Tester - Step 1 (4Runner 4.7L)

Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

Fig 3: Testing Throttle Position Sensor Using Hand-Held Tester - Steps 1 Cont.-3 (4Runner 4.7L)

Fig 4: Testing Throttle Position Sensor Using Hand-Held Tester - Steps 3 Cont.-5; Using OBD II Scan Tool - Step 1 (4Runner 4.7L)

Fig 5: Testing Throttle Position Sensor Using OBD II Scan Tool - Steps 1 Cont.-4 (4Runner 4.7L)