Diagnosis & Repair (With Hand-Held Tester)

WARNING: This page is about a different car, the 2003 Lexus ES 300. However, it is still accessible from the selected car via links, so may be relevant.

For wiring diagram, see Fig 1. For diagnosis and repair, see Fig 2 and Fig 3 .

Fig 1: Throttle Body Assembly Wiring Diagram

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Fig 2: Diagnosis & Repair Of Throttle Actuator Control Motor Circuit (1 Of 2)

Fig 3: Diagnosis & Repair Of Throttle Actuator Control Motor Circuit (2 Of 2)