Diagnosis & Repair (Using Lexus Scan Tool)

WARNING: This page is about a different car, the 2003 Lexus GX 470. 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 Position Sensor Circuit Wiring Diagram

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Fig 2: Diagnosis & Repair Of Throttle Position Sensor Circuit (Step 1-2)

Fig 3: Diagnosis & Repair Of Throttle Position Sensor Circuit (Step 3-5)