Diagnosis & Repair

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: Knock Sensor Circuit Wiring Diagram

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Fig 2: Diagnosis & Repair Of Knock Sensor Circuit (Step 1)

Fig 3: Diagnosis & Repair Of Knock Sensor Circuit (Step 2-3)