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-Fig 4 .

Fig 1: Wiring Diagram Engine Coolant Temperature Circuit

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Fig 2: Diagnosis & Repair Engine Coolant Temperature Circuit (Step 1)

Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

Fig 3: Diagnosis & Repair Engine Coolant Temperature Circuit (Step 2-3)

Fig 4: Diagnosis & Repair Engine Coolant Temperature Circuit (Step 4-5)