DTC 51: Idle Signal Circuit

WARNING: This page is about a different car, the 2002 Toyota Highlander. However, it is still accessible from the selected car via links, so may be relevant.

For DTC 51 diagnosis, see Fig 1 and Fig 2 .

Fig 1: Diagnosing DTC 51 (1 Of 2)

Fig 2: Diagnosing DTC 51 (2 Of 2)