Question about 1993 Toyota 4Runner
We can't seem to find the fuel pump relay switch on my husbands 91 toyota truck! Does it even exist? Or is it called a circuit open relay switch? I've searched all over the internet and can't find any help....can you help us?
To my knowledge, there is no separate switch to activate the fuel pump. The fuel pump is one of the many electrical devices powered by the ignition switch when turned on. This is necessary since the fuel pump must be active if and when the engine is running. Due to electrical design, that is to reduce current passing through the ignition switch, a relay is used to along with the ignition switch.
Often, this relay would be among the many relays in the fuse/relay box in the engine compartment pretty close to the battery. However, in your particular model and to my knowledge, it is under the dashboard. More particularly, the fuel pump relay is under and to the right of the glove box above the ECU. There would be two (2) other relays in that area and the fuel pump relay is the last almost hidden.
Hope this be of initial help/idea. Pls post back how things turned up or should you need additional information.
Good luck and kind regards.
Thank you for using FixYa.
Posted on Jul 24, 2008
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