Question about 2003 Toyota 4Runner

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Body ECU I purchased 2003 4 runner for my daughter. Within a few months the inteior light quit working. Checked all the bulbs, fuses ext. Took it to the dealer for reular service and this problem. Dealer says I need a new Body ECU for $1500.00 Is this a common problem?

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The problem is not 100% solved. I have figured out that the problem is in the ground circut for the "Body ECU" system. The only circut effectfed is the door, ignition switch ilumination. If a ground is forced to the circut it works oK.
What I need is a diagram of the internal workings of the "body ECU". I have not yet removed it but it can be much more than a bunch of relays. By the way tell the guy with SD22 Nissan to search SD22. The sole distributor for that product is located in SanFran.

Posted on Jul 07, 2008

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