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Quick Links: 2007 Tundra with 3000 miles - computer codes going crazy - help please How many u-joints? Differential Fluid Omg, these tail lights. Hooke Road Bumper Power outlet fuse keeps blowing

A.D.D. not functioning on 2008 Tundra SR5 4x4

Discussion in '2nd Gen Tundras (2007-2013)' started by azcoues, Jan 22, 2023.

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Jan 22, 2023 at 1:52 PM

#1

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azcoues [OP] New Member

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Oct 15, 2020

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Vehicle:

2007 Tundra 5.7 crewmax 4x4

Hello, I am looking for any information that would list all the grounding point locations on a 2008 Tundra SR5 4x4. Some type of vehicle view or schematic. I have issue with low voltage into the ADD. I am thinking its a loose ground? the relay behind the dash, or the ECU? Any ideas? The manufacture indicates 10-14 volts needed to operate the ADD correctly. I am seeing 4.4-8.8 volts routinely. Any help out there?????

azcoues, Jan 22, 2023

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Feb 17, 2023 at 5:03 PM

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shannon New Member

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shannon

Asheville, NC

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2010 DC

Hey! Did you figure out anything on this? Do you know where the relay is for the ADD? I think I might have a similar problem.

shannon, Feb 17, 2023

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