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Front ADD/differential bench test?

Discussion in '2nd Gen Tundras (2007-2013)' started by snvts82, Jan 2, 2024.

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Jan 2, 2024 at 6:26 PM

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snvts82 [OP] New Member

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Nov 22, 2023

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#107307

Messages:

12

Gender:

Male

First Name:

Matthew

Vehicle:

2012 tundra 5.7

Does anyone know which pins I need to hook up on to bench test the front actuator? Installing a new one and believe I may have gotten a bad one.

when switching to 4hi, I can hear the transfer case actuator doing its job but nothing from the ADD.

If I’m thinking correctly, if I have the ADD removed but hooked up to the electrical plug, when I switch to 4hi it should move the actuator correct? When I try that and have it removed and the yoke exposed it doesn’t move at all. I’m wanting to bench test it but don’t want to fry it. If anyone has the diagram for the pins on the connector that would be awesome. Also, when I try put a little pressure to move that yoke (actuate it) it won’t budge at all. I figured with some pressure it should move right?

snvts82, Jan 2, 2024

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