P1000 Diff control cable on Trans shifter

Hawk53

Hawk53

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Lifetime Member
Jan 7, 2014
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Alberta Canada
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  1. 1000-3
I am wondering if someone can tell me what is purpose of the diff lock cable on the sub transmission shifter? I know it goes to the rear diff control box. But why does the diff control box need an input from the gear selector?
I have looked for a principle of operation in the service manual but don’t see anything there.
I am thinking it is probably to make sure the rear diff is in 2 wheel drive and not turf mode when put into park. I cannot think of any other reason.
Thought I would ask on here before I started digging.
Thanks in advance.
 
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