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87 electric 4wd button out


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None of them are ground

 

1 should have 12v with key on.

 

the other two are the signal wires that operate the 2 solenoids that control opertaion of 4wd.

 

Signal to one = solenoid to activate 4wd

 

to the other = solenoid to disengage 4wd

 

Use a MM or test light to find the constant 12v

 

Then use trail and error to determine which is which for the others.

 

If you REEEEEAAAAALLLLLY need wire colors I'll check for ya tommorow.

 

 

This is for Manual trans. If this is an automatic I can't recall excactly the setup. Again I'll check up tommorow

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