4x4 troubleshooting.


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Matthew Graves

5+ Year Member

Joined
Jun 10, 2016
Messages
1
Points
501
Vehicle Year
2002
Transmission
Automatic
Hello guys I'm rather new, have always read these forums and figured I'd join since I'm on here all the time.

Well here's the problem:

My 4x4 is not working. I got a new transfer case motor last fall and I went to get a new selector switch to see if that was the problem but it still wouldn't do that normal click noise at the CM. the 4 high and 4 low lights turn on when I turn the truck over so I know the CM works. I ended up testing the wires between the CM and the motor and 2 of the wires didn't test right. My mechanic came up with the trouble codes

P1816- Transmission neutral safety switch circuit failure
&
P1867- Transfer case contact plate general circuit failure.

I was wondering if anyone might know what might be wrong before I rip into all those wires under the dash being as I'm not sure how they are ran.
 

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