12 Valve 2nd Gen Dodge Cummins 94-98 Discussion of 12 Valve 5.9 Liter Dodge Cummins Diesels with P7100 Injection Pumps

Trying to wire up Tc lock switch, no Trans relay in relay center

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Old 03-12-2012, 12:38 PM
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Default Trying to wire up Tc lock switch, no Trans relay in relay center

I have been reading up on the Tc Lock up switch the past week or so and Im pretty sure I crimped on to the right wire it was the thicker black wire with the orange stripe , bottom row four wires to the left from the nut in the middle. But I popped open my relay box behind the driver side battery and I did not find a Trans relay of any kind. Does this mean I have one of the 95s tha needs a reflash? The sticker in the drivers door jamb says 10/94. Thanks

---AutoMerged DoublePost---

Bad connection, I got it working now
 

Last edited by SCHMITTY; 03-12-2012 at 12:38 PM. Reason: Automerged Doublepost
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Old 03-13-2012, 05:52 PM
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Did you run just the ground to the switch or did you run a power wire to it? My cousin was doing his and he added the power to it and fried his pcm. I was going to do mine but was hesitant on it. Any help?
 
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Old 03-13-2012, 06:48 PM
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Ground smaller orange wire with black stripe. I used an extra connector I had from uhaul that splices the wire by just pinching over it. Make sure you have good connections. I used a voltmeter , turned the key on , hit my switch with my tester between the ground coming off the switch to make sure it was working, then test drive it use switch in second gear and up. So tee off of wire 54 with a long wire your going to ground in the cab, wire a switch inline. I used a temporary interrupter switch so I don't use it too much.
 
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Old 03-13-2012, 07:29 PM
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So you tap into the big and the small orange and black wire and run them to the switch? Sorry for the noobness, I just dont want to mess anything up.
 
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Old 03-13-2012, 07:51 PM
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yep you ground that wire out. i highly recomend getting your jollys off another way because if this switch is used wrong damage will happen to your tranny VERY quickly!
 
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Old 03-13-2012, 08:14 PM
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Just the small wire on the bottom row . Watch this video

 
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