Problem with AMP Research power steps w/ plug n play

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Dirt Dumb

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Looking for some help other than AMP tech support. I have a 2018 Ram Longhorn Limited. Installed Amp power steps completely per instructions and tech support help. Steps cycle fine when (2) purple trigger wire grounded to frame. Amp sent a second OBD II harness thinking that might be the issue. Installed it, and no joy. Tech support insisted I should have (2) green CANbus blocks on driver's side, I only have (1). The single CANbus block had (2) open ports and I tried both. Still no joy. Anyone run into this issue?
 

mtnrider

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Sounds like they think you have a 19+ truck? Those have 2 green blocks, you only have one. Connector from OBD harness goes to the green block, 2 purple wires go to the loose leads on the OBD harness.

Anything else plugged into the OBD port?

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Dirt Dumb

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Nothing else in the OBD port. Just got off phone w/ tech support, again. Now they think I may have a 2018 with 2017 wiring harness since the manufacture date was 10/17. If so, I'll have to buy a different OBD II harness. I won't mind as long as it works. I'm too far in with labor, cost, and headaches.
 

mtnrider

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Nothing else in the OBD port. Just got off phone w/ tech support, again. Now they think I may have a 2018 with 2017 wiring harness since the manufacture date was 10/17. If so, I'll have to buy a different OBD II harness. I won't mind as long as it works. I'm too far in with labor, cost, and headaches.

That very well could be. I went with the hard wired option on my 16 so I don't have a whole lot more to offer. Good luck.


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That's why I hate the OBD2 install and prefer it hardwired .... I know tons of people who have issues with them installed using the OBD2 method ...good luck !
 
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Dirt Dumb

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The 2017 OBD harness doesn't include the (2) wire connector for the CANbus block. Supposedly uses a logic board inside the OBD plug itself. We will see, stay tuned for followup.
 
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Dirt Dumb

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Got it solved. I created this problem. Had my mechanic check my OBD port and found it didn't have power. When installing my LED headlights DRL harness, I needed a extra fuse. Guess which one I pulled by mistake thinking IT was a spare. Yep, The 10 amp Diagnostic Port!! Bad eye sight!! Anyway, the power steps work fine now.
 

KootenayCruiser

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When you guys are talking hard wiring where are you tapping into for the two signal wires ?
 

Mopar1987

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Glad you got it figured out! i just put the XL pwersteps on my 18 Sport and the install went smooth as butter. Up until I figured out AMP wired my driver side motor backwards. Door closed, step came out. That was fun.
 
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