Help! PCM Engine Harness Connector Broken

DuffMcWhalen · Jul 3, 2017

I pulled off the 2 engine harness plugs going to the PCM to help make room with a spark plug change. When putting back on the drivers side connector, the 2 pins holding the red tab sheared off. Now I can't get it back on completely and it throws tons of codes when I start the truck. Anyone have any suggestions?

DuffMcWhalen · Jul 3, 2017

Nevermind. I ended up pulling the green and blue tabs out of the bottom of the engine harness connector (the ones the red tab operates to lock the connector into place) and now it's seated properly with no engine codes.

Ken226 · Jul 3, 2017

Not sure if that connector is replaceable, but if so you might consider replacing it anyway. Just to insure it can't vibrate itself off while driving.

Joji91 · Jul 3, 2017

Both of mine are bare now. Too much swapping pcm back and forth. I too wonder if they are replaceable.

Sent from my SM-G935V using Tapatalk

DuffMcWhalen · Jul 3, 2017

They are. Part # 1924780-1 Assy # 1924779 1. I ordered one from Mouser here: http://www.mouser.com/ProductDetail/TE-Connectivity/1924779-1/?qs=38Qq1exbXqd5qGgdJMBQyg%3D%3D

Markde1974 · May 25, 2018

How can I get one off that won't unclip? The handle moves but it isn't disengaging anything.

LB01 · Jul 1, 2018

DuffMcWhalen said:
Nevermind. I ended up pulling the green and blue tabs out of the bottom of the engine harness connector (the ones the red tab operates to lock the connector into place) and now it's seated properly with no engine codes.

Thank you! I did exact same thing, same side busted off, thought I had really screwed truck up when all the codes showed up. Used a small drift and leather mallet to reseat connectors on side of harness. Thanks again.

TX1500SLVREDITION · Feb 25, 2019

How were you able to remove the PCM connectors, my handles broke off, I slide both locking tabs-blue and Green but the connectors
won’t come off.

B Jack · Mar 11, 2019

Mine just did the same thing yesterday. Thanks for posting the link for a replacement Duff.

For me to get it off and on i had to use needle nose pliers while pushing or pulling. So while using the pliers grip the green or blue plastic piece and push down or up and push in or pull out the box at the same time. A real pain.

Sean Nice · Dec 30, 2020

Help! PCM Engine Harness Connector Broken

were you able to figure out how to get the harness off? Mine just did the same thing yesterday and I need to do my PCM swap before I get charged (installing a tuner). Thanks.

I think this is a poor design with these small plastics tabs holding on the handle.

stpatty77 · Aug 11, 2021

DuffMcWhalen said:
They are. Part # 1924780-1 Assy # 1924779 1. I ordered one from Mouser here: http://www.mouser.com/ProductDetail/TE-Connectivity/1924779-1/?qs=38Qq1exbXqd5qGgdJMBQyg==

this is awesome thank you

Black1500Ram · Jan 12, 2023

DuffMcWhalen said:
They are. Part # 1924780-1 Assy # 1924779 1. I ordered one from Mouser here: http://www.mouser.com/ProductDetail/TE-Connectivity/1924779-1/?qs=38Qq1exbXqd5qGgdJMBQyg==

You are the man.

This happened to me too. All the red lever does is slide the internal locking plastic up or down.

Once the connector is fully seated, I used a thick but relatively small flat head to gently tap the locking piece up/down (I don’t remember which way was locked) until it was in the same position as it would be when you lock the red lever.

Randy Grant · Jan 12, 2023

Different vehicles, but the same connector

Help! PCM Engine Harness Connector Broken

DuffMcWhalen

Junior Member

DuffMcWhalen

Junior Member

Ken226

Senior Member

Joji91

Senior Member

DuffMcWhalen

Junior Member

Markde1974

Junior Member

LB01

Junior Member

TX1500SLVREDITION

Junior Member

B Jack

Junior Member

Sean Nice

Junior Member

stpatty77

Junior Member

Black1500Ram

Senior Member

Randy Grant

Senior Member

Fun with PCM Connectors

- YouTube

How-to / Replace PCM Connector on any Modern Mopar/Dodge/Ram/Jeep vehicles

Similar threads

Latest posts

Members online

Forum statistics

Share this page