When you have resoldered every pad, let the board cool, and treat the connector socket with the Deoxit. Be careful not to damage any of the components on the board or the copper traces that connect them. when you ge a good solder joint move to the next pad inline, dont jump pads, the warming of the pard itself will speed things up. It will take a bit of time to get it to flow due to the type of board material the unit is made out of so dont get impatient. Now using as little solder as you can, carefully flow fresh solder onto each pad and the connector that is on the pad. turn it over and carefully clean any of the jelly potting compound from the solder pads of the connector strip that plugged into the other part of the unit.
The small cover will come right off, the larger one will have to be gently pried off as it is actually the 5 volt regulator board of the PCM. When you have your supplies together,remove the two screws in the cover and gently pry the tabs holding the covers on the PCM up. (No I dont own stock in the company, but wish I did!!!) It is fantastic for electrical/electronic connections in severe environments such as in an engine compartment. Deoxit is liquid magic! I have used it for decades in the electronics arena to stop erratic issues that were otherwise like chasing ghosts. it requires a 30 watt (average) soldering pencil, some thin 60/40 ROSIN CORE solder (NEVER USE ACID CORE! it will destroy the unit!) and some Deoxit from Radio Shack.
#Pin out pcm jeep cherokee 4.ol how to#
I'm tempted to try this.īefore you submit to replacing the PCM (Powertrain Control Module) as the computer is properly called by Jeep/Chrysler, here is a quick tutorial on how to correct MOST problems that present as a defective unit. Companies who offer a reconditioned pre programmed unit have a horrible BB rating. Local dealer wants a fortune for a new PCM and they won't program one I bring to them. I have a 2006 rubicon unlimited and I have to clear the PCM memory every few months to get it to shift smooth. Has anyone done this? Found this on another jeep forum.
0 kommentar(er)
