Service 4WD system

[Walu hitman]

Good morning all. I'm a new member and seem to be having an issue with Service 4WD light with multiple symptoms on my 09. My Service 4wd light comes on, dings, shows 4X4 low and high, ESP lights up. All goes off after a few moments. This has been happening for some time now. This morning i was headed to work and it all happened again but this time my transmission went into neutral. (first time this happened) When I pulled over and tried to put the truck in park, it took about 20 seconds before the transmission shifted. there was a slight grinding sound when it finally shifted. I am not showing any codes on this issue. I have already replaced wheel speed sensors and 4WD actuator. Can someone give some guidance on this if possible. I have had this truck for a long time and have had zero issues on it until this. I love my truck and do not want to sell it over something that may be minimal to repair.

 

[jws123]

Jiggle your ignition see if your truck shuts off or anything happens my WIN/ignition went bad and would make all the lights your talking about come up without codes. Also to scan codes did you use a real scanner or a cheap regular scantool?

 

[Walu hitman]

Not the ignition. I have a C reader Launch 123. Kind of cheap. I ordered a new TCCM for it as I was told it may be the problem as well. I am trying to find a wiring diagram for the 4WD system but am having difficulties locating one.

 

[jawzs2]

Here's a link to the 2009 factory service manual and the connector site, it should help

ISO 2010 wiring diagram source

Bought a 2010 SLT 2wd 5.7 Crew to "fix". PO tried to connect driving lights thru the main fuse box and resulted in shorting out some stuff. Ive managed to repair and isolate some of the issues but I need to get my hands on a detailed wiring diagram. Any pointers would be appreciated. Im...

www.ramforum.com

This site will give you all the connector pinouts

https://connectorrepairkit.mopar.com/

 

[Urch]

Your comment about hoping to not have to sell truck was new to me. Most would do that as a last resort after trying to fix it first.