I just bought a 2000 Ram 1500 5.9. After going through everything I noticed 2 wires were cut. I am not sure if it was intentional or not and everything on the truck seems to be working properly, so that is my hesitation to reconnect them. I thought maybe someone might be able to tell me what these wires are. There are both at the firewall and going into the PCM. One wire is white with a green stripe, the other is yellow with a black stripe. Any help would be greatly appreciated as I have search the forum and the internet for about 2 hours and I am out of patience! Thanks again!

 

In PCM connector 1 (Black) there is a Yellow/Black wire for the Idle Air Control #2 driver Pin 10 . In Connector 3 (Also Black) Pin 10 is showing White/Dark Green for the Leak Detection Pump Solenoid Control. Connector 1-3 is labeled from right to left. Meaning connector 1 is the one on the right and 3 is on the left. This is what is showing in service information from Chrysler.

 

Yellow with black trace in C1 goes to IAC...... does your truck control the idle properly? CEL on? IAC codes??

There is a white with dark green trace in C3, that goes to the leak detection pump?

someone is faster on the lookup than me.

 

I do have an IAC code and figured one of those wires was probably an IAC issue as the code kept coming back even when I unplugged the thing. Thanks a lot for your help.