I was at one point able to wiggle the bottom pin 3rd pin on computer would make the guages to fuel and battery move then it would crank wiggles wires and heard a clicking sound sounds like under fuse box that lasted for two minutes now it want start and guages want move at all. 2002 Dodge Ram 1500 5.9

 

Are you getting "No Bus" on the odometer?

 

No I don’t have no bus on the odometer I see that a lot of people do so I looked and I don’t have no bus

 

Find out what's missing. Spark, or fuel. Do you hear the fuel pump prime when you first turn the key to "on"? Do your gauges test at all? Any dash lights on? (like, the check engine lite, for example?)

 

Yes all the lights come on when ignition is turned on but the oil gauge temperature gauge don’t work battery gauge don’t work fuel gauge don’t work but lights come on when first turn key on so just guages don’t work when I would wiggle the wires before the clicking guages would work then truck would crank

 

Think I would pull that connector, and see what things look like. Are you getting any codes?

 

No codes I pulled that pin and looked at it and tested all pins it has 32 pins only pins number two and 22 have 12 volts running through it when unplugged need to find out should it be more pins with power while unhooked you would think so out of 32 pins

 

Most of them are going to be voltage out to various sensors, wires for the return signal, and grounds. PCM only gets power on a couple wires. You really need a wiring diagram......

If all the pins look good, are clean, and making good connection...... time to start looking elsewhere. Unfortunately, the way dodge wired these trucks, if ONE 5 volt sensor fails in a particular fashion, it takes down the whole 5 volt bus, including the communications bus..... So, very little works.

 

Sent computer off to person on eBay they fixed it sent it back in two days truck crank right up haven’t drove have to get insurance back inspected and test out but believe it’s fixed soon as plugged it up gauges started working I knew that was it!!! A year later and 100$ not bad I really thought it was wiring tho talk to a mechanic and he told me computer that they sucked in these trucks that’s what made me send it glad I did.