Anybody know where I can find an electrical diagram of the two connectors on the back of the instrument cluster and the signals that drive the gauges?

 

would this be any help?
https://dodgeforum.com/m_179505/tm.htm

 

Thanks for your reply but I'm looking for an electrical diagram of what connector pin goes to what gauge. I'm too lazy to try to follow the traces on the pc board myself. I also need information of the type of electrical signal the drives the different gauges. If the signal is analog or digital and what the amplitude and the frequency would be.

 

what you trying to do

 

 

I'm thinking of making a test box possibly battery operated that could be used to test clusters at the junkyard.