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An update on what I have accomplished After checking Turn Signal Switches and finding power to work them/ After finding the horn and testing that/ I had to go on to some other business for a couple of weeks and upon my return I found my truck would not start nor fire up any lights/ Proceeded to...

I do have a square connector at the transmission but it is internal in the module at the bottom of the transmission. Up above and to the right of the rear of the transmission is a round plug that is the body builders quick connect for the transmission. That round one is what I needed the pin...

I do have a square connector at the transmission but it is internal in the module at the bottom of the transmission. Up above and to the right of the rear of the transmission is a round plug that is the body builders quick connect for the transmission. That round one is what I needed the pin...

The code says that the C3 Pressure Switch is open. The main code is 32 and according to the trouble shooting guide any code that begins with 32 goes right to the C3 Pressure Switch. I am going to get back to it and I will finish this thread. So far as Pin Out the pins are h and j and both ends...

I will post what I find and I too will be a few weeks in the processs. Lugnuts

Thank you NDT

Gentlemen: I think I really have searched thoroughly for the map for the pin locations on the wiring connections for the transmission on the M1078/ 1997/ Now specifically the one I need is the round quick connect just to the right side rear of the transmission. Allison provides the one for the...

IN

Thank you! What was the TM# and where might I obtain a copy of the TM? Lugnuts

I did check for continuity and breaking continuity and the switch appears fine. I can even see that I have power in on the switch on the flasher side because I get a blinking on that leg. No sound from a flasher so could be electronic. Stimulated the wires designated to the flashers, marker...

When I find it I'll definitely post it. Thanks for the help/ Lugnuts

If they are not on the board, where are they? I have dismantled quite a bit and frustrations are looming. I know in the center of the dash were electrical connections as per 1078 but did they slip any components in there? Thank you for your time

I am assuming that the 1083 has a relay for the horn because the size of the wire I don't think would support 12vdc or 24vdc very far on distance. There is no relay on the board for horn. I was using the 1078 schematic for reference and mode of thinking and since that is not pertinent to the...

To clarify my question. If there is only one board where are the components on the truck. Those components at this time are the horn relay and the turn signal flasher?

The remedy then is clean and resolder? The other question, what is the location of the other boards? Thank you

Where then sir, are the other boards located? And the solder issue? Was that at the connections on the printed Circuit Board or just wherever they us solder? Thank you for your time and information.

I did go back to the post and it didn't have the information for what I needed. Thank you for the reply

Post #3 had a picture of the board. The picture is upside down as presented but yes that is the board. Thank you

Yes, that is the board. Sure hope you can help me. Do you have the Tech Manual, especially electrical schematics, that go with that truck? Thank you

Yes, not listed there. Thanks for the reply