Haven't been through any water. This is in California, a very dry place this time of year. I did just now try disconnecting the negative cable and slapping the dash and still no guages.
I did print out your diagram, but can't find the bulkhead that b33 mounts to. There is no acid under the battery or moisture on the side. The speed control module is under the battery mount, but I can't find the connector anywhere in front of that.
Sorry for the delay, I had an appointment, that just ended. Anyway, I checked the connectors and there is no corrosion. My van has a v-6 and I can't find the knock sensor, of course I also wasn't able to lift the van to get under it so was only felling my way past the oil filter and dipstick, but after those is either a motor mount, the starter or both. With a V-6, I can't see anything from the top. I do have a volt/ohm meter, but where is the connector located in the picture you furnished?
I know the date link connector is under the dash on all late model vehicles, but it isn't on this one. the only thing under the dash is the fuse box, unless it's hidden under the lower dash panel which I've never seen before.
It should be there if this is a 96 and you are in the USA.
Try cycling the key ON OFF ON OFF ON WITH IN 5 SECONDS AND SEE IF THE CHECK ENGINE LIGHT WILL FLASH A CODE IN LONG AND SHORT FLASHES.
My sincerest apologies for leading you astray. This is a 1994 van conversion that was first sold in 1996. That explains the no data connector and why your drawings were slightly off. I did remove the dash and cluster, cleaned the contacts, re- assembled everything and still no gages. I didn't disassemble the cluster so I have no idea if the circuit board was cracked, but with no impact and this happening suddenly I doubt if that's the case, although I also realize that in this world anything can happen. If you want to close this request so you can get paid, I more than understand. If you want to continue, I would be grateful, but due to care giving duties, I won't be back on for about 4 hours. Thanks again for getting me this far.
I am assuming you mean the circuit board in the cluster? With this being a 94, is that even going to be available? Since I've made it this far, I would assume I can change the board, but is there any other possibilities that my local dealer could check better than me since he has all the testing equipment or is this pretty much the only answer after the readings I've given you? Electronic components do fail, but isn't it kind of odd a circuit board made it 15 years and just failed suddenly? And I am in no way questioning your diagnostics since you are the one with the expereince. I'm just trying to rule out any errors on my part since I've already reasembled the dash. And why would I do that? I have to keep this in running order since it is my wife's only transportation to and from doctors, with or without gages. Thanks again for all your time and efforts and putting up with me after my initially giving you the wrong year.