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Did I miss something? Seems its posts like yours that seem to start s**t where none exist....frankly, its only on this site does the mud slinging always seems to happen...dont have this issue on the G503.

And you can't own these trucks without going through some financial pain...trust me. it ain't like you can go down to napa and buy alot of the stuff one might need. but I had your issue and it was a PCB.

Replace the PCB.....you can't have burnt anything in that box...you can find them for much cheaper then 400.00 i found mine, a used takeout for 75.00 any 939 series will work.

Problem Solved....Put in a Takeout PCB from another 9XX truck and fired right up....Pretty much what I suspected all along. I guess I should have gone with my gut instinct all along, that and the fact that all my TS revealed no issues anywhere else.

Does wire 74 go to the starter solenoid post labeled switch?

Well, at this point I have gone through as much of the TSU section on no start that I care to. truck starts and runs fine as long as it is jumped from the starter. , just nada at the ignition switch....it's all wired right and I get proper voltages at the PCB connector and switches as well as...

Perhaps it would have been more useful to PM me if in fact you have the answers to my Posts? THat is unless you get more joy from your replies.

Not sure what a 939 program is....where can I download?

No T&M's yet.....what I need is the wire number for the battery switch and start switch...the dash has been effed with.

Disconnected all the batteries, jumped from my hmmwv, and jumped the starter....she fired right up! so bad batteries and still something wired wrong....can anyone tell me what leads go to the battery and start switch? no turn signals...and lights either, there is no cannon plug on the flasher...

Been raining...and stuck in the shop on more important stuff. I know I need to replace the batteries, they are dated 06, best I have ever done on a set of 6TL's was about 6 yrs.....actually better then my Optimas. i will start with just 2 to get her started....when I get around to it.

No go, 3 days of charging and can't get them above 11.5v, does anyone have a wire harness schematic? i know some stuff under the dash is wired wrong....as the dash had been off in the past. is it possible with nothing, not even a click when key turned its the PCB?

923 won't start, I get nothing when I turn key....no click nothing. Batteries are low low low...but I should get a click...jumped at starter and it turn slow...it almost appears to be bad neutral start switch, it's as if its in gear. I bypassed NSS..still same. Ign switch looks right, battery...