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any luck?Let me try my J1939 based CTIS interface tool with the 120 ohm CAN bus resistor. Give me a bit to dig it out.
[mention]Superman [/mention] can reprogram them I think.any luck?
So did you get it done?Let me try my J1939 based CTIS interface tool with the 120 ohm CAN bus resistor. Give me a bit to dig it out.
Some green modules after 1998 can communicate with the tool on a J1587 link. All black modules should be able to use a CAN link.So did you get it done?
Huh not sure why that would make a difference but I'll certainly try it and post the results! I have updated the wheel valves and had updated the pressure xducer but then swapped it back to OEM during some other troubleshooting (turned out it was a wheel seal going out). So back it goes! I've replaced 4 of 6 hub seal sets so far..... If they last another 10 years I'm OK with that.IIRC the last 10psi was achieved by the updated pressure transducer, different resistance???, I’m guessing we discussed this earlier in this thread. I should still have a couple NOS around here, if needed I could make you a decent deal on one. I think I still need to get one 74m one as well.
Nope. Swapped it over same thing. Firmware is holding the top at 80psi. You have to have the latest ECU for the 90psi. Hopefully Dana will get back to me I sent them screen shots of the software and explained I need to flash the firmware.IIRC the last 10psi was achieved by the updated pressure transducer, different resistance???, I’m guessing we discussed this earlier in this thread. I should still have a couple NOS around here, if needed I could make you a decent deal on one. I think I still need to get one 74m one as well.
Maybe @Stellaevil could be some help.Nope. Swapped it over same thing. Firmware is holding the top at 80psi. You have to have the latest ECU for the 90psi. Hopefully Dana will get back to me I sent them screen shots of the software and explained I need to flash the firmware...
Any chance you can post a picture of that entire data plate? Wondering if it’s for the wrong truck.….My data plate says off highway should be 60psi front and 30psi rear...
Correct, these are single circuit systems. Unless inop or disabled all the tire pressures will be maintained at the same pressure..
Am I missing something?
CTIS sets all tires in the Central Tire Inflation System to the same pressure.
Granted, front at one pressure and the rears at another is perfectly normal, but not with CTIS.
.Well this one went through RSMS in June of 2012 so it was VERY end of life. I'm finding a lot of stuff that indicates they just "checked the boxes" when they went over it. Fact that it's a wrecker shouldn't make a difference really. The 8.3 motor does indeed take exactly 20 quarts with a filter (like the data plate says) but the TM says 23.7 I think. Some differences make me think it's either an old truck worked back up to an A2; or some rollouts made it and some didn't before they pulled the plug and replaced the models. We'll probably never know.
Meanwhile I haven't heard from the Dana people. I need to get into that firmware. In to the back programming. I'll pester them again in a few days.
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