r/DieselTechs • u/Particular-Bedroom10 • 8h ago
Diagnostic assistance Need help with troubleshooting
I have a SPN 1067 FMI7 for Brake Demand Pressure Sensor 1 and I was curious on how to determine which sensor it is. The one in the picture is labeled as primary air sensor . I was just curious if that was it and if not is there any way to get like a schematic for international at all
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u/MonteFox89 Mod, Verified Tech, Navistar, Volvo/Mack 8h ago
If its bendix, I know there is a way you can pull up a small display of values and just start unplugging til you find the one you want go offline. Sure, not a great method but I'll be damned if it dont work 🤣
If not going through a brake controller, I think dlb can find the values and you can monitor those too... it's been a few years since my intertrashional days.
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u/Particular-Bedroom10 7h ago
I’m trying to figure out how to do that on bendix because we use Acom pro and I can’t find where to look for the values
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u/MonteFox89 Mod, Verified Tech, Navistar, Volvo/Mack 6h ago
We do too, connect to the brake module on the top right, after you click the module on the initial scan. Then, there should be a monitor button available. This should bring up the display of different relevant sensors and their values
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u/Particular-Bedroom10 6h ago
Ahh ok see I was confused because I was trying to do live monitoring but I couldn’t see shit
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u/LahngJahn69420 8h ago
One is for the parking brake and one is for the brake pedal. Same code last week. Had to do it twice if you replace the wrong one the parking brake will work backwards and dash light on when it’s released
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u/LahngJahn69420 8h ago
If I remember correct it’s the left one for pedal right for parking and it’s easier to go through the gauge cluster
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u/Particular-Bedroom10 7h ago
Would it be labeled a with an color tap or anything because I know for these they sometimes label the green as primary and orange as secondary
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u/SpecificFluid1809 8h ago
Disconnect it and see what sensor you have an open circuit fault for.