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What is this Box???
What is this box In Steer compartment with all the wires for? It says low detection on it, For air pressure? Does it ever fail and if so what does it affect? on cover it says Programmable speed switch-signal-high detection-low detection for Tachometer??
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4 Replies
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Found this wiring schematic on page 16 on Prevost website Speed switch
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Correct part of the a/c control
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Hey Jeff! Thanks’ for reply your the only one. What is it’s function? What does it do? It looks like it gets power from 24v ignition sw to DDEC decell sw CB breaker 92 same breaker powers level low,ties to world trans speed signal, tied to speedo.
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Did this question get answered?
Looking at the wiring diagram, I see that it connects for the tag unload switch and the speedo to enforce the 20mph rule for the tag.
I am hopeful that this will help to resolve our speedo issue.
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