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School Bus Tech Tip of the Month:

SPECIALTY MANUFACTURING STOP SIGN NOT WORKING

 

 

  • Remove the cover of the unit.

  • Disconnect the large round connector.

  • Verify that the unit is receiving constant 12V (red wire), ground is good (white wire), and trigger signal (blue wire) goes high (constant 12V) when activated and low (0V) when deactivated.

  • Faulty power or a trigger signal will prevent the unit from operating correctly. If any line is faulty, assess bus side problem.




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