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MBS-1P Installation
Current Faults
To access the flash code identification for a current fault, turn all power OFF to
the ABS and perform the following steps.
NOTE: This circuit can be powered with a suitable light tester or by
pulling down on the trailer brake lever in the cab.
NOTE: This circuit can be powered with a suitable light tester or by
turning the ignition ON and OFF on newer model tractors.
NOTE: After the first flash sequence, the lamp will turn OFF briefly then
repeat the flash sequence. This will continue for one minute allowing
time to reach the trailer ABS light and record the number of flashes.
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1. Power the stop lamp circuit (red) and allow power to remain ON this
circuit until the flash code has been identified (see step 3 below). The
malfunction lamp will light with the stop lamps and remain ON (if the lamp
goes out, there are no current faults).
2. Power the auxiliary circuit (blue) for one second, then power down for one
second, then power back up and allow the power to remain ON until the
flash code has been identified (power ON two times).
3. The malfunction lamp will begin flashing a code. The code is identified
by the number of times the lamp illuminates.
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