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MBS-1P Installation
Stored Faults
To access the flash code identification for a stored fault, turn all power OFF to
the ABS and perform the following steps.
NOTE: This procedure should only be required during annual routine
maintenance or when there is an intermittent problem that does not
show up at stationary power up. For example, if a wheel locks up for an
extended period of time because of a foundation brake malfunction.
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.
To identify the fault code, refer to the Flash Code Identification Table on page 35.
Before any maintenance is performed, all power must be disconnected from
the system.
If more than one stored fault exists, it will be identified after you clear
each fault.
30
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 then turn OFF.
2. Power the auxiliary circuit (blue) for one second, power down for one
second, power back up for one second, 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 three 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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