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MBS-1P Installation
Figure 19, Accessing Stored Fault Codes
Accessing Stored Fault Codes
Turn all power OFF
Power the stop lamp circuit (red).
The malfunction lamp will light
and then turn OFF
NOTE: Power with a light
tester or by pulling down
on the trailer brake lever.
Power the auxiliary circuit (blue):
• One second ON
• One second OFF
• One second ON
• One second OFF
• ON until flash code is identified
The malfunction lamp will begin
flashing a code. The code is
identified by the number of times the
lamp flashes. The lamp will repeat
the flash sequence for one minute.
NOTE: Power with a light tester or
by turning the ignition ON and OFF
(newer models).
NOTE: If lamp does not flash, no
faults are present.
322UX019