Table of Contents
Advertisement
Display trouble codes:
If a sender or its wiring is not operating properly, the following codes are shown on the
display:
1.
If a sender is unresponsive or there is an open circuit in the wiring so that the
sender is not connected, the display will indicate an open circuit by showing
"OPn" on the LED display.
2.
If a sender is shorted or there is a short in the wiring, the display will indicate a
short circuit by showing "Sht" on the LED display.
3.
If a sender is sending bad data, there is damaged wiring, or if there is electrical
interference, the display will indicate a data error by showing "Err" on the LED
display. Also, if the senders have not been programmed correctly, they can
interfere with one another and result in "Err" on the LED display. Check all the
senders to make sure they are programmed correctly. If they are, replace the
sender that is creating the error.
4.
If the display has been programmed for a single sender, and dual stacked
senders have been connected, the display will show "StA". In this case, change
the senders or reprogram the display as required. If only a top sender has been
connected, the display will show "nbo", indicating that no bottom sender has
been received. If the tank should only have 1 sender, correct the programming
on the sender, it should not be a top sender.
5.
If the display has been programmed for dual stacked senders for tall tanks, and
only the bottom sender is working and the top one is not, then the display will
show "ntP" indicating that no top sender is being received. If the top is working
but no bottom sender is being received, then the display will show "nbo". If
neither sender is working, then the display will show "OPn". Check the wiring
and the programming of the senders. If all is OK with that, replace the bad
sender.
6.
For the LPG tank, "Opn" indicates an open circuit in the wiring or a bad
resistance sender in the LPG tank. If there is a short in the wiring, the display
will read zero all the time.
7.
The display contains a permanent memory which is used to store the
programming for battery voltage calibration value, the LPG calibration value, and
the tank sender signal levels. These signal levels are used to help the system
adapt to the tanks, which increases sender accuracy at low tank levels. If this
memory should fail, "CAL" will be flashed on the LED display, indicating a
calibration failure. It will be necessary to replace the display if this occurs.
8.
The diagnostics can be used to check the wiring and the senders:
CHAPTER 7
TROUBLESHOOTING GUIDE
17
Advertisement
Table of Contents
