Short Text Horn Action Long Text Quick Fault Resolution UFC PCM Fault Name
Trim Caution Service engine soon.
The trim down relay is not working
properly.
Swap relays, check
wiring
3182 16 TRMD_OutputFault
The trim up relay is not working
properly.
3181 16 TRMU_OutputFault
Voltage Caution Service engine soon.
Sensor power supply voltage is high.
Check wiring for shorts
or opens
603 4 XDRPc_RangeHigh
Sensor power supply voltage is low. 603 5 XDRPc_RangeLow
Warning Horn None Service engine soon.
Warning horn in boat is not working
properly.
Check wiring
connections
3152 16 HORN_OutputFault
Water in Fuel Caution
Service engine soon ‑ Refer to
Owner's Manual for service
procedure.
There is water in the fuel system.
Continued operation may cause
engine damage.
Drain filter 1108 25 WaterInFuel_RangeLow
General Troubleshooting
90-8M0146617 eng JULY 2018 © 2018 Mercury Marine Page 3A-9
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