Mercury V6 175 Diagnostic Manual page 47

2.
It provides a Quick Fault Resolution for the technician. This information is not directly available to the operator. We have
provided the information here to allow you, the dealer, to step a boat owner through fault resolution, should they encounter
a fault on their MFD. In most cases, if the resolution does not work, the escalation is for the operator to bring the boat into
your service center.
3. It correlates the MFD fault to the Mercury universal fault codes (UFC) and CDS G3 Freeze Frame names for propulsion
control module (PCM) faults. In some cases, there is a one‑to‑one correspondence between the MFD fault and a PCM
fault, although this is not always true. Knowing this correlation will help you to get started in the troubleshooting process,
should the quick fault resolution prove unsuccessful. Refer to Section 4A ‑ Fault Codes for fault description and
resolution.
NOTE: Within the Quick Fault Resolution column, the table uses the following shorthand:
• Clean power issue = There is a possible issue with the clean power supply. Check all fuses and battery connections.
• No QFR = There is no quick fault resolution available to the operator. The fault must be diagnosed by a qualified
technician.
90-8M0146617 eng JULY 2018 © 2018 Mercury Marine
General Troubleshooting
Page 3A-3