Mercury 25 EFI Service Manual page 177

Section 3B - Troubleshooting and Diagnostics
Table of Contents
Troubleshooting Without a Computer Diagnostic System
(CDS)............................................................................. 3B-3
Troubleshooting with the Computer Diagnostic System
(CDS)............................................................................. 3B-3
Accessing ECM Information with the CDS.........................3B-4
Fault Information.........................................................3B-5
90-8M0105568 eng MARCH 2016
Fuel System
Guardian Protection System.............................................. 3B-5
Guardian Warning System Control Matrix......................... 3B-5
Anti-Siphon Valves.............................................................3B-6
Testing Fuel Lift Pump Vacuum.........................................3B-6
Fuel Pressure Test.............................................................3B-7
© 2016 Mercury Marine
Troubleshooting and Diagnostics
Page 3B-1
3
B