2009-2012 Honda MUV700 Big Red Service Manual, Page 180Get this manual
FUEL SYSTEM (PGM-FI) MAIN RELA CIRCUIT INSPECTION 1Power Input Line Inspection
Remove the main relay (page 6-38)Turn the ignition switch to ON (I) Measure the voltage between the Whitered wire terminals (+) of the main relay (relay box) connector and ground (-)Is there battery voltage? YES NOGO TO STEP 2_Open circuit in the WhITe red wire between the relay box and fuse box Blown IGN fuse (10Open circuit in the Redyellow or Red wire between the fuse box and batteryMAIN RELAY CONNECTOR (Terminal side of the relay box)
Whitered (+)
2Relay Coil Ground Line Inspection Check for continuity between the Violet wire term inal of the main relay (relay box) connector and groundIs there continuity? YES NOThe ma in relay circuits are normal- Open circuit in the Violet wire between the relay box and PCM Faulty powerground line of the PCM (page 6-54) Faulty PCM MAIN RELAY CONNECTOR (Terminal side of the relay box)
FUEL PUMP RELAY CIRCUIT INSPECTION
1Power Input Line Inspection Remove the fuel pump relay (page 6-38)Turn the ignition switch to ON (I)Measure the voltage between the Blackyellow wire terminals (+) of the fuel pump relay (relay box) connector and ground (-) Is there battery voltage? YES NOGO TO STEP 2_Open circuit in the Blackyellow wire between the ma in relay and fuel pump relay connectors Fau Ity main relay or its circuits