If the fuel pump relay is normal, check the wiring to the fuel pump relay (see Fuel Pump Relay Circuit).
Special Tool - Hand Tester: 57001-1394
If the wiring is good, check the ECU for its ground and power supply (see ECU Power Supply Inspection in the Fuel System (DFI) chapter).
If the ground and power supply are good, replace the ECU (see ECU Removal/Installation in the Fuel System (DFI) chapter).
Fuel Pump Relay Circuit
1. ECU
2. Engine Stop Switch
3. Ignition Switch
4. Joint Connector F
5. Fuse Box 1
6. Ignition Fuse 15 A
7. Relay Box
8. Fuel Pump Relay
9. Fuel Pump
10. Frame Ground 1
11. Frame Ground 3
12. Starter Relay
13. ECU Fuse 15 A
14. Main Fuse 30 A
15. Battery
16. Engine Ground
Stick Coil #1: Service Code 51
Stick Coil #2: Service Code 52
Stick Coil #3: Service Code 53
Stick Coil #4: Service Code 54
Fuel Pump Relay Removal/InstallationWheel Inspection
Raise the front/rear wheel off the ground.
Special Tools - Jack: 57001-1238
Jack Attachment: 57001-1608
Spin the wheel lightly, and check for roughness or binding.
If roughness or binding is found, replace the hub bearings
(see Hub Bearing Removal/Installation).
Inspect the wh ...
Service Code Reading
The service code(s) is displayed on the LCD by the number
of two digits.
NOTE
The service code of the KIBS and ABS adds “b” at the
left side of the code.
The service code of the ESD adds “E” at the left side of
the code.
When there are a number of problems, all the serv ...
Inquiries to Rider
DFI Diagnosis Flow Chart
Each rider reacts to problems in different ways, so it is important to
confirm what kind of symptoms
the rider has encountered.
Try to find out exactly what problem occurred under exactly what
conditions by asking the rider;
knowing this information may h ...
