Yamaha SR400 2014 Service Manual page 294

Fault code No.
Item
2 Open or short circuit in wire harness.
3 Defective lean angle sensor.
Reinstatement method
Fault code No.
Item
Fail-safe system
Diagnostic code No.
FI diagnostic tool display
Procedure
Probable cause of malfunction
1 Connections
• Speed sensor coupler
• Wire harness ECU coupler
2 Open or short circuit in wire harness.
3 Defective speed sensor.
Reinstatement method
41
Lean angle sensor: open or short circuit detected.
• Repair or replace if there is an open or short
• Between lean angle sensor coupler and ECU
• Execute diagnostic code No. D08.
• Replace if defective.
Turn the main switch to "ON".
42
Speed sensor: no normal signals are received from the speed
sensor.
Able to start engine
Able to drive vehicle
D07
Vehicle speed pulse
0–999
Check that the number increases when the front wheel is rotated.
The number is cumulative and does not reset each time the wheel
is stopped.
• Check the coupler for any pins that may be
• Check the locking condition of the coupler.
• If there is a malfunction, repair it and connect
• Repair or replace if there is an open or short
• Between speed sensor coupler and ECU
• Execute diagnostic code No. D07.
• Replace if defective.
Start the engine and run the vehicle at 20 to 30 km/h.
7-37
FUEL INJECTION SYSTEM
circuit.
coupler.
L–L (blue–blue)
Y/G–Y/G (yellow/green–yellow/green)
B/L–B/L (black/blue–black/blue)
Refer to "CHECKING THE LEAN ANGLE
SENSOR" on page 7-67.
Check or maintenance job
pulled out.
the coupler securely.
circuit.
coupler.
W–W (white–white)
Refer to "CHECKING THE SPEED SEN-
SOR" on page 7-70.