Yamaha FJR1300AS(X) Service Manual page 559

Fault code No. 19
Diagnostic code No.
Order Item/components and probable
cause
1 Connections
• Wire harness ECU coupler
• Relay unit coupler
2 Open or short circuit in wire harness.
3 Defective sidestand switch
4 Defective relay unit (diode)
Symptom A break or disconnection of the black/red lead of the ECU
is detected.
d:20 Sidestand switch
FUEL INJECTION SYSTEM
Check or maintenance job
• Execute the diagnostic mode.
(Code No.d:20)
• Check the coupler for any pins
that may be pulled out.
• Check the locking condition of
the coupler.
• If there is a malfunction, repair it
and connect the coupler se-
curely.
• Repair or replace if there is an
open or short circuit.
• Between relay unit coupler and
ECU coupler.
(black/red–black/red)
• Between relay unit coupler and
sidestand switch coupler.
(blue/green–blue/green)
• Replace if defective.
Refer to "CHECKING THE
SWITCHES" on page 8-233.
• Replace if defective.
Refer to "CHECKING THE RE-
LAYS" on page 8-243.
8-82
Reinstatement
method
If the transmis-
sion is in gear,
retracting the
sidestand.
If the transmis-
sion is in neu-
tral,
reconnecting
the wiring.