Yamaha XJR1300 2007 Service Manual page 339

Fault code No. 48
Diagnostic code No.
Order Item/components and probable cause
When error code Nos. 47 and 48 are displayed simultaneously, first check
and repair No.47.
1 Connections.
Sub-throttle position sensor coupler
G
Wire harness ECU coupler
G
Sub-wire harness coupler
G
2 Open or short circuit in wire harness
and/or sub-wire harness.
3 Defective sub-throttle servo motor
Fault code No. 50
Diagnostic code No.
Order Item/components and probable cause
1 Malfunction in ECU.
Symptom Sub-throttle servo motor is stuck.
56 Sub-throttle servo motor
Faulty ECU memory. (When this malfunction is detected in the
Symptom
ECU, the fault code number might not appear on the meter.)
— —
FUEL INJECTION SYSTEM
Check or maintenance job
Check the coupler for any pins
G
that may have pulled out.
Check the locking condition of
G
the coupler.
If there is a malfunction, repair
G
it and connect it securely.
Repair or replace if there is an
G
open or short circuit.
Between sub-throttle position
G
sensor coupler and ECU cou-
pler.
(Yellow/Red–Yellow/Red)
(Yellow/White–Yellow/White)
Execute the diagnostic mode.
G
(Code No.56)
When the abnormality is
G
detected at diagnostic mode
(Code No.56), inspect. Refer to
"CHECKING THE
SUB-THROTTLE SERVO
MOTOR" on page 6-10.
Check or maintenance job
Replace the ECU.
7-62
Reinstatement
method
Set the main
switch to "ON".
Reinstatement
method
Set the main
switch to "ON".