Yamaha FJR13AG Service Manual page 539

The engine operation is not normal, but the engine trouble warning light does not come on.
1. Check the operation of the following sensors and actuators in the diagnostic mode. Refer to "DIAG-
NOSTIC CODE: SENSOR OPERATION TABLE" on page 9-15 and "DIAGNOSTIC CODE: ACTU-
ATOR OPERATION TABLE" on page 9-18.
01: Throttle position sensor signal 1 (throttle angle)
13: Throttle position sensor signal 2 (throttle angle)
14: Accelerator position sensor signal 1 (throttle angle)
15: Accelerator position sensor signal 2 (throttle angle)
30: Cylinder-#1 ignition coil
31: Cylinder-#2 ignition coil
32: Cylinder-#3 ignition coil
33: Cylinder-#4 ignition coil
36: Injector #1
37: Injector #2
38: Injector #3
39: Injector #4
48: Air induction system solenoid
If a malfunction is detected in the sensors or actuators, repair or replace all faulty parts.
If no malfunction is detected in the sensors and actuators, check and repair the inner parts of the
engine.
EAS30951
YAMAHA DIAGNOSTIC TOOL
This model uses the Yamaha diagnostic tool to identify malfunctions.
For information about using the Yamaha diagnostic tool, refer to the operation manual that is included
with the tool.
Yamaha diagnostic tool USB
90890-03250
Yamaha diagnostic tool (A/I)
90890-03252
TIP
A generic scan tool can also be used to identify malfunctions.
OBD/ GST Leadwire kit
90890-03249
Connecting the Yamaha diagnostic tool
Remove the protective cap, and then connect the Yamaha diagnostic tool to the coupler "1".
EAS30987
TROUBLESHOOTING DETAILS (ECU) (FAULT CODE)
This section describes the measures per fault code number displayed on the Yamaha diagnostic tool.
Check and service the items or components that are the probable cause of the malfunction following
the order given.
1
8-62
FUEL INJECTION SYSTEM