Troubleshooting Method - Yamaha TRACER MT09TRA Service Manual

EAS30506

TROUBLESHOOTING METHOD

The engine operation is not normal and the
engine trouble warning light comes on.
1. Check:
• Fault code number
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a. Check the fault code number displayed on
the meter.
b. Identify the faulty system with the fault code
number.
c. Identify the probable cause of the malfunc-
tion.
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2. Check and repair the probable cause of the
malfunction.
Fault code No.
Check and repair. Refer
to "TROUBLESHOOT-
ING DETAILS" on page
8-38.
Monitor the operation of
the sensors and actua-
tors in the diagnostic
mode. Refer to "TROU-
BLESHOOTING
DETAILS" on page 8-38
and "SELF-DIAGNOS-
TIC FUNCTION AND
DIAGNOSTIC CODE
TABLE" on page 9-5.
3. Perform the reinstatement action for the fuel
injection system.
Refer to "Confirmation of service completion"
in the appropriate table in "TROUBLE-
SHOOTING DETAILS" on page 8-38.
4. Set the main switch to "OFF", then to "ON"
again, and then check that no fault code num-
ber is displayed.
TIP
If another fault code number is displayed, repeat
steps (1) to (4) until no fault code number is dis-
played.
5. Erase the malfunction history in the diagnos-
tic mode (code No.62). Refer to "SELF-DIAG-
NOSTIC FUNCTION AND DIAGNOSTIC
CODE TABLE" on page 9-5.
TIP
Setting the main switch to "OFF" will not erase
the malfunction history.
No fault code No.
Check and repair.
FUEL INJECTION SYSTEM
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 "TROUBLESHOOTING DETAILS" on
page 8-38.
1: 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
36: Injector #1
37: Injector #2
38: Injector #3
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.
8-35