Yamaha XT1200Z 2010 Service Manual page 501

Manuals by Motomatrix / www.motomatrix.co.uk / The Solution For Lost Motorcycle Coded Keys
Fault code No.
Item
Probable cause of mal-
Item
function and check
1 Identify the malfunctioning
injector
2 Connection of injector #1
and/or injector #2 coupler.
Check the locking condition
of the coupler.
Disconnect the coupler and
check the pins (bent or bro-
ken terminals and locking
condition of the pins).
3 Defective injector #1 and/or
injector #2.
4 Connection of wire harness
ECU coupler.
Check the locking condition
of the coupler.
Disconnect the coupler and
check the pins (bent or bro-
ken terminals and locking
condition of the pins).
5 Wire harness continuity.
6 Malfunction in ECU.
email: info@motomatrix.co.uk
39
Injector: open or short circuit detected.
Maintenance job
Execute the diagnostic mode
(Code No. d:36, 37).
Identify the injector that does
not produce an operating
sound.
Perform the following proce-
dures for the defective injec-
tor.
Refer to "CHECKING THE
FUEL INJECTORS" on page
8-155.
Improperly connected →
Connect the coupler secure-
ly or repair/replace the wire
harness.
Measure the injector resis-
tance. If the resistance is not
12 Ω, replace the injector.
Improperly connected →
Connect the coupler secure-
ly or repair/replace the wire
harness.
Open or short circuit → Re-
place the wire harness.
Between injector coupler and
ECU coupler.
Injector #1
red/black–red/black
red/blue–red/blue
Injector #2
green/black–green/black
red/blue–red/blue
Replace the ECU.
8-52
FUEL INJECTION SYSTEM
Confirmation of service
completion
—
Start the engine and let it idle
for approximately 5 seconds.
Fault code number is not dis-
played → Service is finished.
Fault code number is dis-
played → Go to item 3.
Start the engine and let it idle
for approximately 5 seconds.
Fault code number is not dis-
played → Service is finished.
Fault code number is dis-
played → Go to item 4.
Start the engine and let it idle
for approximately 5 seconds.
Fault code number is not dis-
played → Service is finished.
Fault code number is dis-
played → Go to item 5.
Start the engine and let it idle
for approximately 5 seconds.
Fault code number is not dis-
played → Service is finished.
Fault code number is dis-
played → Go to item 6.