Yamaha XT1200Z(Z) 2010 Service Manual page 521

Fault code No.
Item
1 Connection of multi-function
meter 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).
2 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).
3 Wire harness continuity.
4 Abnormal meter unit opera-
tion
5 Malfunction in ECU.
Fault code No.
Item
Fail-safe system
Diagnostic code No.
Meter display
Procedure
Probable cause of mal-
Item
function and check
Er-3
ECU internal malfunction (output signal error): data from the
ECU cannot be received correctly.
Improperly connected →
Connect the coupler secure-
ly or repair/replace the wire
harness.
Improperly connected →
Connect the coupler secure-
ly or repair/replace the wire
harness.
Open or short circuit → Re-
place the wire harness.
yellow/blue–yellow/blue
Replace the meter assembly. Set the main switch to "ON".
Replace the ECU.
Er-4
ECU internal malfunction (input signal error): non-registered
data has been received from the meter.
Able to start engine
Able to drive vehicle
—
—
—
Maintenance job
8-72
FUEL INJECTION SYSTEM
Set the main switch to "ON".
Fault code number is not dis-
played → Service is finished.
Fault code number is dis-
played → Go to item 2.
Set the main switch to "ON".
Fault code number is not dis-
played → Service is finished.
Fault code number is dis-
played → Go to item 3.
Set the main switch to "ON".
Fault code number is not dis-
played → Service is finished.
Fault code number is dis-
played → Go to item 4.
Fault code number is not dis-
played → Service is finished.
Fault code number is dis-
played → Go to item 5.
Confirmation of service
completion