Yamaha STAR XVS95CE 2DX1 2014 Service Manual page 377

Fault code No.
Item
3 Wire harness continuity.
4 Defective meter assembly.
5 Malfunction in ECU.
Fault code No.
Item
Fail-safe system
Diagnostic code No.
Indicated
Procedure
Probable cause of mal-
Item
function and check
1 Connection of meter assem-
bly 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 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.
Er-3
ECU (engine control unit) internal malfunction (output signal
error): data from the ECU cannot be received correctly.
Open or short circuit → Re-
place the wire harness.
Between meter coupler and
ECU coupler.
yellow/blue–yellow/blue
Replace the meter assembly. Turn the main switch to "ON".
Replace the ECU.
Er-4
ECU (engine control unit) internal malfunction (input signal er-
ror): non-registered data has been received from the meter.
Able to start engine
Able to drive vehicle
—
—
—
Maintenance job
Improperly connected →
Connect the coupler secure-
ly or replace the wire har-
ness.
Improperly connected →
Connect the coupler secure-
ly or replace the wire har-
ness.
Open or short circuit → Re-
place the wire harness.
Between meter coupler and
ECU coupler.
yellow/blue–yellow/blue
7-64
FUEL INJECTION SYSTEM
Turn 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
Turn 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.
Turn 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.
Turn 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.