Yamaha 2016 Grizzly yfm700gplg Service Manual page 409

Fault code No. 46
TIP
If fault code numbers "37" and "46" are both indicated, take the actions specified for fault code number
"46" first.
Fault code No.
Item
Fail-safe system
Diagnostic code No.
Indicated
Procedure
Probable cause of malfunc-
Item
tion and check
1 Malfunction in charging system. Check the charging system.
Fault code No. 50
Fault code No.
Item
Fail-safe system
Diagnostic code No.
Indicated
Procedure
Probable cause of malfunc-
Item
tion and check
1 Malfunction in ECU.
Fault code No. Er-1
Fault code No.
Item
Fail-safe system
Diagnostic code No.
46
Charging voltage is abnormal.
Able to start engine
Able to drive vehicle
—
—
—
Maintenance job
Refer to "CHARGING SYS-
TEM" on page 9-11.
Defective rectifier/regulator or
AC magneto → Replace.
Defective connection in the
charging system circuit → Prop-
erly connect or replace the wire
harness.
50
Faulty ECU (Engine Control Unit) memory. (When this malfunction is
detected in the ECU, the fault code number might not appear.)
Unable to start engine
Unable to drive vehicle
—
—
—
Maintenance job
Replace the ECU.
Er-1
ECU (Engine Control Unit) internal malfunction (output signal error):
signals cannot be transmitted between the ECU and the multi-func-
tion meter.
Able to start engine (unable when ECU is malfunctioning)
Able to drive vehicle (unable when ECU is malfunctioning)
—
9-54
FUEL INJECTION SYSTEM
Confirmation of service com-
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 displayed
→ Repeat the maintenance job.
Confirmation of service com-
Turn the main switch to "
(on).
Check that the fault code num-
ber is not displayed.
pletion
pletion
"