Troubleshooting Details - Yamaha N MAX GPD150-A 2015 Service Manual

6. Condition
The current conditions are displayed. (Detected/Recovered)
7. Symptom
The symptoms of the detected malfunction are displayed.
8. Diagnosis code
The diagnosis codes related to the detected malfunction are displayed.
9. FFD (only for models that can display freeze frame data)
The mark " " is displayed when the freeze frame data is available.
10.ECU conduction time (hour: minute: second)
The total ECU conduction time (total hours the vehicle's main switch was ON) when the malfunction
was detected is displayed.
11.Number of main switch operation after detection
The number of times the main switch was turned on between the malfunction detection and code
reading is displayed.
12.Number of occurrences
The number of malfunction occurrences between the malfunction detection and code reading is dis-
played.
EAS30508

TROUBLESHOOTING DETAILS

This section describes the measures per fault code number displayed on the computer. Check and ser-
vice the items or components that are the probable cause of the malfunction following the order given.
Fault code No.:
Fault code number displayed on the computer when the engine failed to work normally.
Diagnostic code No.:
Diagnostic code number to be used when the diagnostic mode is operated. Refer to "SELF-DIAGNOS-
TIC FUNCTION AND DIAGNOSTIC CODE TABLE" on page 9-5.
Fault code No. 12
Fault code No.
Item
Fail-safe system
Diagnostic code No.
Tool display
Procedure
Probable cause of malfunc-
Item
tion and check
1 Connection of crankshaft posi-
tion sensor coupler.
Check the locking condition of
the coupler.
Disconnect the coupler and
check the pins (bent or broken
terminals and locking condition
of the pins).
12
Crankshaft position sensor: no normal signals are received from the
crankshaft position sensor.
Unable to start engine
Unable to drive vehicle
—
—
—
Maintenance job
Improperly connected → Con-
nect the coupler securely or re-
place the wire harness.
8-31
FUEL INJECTION SYSTEM
Confirmation of service com-
Crank the engine.
Fault code number is not dis-
played → Service is finished.
Fault code number is displayed
→ Go to item 2.
pletion