Yamaha Phazer Venture Lite PZ50MTA 2011 Supplementary Service Manual page 33

Fault code No. 30
Diagnostic code No. – –
Item/components and probable cause
Order
Oil pressure dropped.
1
Oil pressure switch or sensor installation
2 status
Defective oil pressure switch.
3
4 ECU malfunction
Fault code No. 67
Diagnostic code No. – –
Item/components and probable cause
Order
Connections
Oil pressure sensor coupler
1
Connections
Wire harness ECU coupler
2
Continuity of wire harness.
3
4 Defective oil pressure sensor.
5 ECU malfunction
FUEL INJECTION SYSTEM
Symptom Engine stops when an oil pressure drop is detected.
Check or maintenance job
Place the snowmobile on a level surface, and then
check the oil pressure after warming up the
engine.
Refer to "ENGINE OIL REPLACEMENT".
Check the engine oil level
Refer to "ENGINE OIL LEVEL INSPECTION" in
CHAPTER 2.
Check for looseness or pinching.
Check that the switch and sensor are installed in
the specified position.
Remove the coupler of the oil pressure switch and
then check the continuity using a tester while
idling.
Normal oil pressure → switch OFF
Low oil pressure → switch ON
The resistance value of the oil pressure switch is
not within the specified range. → Replace the oil
pressure switch.
Replace the ECU.
Symptom Oil pressure sensor: open or short circuit detected.
Check or maintenance job
Check the couplers for any pins that may have
pulled out.
Check the locking condition of the couplers.
If there is a malfunction, repair/replace it and con-
nect the coupler securely.
Check the couplers for any pins that may have
pulled out.
Check the locking condition of the couplers.
If there is a malfunction, repair/replace it and con-
nect the coupler securely.
Open or short circuit →
Replace the wire harness.
Between oil pressure sensor and ECU coupler.
Black/Blue – Black/Blue
Yellow/Black – Yellow/Black
Blue – Blue
Replace if defective.
Replace the ECU.
24
FI
Reinstatement
method
Set the main
switch to "ON →
OFF → ON" and
then check the
blinking of the
fault code.
Reinstatement
method
Set the main
switch to "ON"
and then check
the blinking of
the fault code.