CF MOTO CF500-5B 2009, Service Manual, Page: 257 / 272

13 Troubleshooting
13 - 9
13
Trouble Code
! !
P0132 Oxygen Sensor Circuit Voltage High
Explanation
"
When engine starts, ECU check the Oxygen Sensor Circuit Voltage; When voltage is
continuously higher than 1.5 Volt, system decides Oxygen Sensor Circuit Voltage is short to power.
Note
Possible Troubles are as below
1
!
Short Circuit between Signal Circuit connect to
ECU Pin and Oxygen Sensor Oxygen Sensor Pin
1.
2
!
Short Circuit between Signal Circuit connect to
ECU Pin and other power circuit.
Note
Inspect as below
1
!
Check resistance between Signal Circuit
connect to ECU Pin and Oxygen Sensor Oxygen
Sensor Pin 1
2
!
Check resistance of Signal Circuit connect to
ECU Pin
Trouble Code
! !
P0133 Oxygen Sensor Aging
Explanation: Normally Air Fuel Ratio of Fuel and Air is shifting between Dense and Dilute; accordingly
Oxygen Sensor signal variate among different values. When Oxygen Sensor is aging, it goes less
sensitive to Fuel-Air-Mixture, which makes signals variate lower. ECU makes average cycle calculations
to Signal Variation; when it finds cycling slower as set, it decides Oxygen Sensor Aging.
Note
Possible Troubles are as below
1
!
Oxygen Sensor Aging, need replacement.
Trouble Code
! !
P0134 Oxygen Sensor Signal Failure
Explanation
"
When engine starts, ECU check the Oxygen Sensor Circuit Voltage; When ECU finds
voltage stays between 0.4-0.6 volt, it decides Oxygen Sensor Signal Circuit Short.
Note
Possible Troubles are as below
1
!
Short Circuit between Oxygen Sensor
connected to ECU Pin.
2
!
Bad connection of Oxygen Sensor
Connectors.(Socket Oxidized)
Note
Inspect as below
1
!
Check resistance between ECU connector and
Oxygen Sensor 4.
Trouble Code
! !
P0170 Self Studying found Closing Loop control Air Fuel Ratio irrational when
making End of Line Testing.
Trouble Code
! !
P0171 Self Studying found Closing Loop control Air Fuel Ratio too dulate when
making End of Line Testing.
Trouble Code
! !
P0172 Self Studying found Closing Loop control Air Fuel Ratio too dense when
making End of Line Testing.
(Note: This Inspection Process is only suitable when Air Inlet Pressure Sensor, Canister Control Valve
and Oxygen Sensor and so on has not shown with Trouble Code; If there is any other Trouble Code,
solve other Troubles first and then inspect Fuel Route correct or not)
Trouble Code
! !
P0201 Cylinder Injector Control Circuit Open
Note
Possible Troubles are as below
1
!
Injector Coil Open Circuit
2
!
Injector Connector Socket to ECU Pin bad connection
3
!
Injector Connector Socket to Main Relay bad
connection
Note
Inspect as below
1
!
Check resistance of Injector
2)Check cable is connected or not