Possible causes For Models 2005 and up:– Faulty Air Fuel Ratio Sensor 1 Bank 2 – Air Fuel Ratio Sensor 1 Bank 2 circuit is open or shorted– Air Fuel Ratio Sensor 1 Bank 2 circuit electrical connection For Models before 2005:– Faulty Heated Oxygen Sensor 1 Bank 2– Heated Oxygen Sensor 1 Bank 2…
Tag: INFINITI
C1142 INFINITI Presure Sesnsor Circuit
Tech description There is factory service bulletin for the following Infiniti models: 2007
C1109 INFINITI Battery Voltage
When is the obd code mean? ABS actuator and electric unit (control unit) power voltage is too low.
C1140 INFINITI Actuator
When is the obd code mean? Actuator solenoid valve relay is ON, even if control unit sends off signal or Actuator solenoid valve relay is OFF, even if control unit sends on Relay, and Circuit signal.
C1130 INFINITI Engine Signal 1
When is the obd code mean? Based on the signal from Engine Control Module (ECM), the Control Area Network (CAN)-Local Arear Network (LAN) converter (CLC) judges that the engine control system is malfunctioning.
C1156 INFINITI Steering Angle Sensor Communications Circuit
When is the obd code mean? CAN communication line or steering angle sensor has generated an error.
P1402 INFINITI EGR Function Open
Possible causes – The EGR volume control valve circuit harness is open or shorted– EGR volume control valve leaking or stuck open– Faulty EGR temperature sensor Tech description Start by cleaning the EGR valve, if the code persist it may be necessary to replaced the EGR Valve Symptoms – Engine Light ON (or Service Engine…
P1217 INFINITI Engine Over Temperature
Possible causes – Thermostat– Cooling fan harness is open or shorted– Cooling fan circuit poor electrical connection– Faulty cooling fan motor– Engine Control Module (ECM) Program – Faulty IPDM E/R – Faulty Cooling fan control module– Radiator hose – Radiator– Radiator cap – Water pump Tech description The most likely cause that will trigger the…
P0420 INFINITI Catalyst System Efficiency Below Threshold Bank 1
Possible causes – Three way catalyst converter Bank 1– Exhaust tube– Intake air leaks– Fuel injectors may be faulty– Fuel injector leaks– Spark plugs may be faulty– Improper ignition timing– Engine Control Module (ECM) Tech description As the code description implies the P0420 code means that the vehicle’s control module has detected that the three-way…
P0430 INFINITI Catalyst System Efficiency Below Threshold Bank 2
Possible causes – Three way catalyst converter Bank 2– Exhaust tube– Intake air leaks– Fuel injectors may be faulty– Fuel injector leaks– Spark plugs may be faulty– Improper ignition timing– Engine Control Module (ECM)- Three way catalyst converter Bank 2– Exhaust tube– Intake air leaks– Fuel injectors may be faulty– Fuel injector leaks– Spark plugs…