P0447 Volvo EVAP System Vent Control Circuit Open Possible causes – Faulty canister vent control valve– Purge Control Valve harness is open or shorted– Purge Control Valve electrical circuit poor connection What about the obd code? An improper voltage signal is sent to Engine Control Module (ECM) through Evaporative Emission System (EVAP) canister vent control…
P0446 Volvo Evaporative Emission Vent System Performance
P0446 Volvo Evaporative Emission Vent System Performance Possible causes – Plugged vapor canister– Faulty vent solenoid– Pinched or blocked EVAP hose– Faulty FTP sensor Tech description Dirt and dust intrusion into the EVAP canister vent hose assembly, resulting in restricted air flow, may cause this condition. What about the obd code? The Powertrain Control Module…
P0445 Volvo EVAP Purge Solenoid Circuit
P0445 Volvo EVAP Purge Solenoid Circuit Possible causes – Faulty Evaporative Emission (EVAP) Purge Solenoid Control– Evaporative Emission (EVAP) Purge Solenoid Control harness is open or shorted– Evaporative Emission (EVAP) Purge Solenoid Control circuit poor electrical connection What about the obd code? – An excessively high voltage signal is sent to Engine Control Module (ECM)…
P0444 Volvo Evaporative Emission Control System Purge Control Valve Circuit Open
P0444 Volvo Evaporative Emission Control System Purge Control Valve Circuit Open Possible causes – Faulty Evaporative Emission (EVAP) Purge Solenoid Control– Evaporative Emission (EVAP) Purge Solenoid Control harness is open or shorted– Evaporative Emission (EVAP) Purge Solenoid Control circuit poor electrical connection What about the obd code? – An excessively low voltage signal is sent…
P0443 Volvo EVAP Canister Purge Valve Circuit Malfunction
P0443 Volvo EVAP Canister Purge Valve Circuit Malfunction Possible causes – Faulty Evaporative Emission (EVAP) Purge Solenoid Control– Evaporative Emission (EVAP) Purge Solenoid Control harness is open or shorted– Evaporative Emission (EVAP) Purge Solenoid Control circuit poor electrical connection What about the obd code? An improper voltage signal is sent to Engine Control Module (ECM)…
P0442 Volvo EVAP Control System Leak Detected Small Leak
P0442 Volvo EVAP Control System Leak Detected Small Leak Possible causes – Missing or loose fuel cap– Incorrect fuel filler cap used– Fuel filler cap remains open or fails to close– Foreign matter caught in fuel filler cap – EVAP canister or fuel tank leaks– EVAP system hose leaking– Fuel tank leaking Tech description What…
P0441 Volvo EVAP System Incorrect Purge Flow
P0441 Volvo EVAP System Incorrect Purge Flow Possible causes – Missing Fuel cap– Incorrect fuel filler cap used– Fuel filler cap remains open or fails to close– Foreign matter caught in fuel filler cap– Incorrect fuel tank vacuum relief valve Tech description The P0441 Volvo code means that the control module has detected a leak…
P0440 Volvo EVAP Canister Purge Regulator Valve
P0440 Volvo EVAP Canister Purge Regulator Valve Possible causes – Missing or loose fuel cap– Incorrect fuel filler cap used– Fuel filler cap remains open or fails to close– Foreign matter caught in fuel filler cap– EVAP canister or fuel tank leaks– EVAP system hose leaking– Fuel tank leaking Tech description The P0440 Volvo code…
P043f Evaporative Emission System Reference Orifice High Flow
P043f Evaporative Emission System Reference Orifice High Flow Possible causes – Faulty Vacuum Pump Module– Vacuum Pump Module harness is open or shorted– Vacuum Pump Module circuit poor electrical connection.– Faulty Engine Control Module (ECM) What about the obd code? To determine leak criterion (Reference pressure), vacuum pump creates negative pressure in canister pump module…
P043D Volvo Catalyst Temperature Sensor Circuit High (Bank 2 – Sensor 2)
P043D Volvo Catalyst Temperature Sensor Circuit High (Bank 2 – Sensor 2) OBD Code: System: Subsystem: P043D Volvo – (ASE) Powertrain Auxiliary Emission Controls Trouble Code Description: Catalyst Temperature Sensor Circuit High (Bank 2 – Sensor 2) Location: Analysis: Possible Causes: Bank 2 – Sensor 2 End of Range – Circuit Higher Than Expected Tech…
P043C Volvo Catalyst Temperature Sensor Circuit Low (Bank 2 – Sensor 2)
P043C Volvo Catalyst Temperature Sensor Circuit Low (Bank 2 – Sensor 2) OBD Code: System: Subsystem: P043C Volvo – (ASE) Powertrain Auxiliary Emission Controls Trouble Code Description: Catalyst Temperature Sensor Circuit Low (Bank 2 – Sensor 2) Location: Analysis: Possible Causes: Bank 2 – Sensor 2 End of Range – Circuit Lower Than Expected Tech…
P043B Volvo Catalyst Temperature Sensor Circuit Range / Performance (Bank 2 – Sensor 2)
P043B Volvo Catalyst Temperature Sensor Circuit Range / Performance (Bank 2 – Sensor 2) OBD Code: System: Subsystem: P043B Volvo – (ASE) Powertrain Auxiliary Emission Controls Trouble Code Description: Catalyst Temperature Sensor Circuit Range / Performance (Bank 2 – Sensor 2) Location: Analysis: Possible Causes: Bank 2 – Sensor 2 Out of Expected Range Tech…
P043A Volvo Catalyst Temperature Sensor Circuit (Bank 2 – Sensor 2)
P043A Volvo Catalyst Temperature Sensor Circuit (Bank 2 – Sensor 2) OBD Code: System: Subsystem: P043A Volvo – (ASE) Powertrain Auxiliary Emission Controls Trouble Code Description: Catalyst Temperature Sensor Circuit (Bank 2 – Sensor 2) Location: Analysis: Possible Causes: Bank 2 – Sensor 2 Circuit Issue Tech description: Volvo Vehicle:Volvo C70,Volvo S40,Volvo XC90,Volvo XC70,Volvo XC60,Volvo…
P0439 Volvo Catalyst Heater Control Circuit Bank 2
P0439 Volvo Catalyst Heater Control Circuit Bank 2 Possible causes – Catalyst Temperature Sensor harness is open or shorted– Catalyst Temperature Sensor circuit poor electrical connection– Faulty Catalyst Temperature Sensor Symptoms – Engine Light ON (or Service Engine Soon Warning Light) P0439 Volvo Description The Engine Control Module (ECM) monitors the switching frequency ratio of…
P0438 Volvo Catalyst Temperature Sensor High Input Bank 2 Sensor 1
P0438 Volvo Catalyst Temperature Sensor High Input Bank 2 Sensor 1 Possible causes – Catalyst Temperature Sensor harness is open or shorted– Catalyst Temperature Sensor circuit poor electrical connection– Faulty Catalyst Temperature Sensor Tech description As the code description implies the P0438 Volvo code means that the vehicle’s control module has detected that the three-way…
P0437 Volvo Catalyst Temperature Sensor Low Input Bank 2 Sensor 1
P0437 Volvo Catalyst Temperature Sensor Low Input Bank 2 Sensor 1 Possible causes – Catalyst Temperature Sensor harness is open or shorted– Catalyst Temperature Sensor circuit poor electrical connection– Faulty Catalyst Temperature Sensor Tech description As the code description implies the P0437 Volvo code means that the vehicle’s control module has detected that the three-way…
P0436 Volvo Catalyst Temperature Sensor Range/Performance Bank 2 Sensor 1
P0436 Volvo Catalyst Temperature Sensor Range/Performance Bank 2 Sensor 1 Possible causes – Catalyst Temperature Sensor harness is open or shorted– Catalyst Temperature Sensor circuit poor electrical connection– Faulty Catalyst Temperature Sensor Tech description As the code description implies the P0436 Volvo code means that the vehicle’s control module has detected that the three-way catalytic…
P0435 Volvo Catalyst Temperature Sensor Circuit Bank 2 Sensor 1
P0435 Volvo Catalyst Temperature Sensor Circuit Bank 2 Sensor 1 Possible causes – Catalyst Temperature Sensor harness is open or shorted– Catalyst Temperature Sensor circuit poor electrical connection– Faulty Catalyst Temperature Sensor Tech description As the code description implies the P0435 Volvo code means that the vehicle’s control module has detected that the three-way catalytic…
P0434 Volvo Heated Catalyst Temperature Below Threshold Bank 2
P0434 Volvo Heated Catalyst Temperature Below Threshold Bank 2 Possible causes – Air leak before catalytic converter– Faulty oxygen sensor– Faulty Catalytic Converter Tech description As the code description implies the P0434 Volvo code means that the vehicle’s control module has detected that the three-way catalytic converter is not working properly (is not as efficient…
P0433 Volvo Heated Catalyst Efficiency Below Threshold Bank 2
P0433 Volvo Heated Catalyst Efficiency Below Threshold Bank 2 Possible causes – Air leak before catalytic converter– Faulty oxygen sensor– Faulty Catalytic Converter Tech description As the code description implies the P0433 Volvo code means that the vehicle’s control module has detected that the three-way catalytic converter is not working properly (is not as efficient…