P2438 Secondary Air Injection System Air Flow / Pressure Sensor Circuit High (Bank 2) OBD Code: System: Subsystem: P2438 – (ASE) Powertrain Auxiliary Emission Controls Trouble Code Description: Secondary Air Injection System Air Flow / Pressure Sensor Circuit High (Bank 2) Location: Analysis: Possible Causes: Bank 2 End of Range – Circuit Higher Than Expected …
Category: OBDii Powertrain Codes
P2439 Secondary Air Injection System Air Flow / Pressure Sensor Circuit Intermittent / Erratic (Bank 2)
P2439 Secondary Air Injection System Air Flow / Pressure Sensor Circuit Intermittent / Erratic (Bank 2) OBD Code: System: Subsystem: P2439 – (ASE) Powertrain Auxiliary Emission Controls Trouble Code Description: Secondary Air Injection System Air Flow / Pressure Sensor Circuit Intermittent / Erratic (Bank 2) Location: Analysis: Possible Causes: Bank 2 Periodically Unstable Circuit Tech…
P2440 Secondary Air Injection System Switching Valve Stuck Open
P2440 Secondary Air Injection System Switching Valve Stuck Open Possible causes – Faulty Vacuum Switching Valve (VSV)– Vacuum Switching Valve (VSV) harness is open or shorted– Vacuum Switching Valve (VSV) circuit poor electrical connection– Faulty Pressure Sensor– Faulty Air Switching Valve What about the obd code? If the Engine Control Module (ECM) receives the pulsation…
P2441 Secondary Air Injection System Switching Valve Stuck Closed Bank 1
P2441 Secondary Air Injection System Switching Valve Stuck Closed Bank 1 Possible causes – Faulty Vacuum Switching Valve (VSV)– Vacuum Switching Valve (VSV) harness is open or shorted– Vacuum Switching Valve (VSV) circuit poor electrical connection– Faulty Pressure Sensor– Faulty Air Switching Valve What about the obd code? If the Engine Control Module (ECM) receives…
P2436 Secondary Air Injection System Air Flow / Pressure Sensor Circuit Range / Performance (Bank 2)
P2436 Secondary Air Injection System Air Flow / Pressure Sensor Circuit Range / Performance (Bank 2) OBD Code: System: Subsystem: P2436 – (ASE) Powertrain Auxiliary Emission Controls Trouble Code Description: Secondary Air Injection System Air Flow / Pressure Sensor Circuit Range / Performance (Bank 2) Location: Analysis: Possible Causes: Bank 2 Out of Expected Range …
P2437 Secondary Air Injection System Air Flow / Pressure Sensor Circuit Low (Bank 2)
P2437 Secondary Air Injection System Air Flow / Pressure Sensor Circuit Low (Bank 2) OBD Code: System: Subsystem: P2437 – (ASE) Powertrain Auxiliary Emission Controls Trouble Code Description: Secondary Air Injection System Air Flow / Pressure Sensor Circuit Low (Bank 2) Location: Analysis: Possible Causes: Bank 2 End of Range – Circuit Lower Than Expected …
P2430 Secondary Air Injection System Pressure Sensor Stuck In Range-Signal Performance Fault
P2430 Secondary Air Injection System Pressure Sensor Stuck In Range-Signal Performance Fault Possible causes – Faulty AIR Pressure Sensor– AIR Pressure Sensor harness is open or shorted– AIR Pressure Sensor circuit poor electrical connection What about the obd code? The AIR Pressure Sensor is reporting a pressure greater than or less than expected during the…
P2431 Secondary Air Injection System Pressure Sensor Signal Performance Fault
P2431 Secondary Air Injection System Pressure Sensor Signal Performance Fault Possible causes – Faulty AIR Pressure Sensor– AIR Pressure Sensor harness is open or shorted– AIR Pressure Sensor circuit poor electrical connection What about the obd code? The AIR Pressure Sensor is reporting a pressure greater than or less than expected during the system monitor…
P2432 Secondary Air Injection System Pressure Sensor Circuit Low Voltage
P2432 Secondary Air Injection System Pressure Sensor Circuit Low Voltage Possible causes – Faulty AIR Pressure Sensor– AIR Pressure Sensor harness is open or shorted– AIR Pressure Sensor circuit poor electrical connection Symptoms – Engine Light ON (or Service Engine Soon Warning Light) P2432 Description The Secondary Air Injection (AIR) System aids in the reduction…
P2433 Secondary Air Injection System Pressure Sensor Circuit High Voltage
P2433 Secondary Air Injection System Pressure Sensor Circuit High Voltage Possible causes – Faulty AIR Pressure Sensor– AIR Pressure Sensor harness is open or shorted– AIR Pressure Sensor circuit poor electrical connection What about the obd code? The PCM has detected a high voltage condition on the AIR Pressure Sensor signal circuit Symptoms – Engine…
P2434 Secondary Air Injection System Air Flow / Pressure Sensor Circuit Intermittent / Erratic (Bank 1)
P2434 Secondary Air Injection System Air Flow / Pressure Sensor Circuit Intermittent / Erratic (Bank 1) OBD Code: System: Subsystem: P2434 – (ASE) Powertrain Auxiliary Emission Controls Trouble Code Description: Secondary Air Injection System Air Flow / Pressure Sensor Circuit Intermittent / Erratic (Bank 1) Location: Analysis: Possible Causes: Bank 1 Periodically Unstable Circuit Tech…
P2435 Secondary Air Injection System Air Flow / Pressure Sensor Circuit (Bank 2)
P2435 Secondary Air Injection System Air Flow / Pressure Sensor Circuit (Bank 2) OBD Code: System: Subsystem: P2435 – (ASE) Powertrain Auxiliary Emission Controls Trouble Code Description: Secondary Air Injection System Air Flow / Pressure Sensor Circuit (Bank 2) Location: Analysis: Possible Causes: Bank 2 Circuit Issue Tech description:
P242B Exhaust Gas Temperature Sensor Circuit Range / Performance (Bank 1 – Sensor 3)
P242B Exhaust Gas Temperature Sensor Circuit Range / Performance (Bank 1 – Sensor 3) OBD Code: System: Subsystem: P242B – (ASE) Powertrain Auxiliary Emission Controls Trouble Code Description: Exhaust Gas Temperature Sensor Circuit Range / Performance (Bank 1 – Sensor 3) Location: Analysis: Possible Causes: Bank 1 – Sensor 3 Out of Expected Range Tech…
P242C Exhaust Gas Temperature Sensor Circuit Low (Bank 1 – Sensor 3)
P242C Exhaust Gas Temperature Sensor Circuit Low (Bank 1 – Sensor 3) OBD Code: System: Subsystem: P242C – (ASE) Powertrain Auxiliary Emission Controls Trouble Code Description: Exhaust Gas Temperature Sensor Circuit Low (Bank 1 – Sensor 3) Location: Analysis: Possible Causes: Bank 1 – Sensor 3 End of Range – Circuit Lower Than Expected Tech…
P242D Exhaust Gas Temperature Sensor Circuit High (Bank 1 – Sensor 3)
P242D Exhaust Gas Temperature Sensor Circuit High (Bank 1 – Sensor 3) OBD Code: System: Subsystem: P242D – (ASE) Powertrain Auxiliary Emission Controls Trouble Code Description: Exhaust Gas Temperature Sensor Circuit High (Bank 1 – Sensor 3) Location: Analysis: Possible Causes: Bank 1 – Sensor 3 End of Range – Circuit Higher Than Expected Tech…
P242E Exhaust Gas Temperature Sensor Circuit Intermittent / Erratic (Bank 1 – Sensor 3)
P242E Exhaust Gas Temperature Sensor Circuit Intermittent / Erratic (Bank 1 – Sensor 3) OBD Code: System: Subsystem: P242E – (ASE) Powertrain Auxiliary Emission Controls Trouble Code Description: Exhaust Gas Temperature Sensor Circuit Intermittent / Erratic (Bank 1 – Sensor 3) Location: Analysis: Possible Causes: Bank 1 – Sensor 3 Periodically Unstable Circuit Tech description:
P242F Diesel Particulate Filter Restriction Ash Accumulation
P242F Diesel Particulate Filter Restriction Ash Accumulation OBD Code: System: Subsystem: P242F – (ASE) Powertrain Auxiliary Emission Controls Trouble Code Description: Diesel Particulate Filter Restriction Ash Accumulation Location: Analysis: Possible Causes: Tech description:
P2428 Exhaust Gas Temperature Too High (Bank 1)
P2428 Exhaust Gas Temperature Too High (Bank 1) OBD Code: System: Subsystem: P2428 – (ASE) Powertrain Auxiliary Emission Controls Trouble Code Description: Exhaust Gas Temperature Too High (Bank 1) Location: Analysis: Possible Causes: Bank 1 Tech description:
P2429 Exhaust Gas Temperature Too High (Bank 2)
P2429 Exhaust Gas Temperature Too High (Bank 2) OBD Code: System: Subsystem: P2429 – (ASE) Powertrain Auxiliary Emission Controls Trouble Code Description: Exhaust Gas Temperature Too High (Bank 2) Location: Analysis: Possible Causes: Bank 2 Tech description:
P242A Exhaust Gas Temperature Sensor Circuit (Bank 1 – Sensor 3)
P242A Exhaust Gas Temperature Sensor Circuit (Bank 1 – Sensor 3) OBD Code: System: Subsystem: P242A – (ASE) Powertrain Auxiliary Emission Controls Trouble Code Description: Exhaust Gas Temperature Sensor Circuit (Bank 1 – Sensor 3) Location: Analysis: Possible Causes: Bank 1 – Sensor 3 Circuit Issue Tech description: