Description OBD-II Trouble Code Description for P0408 Hummer Exhaust Gas Recirculation Sensor “B” Circuit High What does this mean? OBD2 Code P0408 Hummer definition: The optical sensor provides a high resolution signal to the Powertrain Control Module (PCM) by counting pulses on the sensor disk located in the injection pump. The high resolution is one…
Category: HUMMER
Hummer P0406 Exhaust Gas Recirculation Temperature Sensor Circuit High Input
Description OBD-II Trouble Code Description for P0406 Hummer Exhaust Gas Recirculation Sensor “A” Circuit High What does this mean? OBD2 Code P0406 Hummer definition: The optical sensor provides a high resolution signal to the Powertrain Control Module (PCM) by counting pulses on the sensor disk located in the injection pump. The high resolution is one…
Hummer P0405 Exhaust Gas Recirculation Position Sensor Circuit Low Voltage
Description OBD-II Trouble Code Description for P0405 Hummer Exhaust Gas Recirculation Sensor “A” Circuit Low What does this mean? OBD2 Code P0405 Hummer definition: There are different designs of EGR (Exhaust Gas Recirculation) systems, but they all operate in a similar way. The EGR valve is a PCM (Powertrain Control Module) controlled valve that allows…
Hummer P0404 Exhaust Gas Recirculation Control Circuit Range/Performance
Description OBD-II Trouble Code Description for P0404 Hummer Exhaust Gas Recirculation Control Circuit Range/Performance What does this mean? OBD2 Code P0404 Hummer definition: The EGR (Exhaust Gas Recirculation) system’s purpose is to redirect exhaust gas back into the cylinders. Since exhaust gas is inert, it displaces oxygen and fuel, thereby lowering cylinder temps, which, in…
Hummer P0403 Exhaust Gas Recirculation Control Circuit
Description OBD-II Trouble Code Description for P0403 Hummer Exhaust Gas Recirculation Control Circuit What does this mean? OBD2 Code P0403 Hummer definition: The Exhaust Gas Recirculation (EGR) system is controlled by a vacuum solenoid. The solenoid is supplied ignition voltage. The Powertrain Control Module (PCM) controls the vacuum solenoid by grounding the control circuit(ground) or…
Hummer P0402 Exhaust Gas Recirculation Flow Excessive Detected
Description OBD-II Trouble Code Description for P0402 Hummer Exhaust Gas Recirculation Flow Excessive Detected What does this mean? OBD2 Code P0402 Hummer definition: EGR stands for Exhaust Gas Recirculation. It is part of the vehicle emmissions system, and is used to reduce combustion temperature and pressure to control Oxides of Nitrogen. There are generally three…
Hummer P0401 Exhaust Gas Recirculation Flow Insufficient Detected
Description OBD-II Trouble Code Description for P0401 Hummer Exhaust Gas Recirculation Flow Insufficient Detected What does this mean? OBD2 Code P0401 Hummer definition: EGR stands for Exhaust Gas Recirculation. It is part of the vehicle emmissions system, and is used to reduce combustion temperature and pressure to control Oxides of Nitrogen. There are generally three…
Hummer P0400 Exhaust Gas Recirculation Flow
Description OBD-II Trouble Code Description for P0400 Hummer Exhaust Gas Recirculation Flow What does this mean? OBD2 Code P0400 Hummer definition: The exhaust gas recirculation (EGR) valve is vacuum controlled valve that regulates the amount of exhaust gases that re-enter the cylinders. The powertrain control module (PCM) determines how much based on engine load, temp,…
Hummer P0394 Camshaft Position Sensor B Circuit Intermittent Bank 2
Description OBD-II Trouble Code Description for P0394 Hummer Camshaft Position Sensor “B” Circuit Intermittent What does this mean? OBD2 Code P0394 Hummer definition: The optical sensor provides a high resolution signal to the Powertrain Control Module (PCM) by counting pulses on the sensor disk located in the injection pump. The high resolution is one of…
Hummer P0392 Camshaft Position Sensor B Circuit Low Bank 2
Description OBD-II Trouble Code Description for P0392 Hummer Camshaft Position Sensor “B” Circuit Low What does this mean? OBD2 Code P0392 Hummer definition: The optical sensor provides a high resolution signal to the Powertrain Control Module (PCM) by counting pulses on the sensor disk located in the injection pump. The high resolution is one of…