Category: Chevrolet

P0850 Chevrolet Park/Neutral Switch Possible causes – Misadjusted Park/Neutral Switch– Faulty Park/Neutral Switch– Park/Neutral Switch harness is open or shorted– Park/Neutral Switch circuit poor electrical connection What about the obd code? The signal of the park/neutral position (PNP) switch is not changed in the process of engine starting and driving. Symptoms – Engine Light ON…

P0847 Chevrolet Transmission Fluid Pressure Sensor / Switch B Circuit Low OBD Code: System: Subsystem:  P0847 Chevrolet – (ASE)  Powertrain  Transmission Controls Trouble Code Description: Transmission Fluid Pressure Sensor / Switch B Circuit Low Location: Analysis: Possible Causes:  Switch B  End of Range – Circuit Lower Than Expected   Tech description:

P0848 Chevrolet Transmission Fluid Pressure Sensor / Switch B Circuit High OBD Code: System: Subsystem:  P0848 Chevrolet – (ASE)  Powertrain  Transmission Controls Trouble Code Description: Transmission Fluid Pressure Sensor / Switch B Circuit High Location: Analysis: Possible Causes:  Switch B  End of Range – Circuit Higher Than Expected   Tech description:

P0849 Chevrolet Transmission Fluid Pressure Sensor / Switch B Circuit Intermittent OBD Code: System: Subsystem:  P0849 Chevrolet – (ASE)  Powertrain  Transmission Controls Trouble Code Description: Transmission Fluid Pressure Sensor / Switch B Circuit Intermittent Location: Analysis: Possible Causes:  Switch B  Circuit Sporatic / Not Continuous   Tech description:

P0842 Chevrolet Transmission Fluid Pressure Sensor / Switch A Circuit Low OBD Code: System: Subsystem:  P0842 Chevrolet – (ASE)  Powertrain  Transmission Controls Trouble Code Description: Transmission Fluid Pressure Sensor / Switch A Circuit Low Location: Analysis: Possible Causes:  Switch A  End of Range – Circuit Lower Than Expected   Tech description:

P0843 Chevrolet Transmission Fluid Pressure Sensor / Switch A Circuit High OBD Code: System: Subsystem:  P0843 Chevrolet – (ASE)  Powertrain  Transmission Controls Trouble Code Description: Transmission Fluid Pressure Sensor / Switch A Circuit High Location: Analysis: Possible Causes:  Switch A  End of Range – Circuit Higher Than Expected   Tech description:

P0844 Chevrolet Transmission Fluid Pressure Sensor / Switch A Circuit Intermittent OBD Code: System: Subsystem:  P0844 Chevrolet – (ASE)  Powertrain  Transmission Controls Trouble Code Description: Transmission Fluid Pressure Sensor / Switch A Circuit Intermittent Location: Analysis: Possible Causes:  Switch A  Circuit Sporatic / Not Continuous   Tech description:

P0845 Chevrolet Transmission Fluid Pressure Sensor B Possible causes – Transmission Fluid Pressure Sensor B harness is open or shorted – Transmission Fluid Pressure Sensor B poor electrical connection – Faulty Transmission Fluid Pressure Sensor B – Transmission Valve Bosy Symptoms – Engine Light ON (or Service Engine Soon Warning Light) P0845 Chevrolet Description The…

P0846 Chevrolet 2-4 or 2C Pressure Switch Rationality Possible causes – Faulty Pressure Switch Rationality – Pressure Switch Rationality harness is open or shorted – Pressure Switch Rationality circuit poor electrical connection – Internal transmission damage – Faulty Engine Control Module (ECM) – Faulty Transmission Control Module (TCM) Symptoms – Engine Light ON (or Service…

P0840 Chevrolet Transmission Fluid Pressure Sensor A Possible causes – Transmission Fluid Pressure Sensor A harness is open or shorted – Transmission Fluid Pressure Sensor A poor electrical connection – Faulty Transmission Fluid Pressure Sensor A – Transmission Valve Body Symptoms – Engine Light ON (or Service Engine Soon Warning Light) P0840 Chevrolet Description The…

P0841 Chevrolet LR Pressure Switch Rationality Fault Possible causes – Transmission Solenoid/Pressure Switch harness is open or shorted – Transmission Solenoid/Pressure Switch circuit poor electrical connection – Faulty Transmission Solenoid/Pressure Switch – Internal transmission damage – Faulty Engine Control Module (ECM) – Faulty Transmission Control Module (TCM) Symptoms – Engine Light ON (or Service Engine…

P0839 Chevrolet Four Wheel Drive (4WD) Switch Circuit High OBD Code: System: Subsystem:  P0839 Chevrolet – (ASE)  Powertrain  Transmission Controls Trouble Code Description: Four Wheel Drive (4WD) Switch Circuit High Location: Analysis: Possible Causes:    End of Range – Circuit Higher Than Expected   Tech description:

P0837 Chevrolet Four Wheel Drive (4WD) Switch Circuit Range / Performance OBD Code: System: Subsystem:  P0837 Chevrolet – (ASE)  Powertrain  Transmission Controls Trouble Code Description: Four Wheel Drive (4WD) Switch Circuit Range / Performance Location: Analysis: Possible Causes:    Out of Expected Range   Tech description: