Chevrolet Cobalt Fault Codes
You can find common Chevrolet Cobalt fault codes on this page that when clicked take you to a detailed description.
You can also type in the fault code you are getting below to find a more detailed description.
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Chevrolet Cobalt Recalls
When a car manufacturer detects a problem with a model they put out a recall notice and more often than not offer to fix the problem free of charge.
You can check to see if your Chevrolet Cobalt has any recall notices on our sister site AutoRecalls.co, sorted by model year.View Chevrolet Cobalt Recalls »
Common Cobalt Fault Codes
These are the most common Cobalt fault codes that people are searching for.
System Gross Leak Evaporative EmissionLearn More Fixes
Mass or Volume Air Flow Circuit Low Voltage InputLearn More Fixes
Intake Camshaft Position Actuator Circuit / Open (Bank 1)Learn More Fixes
Internal Control Module Memory Check Sum ErrorLearn More
Evaporative Emission Control System Vent Valve/Solenoid Circuit MalfunctionLearn More Fixes
Evaporative Emission Control System Leak DetectedLearn More Fixes
Knock Sensor 1 Circuit Range/Performance (Bank 2 or Single Sensor)Learn More Fixes
Heated Oxygen Sensor (H02S) Heater Control Circuit Bank 1 Sensor 1Learn More Fixes
O2 Sensor Heater Circuit Malfunction (Bank 1 Sensor 1)Learn More Fixes
Secondary Air Injection System Incorrect Flow DetectedLearn More Fixes
Catalyst System Efficiency Below Threshold (Bank 1)Learn More Fixes
System Too Lean (Bank 1)Learn More Fixes
Intake Camshaft Position Timing - Over-Advanced (Bank 1)Learn More Fixes
Exhaust Camshaft Position Actuator Circuit / Open (Bank 1)Learn More Fixes
Engine Coolant Flow Low/PerformanceLearn More
Cooling Fan 1 Control Circuit MalfunctionLearn More
Camshaft Position Sensor Circuit MalfunctionLearn More Fixes
HO2S Heater Resistance Bank 1 Sensor 2 (PCM)Learn More
Manifold Absolute Pressure/Barometric Pressure Circuit Range/Performance ProblemLearn More Fixes
Cylinder 1 Misfire DetectedLearn More Fixes
Shift Solenoid A Control Circuit HighLearn More
Idle Control System RPM higher Than ExpectedLearn More Fixes
Crankshaft Position Sensor A Circuit MalfunctionLearn More Fixes
Knock Sensor 1 Circuit low Input (Bank 2 or Single Sensor)Learn More
Shift Solenoid A Control Circuit LowLearn More
Heated Oxygen Sensor (HO2S) Heater Control Circuit Bank 1 Sensor 2Learn More Fixes
Engine Oil Pressure Sensor/Switch Circuit MalfunctionLearn More
Evaporative Emissions System Small Leak DetectedLearn More Fixes
Evaporative Emission Control System Incorrect Purge flowLearn More Fixes
Coolant Thermostat (Coolant Temp Below Thermostat Regulating Temperature)Learn More Fixes
Crankshaft Position System Variation Not LearnedLearn More
Throttle/Pedal Position Sensor/Switch A Circuit Range/Performance ProblemLearn More
Transmission Control System MalfunctionLearn More Fixes
Control Module Communication Bus "A" OffLearn More Fixes
Lost Communication With ECM/PCM "A"Learn More Fixes
Exhaust Camshaft Position Timing - Over-Advanced (Bank 1)Learn More Fixes
System Too Rich (Bank 1)Learn More Fixes
Charging System Voltage Too LowLearn More
IMRC Input Error (Bank 1)Learn More
HO2S Insufficient Switching Sensor 1Learn More
Fuel Pump A Low Flow/PerformanceLearn More
Transmission Fluid Pressure Manual Valve Position SwitchLearn More
MAF Sensor Out Of Self Test Range./KOER Not Able To Complete KOER AbortedLearn More
O2 Sensor Heater Circuit Malfunction (Bank 1 Sensor 2)Learn More Fixes
Transmission Neutral Safety Switch Short Circuit To BatteryLearn More
O2 Sensor Circuit High Voltage (Bank 1 Sensor 2)Learn More Fixes
Starter Relay CircuitLearn More
Crankshaft Position Camshaft Position Correlation Bank 1 Sensor BLearn More Fixes
Fuel Pump Secondary Circuit MalfunctionLearn More
Throttle/Pedal Position Sensor/Switch A / B Voltage CorrelationLearn More Fixes
Evaporative Emission System High Purge FlowLearn More Fixes
Evaporative Emission Control System Vent Control Circuit MalfunctionLearn More Fixes
Dual Battery Control Module PerformanceLearn More
Random/Multiple Cylinder Misfire DetectedLearn More Fixes
Fuel Pressure Regulator PerformanceLearn More Fixes
SCP (J1850) Invalid or Missing Data for Primary IdLearn More
Lost Communication With Throttle Actuator Control ModuleLearn More
SGC (Cam Position) Sensor Circuit Malfunction/ Crankshaft Position - Camshaft Position CorrelationLearn More
Theft Deterrent Fuel Enable Signal Not Received/ B+ Supply To VCRM A/C Circuit MalfunctionLearn More
IDM Input Circuit Malfunction/ Ignition Coil Control Circuit High VoltageLearn More
Maximum Adaptive & Long Term ShiftLearn More
Intake Camshaft Position Timing - Over-Retarded (Bank 1)Learn More Fixes
Crankshaft Position Camshaft Position Correlation Bank 1 Sensor ALearn More Fixes
Intake Air Temperature Circuit High InputLearn More Fixes
O2 Sensor Circuit Low Voltage (Bank 1 Sensor 1)Learn More Fixes
O2 Sensor Circuit No Activity Detected (Bank 1 Sensor 1)Learn More Fixes
O2 Sensor Circuit Low Voltage (Bank 1 Sensor 2)Learn More Fixes
System Too Rich (Bank 2)Learn More Fixes
Cylinder 2 Misfire DetectedLearn More Fixes
Cylinder 3 Misfire DetectedLearn More Fixes
Cylinder 4 Misfire DetectedLearn More Fixes
Cylinder 5 Misfire DetectedLearn More Fixes
Cylinder 6 Misfire DetectedLearn More Fixes
Knock Sensor 1 Circuit (Bank 2 or Single Sensor)Learn More Fixes
- Manufacturer: Chevrolet
About the Cobalt
The Chevrolet Cobalt first made its debut in 2004 under General Motors. The compact model was later discontinued and succeeded by the Chevrolet Cruze in 2020.
Chevrolet only released two generations since its initial debut. The second and latest of these came in 2011. There was a one-year gap between these generations due to General Motors discontinuing the model for 2010.
It was also sold as the Pontiac G5 in the United States. This represented a rebadged version of the Cobalt. The Chevrolet Cruze is often considered to be the new and improved version of the Cobalt. It is also very similar to the Chevrolet Equinox.
One of the most common issues that the model suffered from is P0455, which indicates that there is a gross leak in the evaporative emissions control (EVAP) system.
This code is almost always caused by a loose or defective gas cap. However, it is also possible that the vehicle requires a smoke test to pinpoint the leak.
Another common problem is P0102. This code indicates that there is a low voltage signal from the mass airflow (MAF) sensor.
This code is typically caused by a faulty MAF sensor. However, it is also commonly caused by a faulty or dead battery. Owners may have to replace one or both of these parts. Checking the battery is a good first step.
Fault code P0010 is another code that owners have commonly reported. This code indicates that there is a fault with the intake camshaft position actuator circuit.
This can be caused by a faulty actuator or even camshaft position sensor. In some cases, neglecting to change engine oil frequently enough can cause the actuator to get stuck. Checking the oil should be one of the first steps for this issue.