Opel/Vauxhall Astra Fault Codes
You can find common Opel/Vauxhall Astra 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.
Jump To:Search Opel/Vauxhall Astra Codes Opel/Vauxhall Astra Recall Notices Common Opel/Vauxhall Astra Codes
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Opel/Vauxhall Astra 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 Opel/Vauxhall Astra has any recall notices on our sister site AutoRecalls.co, sorted by model year.View Opel/Vauxhall Astra Recalls »
Common Astra Fault Codes
These are the most common Astra fault codes that people are searching for.
System Too Lean (Bank 1)Learn More Fixes
Turbo / Super Charger UnderboostLearn More Fixes
Thermostat Heater Control Circuit / OpenLearn More
Fuel Trim Malfunction (Bank 1)Learn More Fixes
Engine Overboost ConditionLearn More Fixes
Intake Camshaft Position Timing - Over-Advanced (Bank 1)Learn More Fixes
Random/Multiple Cylinder Misfire DetectedLearn More Fixes
Camshaft Position Sensor Circuit MalfunctionLearn More Fixes
Exhaust Camshaft Position Timing - Over-Advanced (Bank 1)Learn More Fixes
Vehicle Speed Sensor MalfunctionLearn More
Camshaft Position Sensor B Circuit (Bank 2)Learn More
Exhaust Gas Recirculation Flow MalfunctionLearn More
O2 Sensor Circuit Malfunction (Bank 1 Sensor 2)Learn More
Shift Solenoid E ElectricalLearn More
Insufficient Coolant Temperature for Closed Loop Fuel ControlLearn More
Injector Circuit MalfunctionLearn More
Idle Control System MalfunctionLearn More
Evaporative Emission Control System Purge Control Valve circuit MalfunctionLearn More
Crankshaft Position Sensor A Circuit MalfunctionLearn More Fixes
Intake Air Temperature Circuit MalfunctionLearn More Fixes
Engine Coolant Temperature Circuit MalfunctionLearn More Fixes
O2 Sensor Circuit Malfunction (Bank 1 Sensor 1)Learn More Fixes
Manifold Absolute Pressure/Barometric Pressure Circuit MalfunctionLearn More
Fuel Volume Regulator Control Circuit Range/PerformanceLearn More
Generator Lamp L Control Circuit MalfunctionLearn More
System Too Rich (Bank 1)Learn More Fixes
Exhaust Gas Recirculation Flow Insufficient DetectedLearn More Fixes
Crankshaft Position Camshaft Position Correlation Bank 1 Sensor ALearn More Fixes
Cylinder 1 Contribution/Balance FaultLearn More Fixes
Mass or Volume Air flow Circuit Range/Performance ProblemLearn More Fixes
Manifold Absolute Pressure/Barometric Pressure Circuit High InputLearn More
O2 Sensor Circuit High Voltage (Bank 1 Sensor 2)Learn More Fixes
O2 Sensor Circuit Slow Response (Bank 1 Sensor 2)Learn More
Mass or Volume Air flow Circuit MalfunctionLearn More Fixes
Glow Plug/Heater Circuit A Malfunction More details...Learn More Fixes
MAF Sensor Out Of Self Test Range./KOER Not Able To Complete KOER AbortedLearn More
SBDS Interactive CodesLearn More
Accelerator/Throttle Pedal Position Sensor FaultLearn More
SBDS Interactive CodesLearn More
Throttle Position Sensor Out Of RangeLearn More
Second Fuel Pump Faulty or Ground FaultLearn More
Key Line VoltageLearn More
Series Throttle Control System MalfunctionLearn More
Powertrain DTCs Available in Another ModuleLearn More
Auxillary Speed Sensor FaultLearn More
Immobilizer/ECM Communication ErrorLearn More
DPFE Sensor Upstream Hose Off Or PluggedLearn More
Intake air flap control actuator – circuit malfunctionLearn More
Air Bypass Valve Circuit MalfunctionLearn More
A/C Clutch Circuit MalfunctionLearn More
PSPS Out Of Self Test RangeLearn More
Throttle Position (TP) Sensor Circuit Intermittent Low VoltageLearn More
Dual Alternator Upper FaultLearn More
SBDS Interactive CodesLearn More
Engine Torque Monitoring 2 Control Limint ExceededLearn More
IAT Sensor Open/ShortLearn More
Gear 3 incorrect RatioLearn More
IAT Sensor (D/C) Open/ShortLearn More
Transmission Indeterminate Failure (Failed to Neutral)Learn More
Immobilizer to PCM Signal ErrorLearn More
HO2S Insufficient Switching Sensor 1Learn More
EGRV Circuit MalfunctionLearn More
Closed Loop Control Function Bank 1Learn More
SGC (Cam Position) Sensor Circuit Malfunction/ Crankshaft Position - Camshaft Position CorrelationLearn More
Cylinder 1 Misfire DetectedLearn More Fixes
Clutch Position Sensor Circuit High MalfunctionLearn More
Brake Pedal Input Circuit Battery ShortLearn More
O2 Sensor Heater Circuit Malfunction (Bank 1 Sensor 2)Learn More Fixes
Fuel Rail Pressure Sensor Circuit MalfunctionLearn More
Lost Communication With ECM/PCM "A"Learn More Fixes
Control Module Communication Bus "A" OffLearn More Fixes
Theft Deterrent Start Enable Signal Not Correct/ Main Relay Malfunction (Power Hold)Learn More
PSP Switch Input MalfunctionLearn More
Wastegate Solenoid Circuit MalfunctionLearn More
FAN CONTROL 1 CIRCUIT OPENLearn More
- Manufacturer: Opel/Vauxhall
About the Astra
The Astra first made its debut in 1991 as the successor to the Opel Kadett. Since then, there have been six generations to be released under the updated nameplate.
Because of the model’s heritage, the first generation was given the designation of Astra F. Each generation ascends alphabetically. This means the latest generation, which was released in 2021, is the Astra L.
It is no secret that the small family car class is massively competitive. This has put the Astra up against some fierce competition like the Ford Focus, Peugeot 308, and Volkswagen Golf.
Unfortunately for owners, some of the most common fault codes for the model can be serious ones. The most common of these is P0171, which represents that the engine is running too lean.
This code can make it quite hard to pinpoint the cause as anything that can disrupt the ideal air-fuel mixture upstream of the engine can be the cause. Owners have reported that either a faulty MAF or O2 sensor can be some of the main causes of the issue.
The next most common issue for the Astra is fault code P0299, which represents an underboost condition from the turbocharger system. Of course, this means only Astra models like the OPC and diesel variants that are fitted with turbos can suffer from this code.
The most obvious cause of this issue would be a faulty component in the turbocharger system. This can include the turbocharger itself, as well as other parts like the wastegate actuator. Owners have reported that a faulty MAP sensor can also be a common cause.
Some Opel models like the Astra can also be prone to thermostat issues like P0597. A defective thermostat heater is one of the most commonly reported causes for various Astra models.