Safety Warning
DIY auto repair can cause serious injury, fire, or vehicle damage. These guides are for informational purposes only. Always follow OEM torque specs, wear PPE, and consult a certified mechanic if you are unsure. You are solely responsible for your safety.
2011 Volkswagen Golf Base, 2D Hatchback, 2.5 A, StandardFACTORY OEM SERVICE PROCEDURE
2.5L - Generic Scan Tool - Engine Code(S): CBTA & CBUA
- St Generic Scan Tool
- General Information
- Description And Operation
- Diagnosis And Testing
- Preliminary Check
- Readiness Code
- Diagnostic Modes 01 - 09
- Notes
- Diagnostic Mode 01 - Read Current System Data
- Diagnostic Mode 02 - Read Operating Conditions
- Diagnostic Mode 03 - Read DTC Memory
- Diagnostic Mode 04 - Erase DTC Memory
- Diagnostic Mode 06 - Read Test Results For Specific Diagnostic Functions
- Notes
- Monitor-ID 01: Oxygen Sensor Monitor Bank 1 - Sensor 1
- Monitor-ID 02: Oxygen Sensor Monitor Bank 1- Sensor 2
- Monitor-ID 03: Oxygen Sensor Monitor Bank 1- Sensor 3 (CBUA/SULEV only)
- Monitor-ID 21: Oxygen Storage Content of Catalyst
- Monitor-ID 35: Variable Valve Timing Monitor
- Monitor-ID 3B: Fuel Tank EVAP System Integrity/Leak Test (0.40)
- Monitor-ID 3C: Fuel Tank EVAP System Integrity/Small Leak Test (0.20)
- Monitor-ID 3D: EVAP Purge Flow Monitor
- Monitor-ID 41: Oxygen Sensor Heater Monitor Bank 1 - Sensor 1
- Monitor-ID 42: Oxygen Sensor Heater Monitor Bank 1 - Sensor 2
- Monitor-ID 43: Oxygen Sensor Heater Monitor Bank 1 - Sensor 3 (CBUA/SULEV only)
- Monitor-ID 71: Secondary Air Monitor (CBUA/SULEV only)
- Monitor-ID A2:
- Monitor-ID A3: Mis-Fire Cylinder 2 Data
- Monitor-ID A4: Mis-Fire Cylinder 3 Data
- Monitor-ID A5: Mis-Fire Cylinder 4 Data
- Monitor-ID A6: Mis-Fire Cylinder 5 Data
- Diagnostic Mode 07 - Read Faults Detected During The Current Or Last Driving Cycle
- Diagnostic Mode 08 - Request Control Of On-Board System, Test Or Component
- Diagnostic Mode 09 - Read Vehicle Information
- DTC Tables
- Diagnostic Procedures
- Fuel Pump Voltage Supply, Checking
- Fuel Pump Pressure, Checking
- Fuel Pump Delivery Rate, Checking
- EVAP System, Checking For Leaks
- EVAP Purge Regulator Valve, Checking
- Leak Detection Pump, Checking (Model Year 2009 - 2010 Only)
- Leak Detection Pump, Checking (Model Year 2011 >)
- Accelerator Pedal Position Sensor 1/Accelerator Pedal Position Sensor 2, Checking
- Throttle Valve Control Module, Checking
- Oxygen Sensor Before Catalytic Converter, Checking
- Oxygen Sensor Before Catalytic Converter, Checking Heater
- Oxygen Sensor In Center Catalytic Converter, Checking (CBUA Only)
- Oxygen Sensor Heater In Center Catalytic Converter, Checking
- Oxygen Sensor After Catalytic Converter, Checking
- Oxygen Sensor After Catalytic Converter, Checking Heater
- Manifold Absolute Pressure Sensor, Checking
- Engine Coolant Temperature Sensor 1 Or 2, Checking
- Ambient Air Temperature Sensor, Checking
- Intake Air Temperature Sensor, Checking
- Engine Speed Sensor, Checking (2009 - 2010)
- Engine Speed Sensor, Checking (2011 >)
- Fuel Injectors, Checking
- ECM Voltage Supply, Checking
- Catalytic Converter, Checking
- Secondary Air Injection Combination Valve, Checking
- Secondary Air Injection Pump Motor, Checking
- Secondary Air Injection Pump Relay, Checking
- Secondary Air Injection Solenoid Valve, Checking
- Secondary Air Injection Sensor 1, Checking
- Camshaft Position Sensor, Checking
- Camshaft Adjustment Valve, Checking
- Knock Sensor, Checking
- Ignition Coil With Power Output Stage, Checking
- Speed Signal, Checking
- Can Bus Terminal Resistance, Checking
- Can-Bus Terminal Resistance, Transmission Control Module To Engine Control Module, Checking
Factory Service Tools
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When to See a Mechanic
Stop DIY work and contact a certified mechanic immediately if any of the following apply:
- • You smell fuel, burning insulation, or see smoke.
- • Brakes feel soft, pull hard to one side, or make grinding noises.
- • The engine overheats, stalls repeatedly, or misfires under load.
- • You are missing required tools, torque specs, or safe lifting equipment.
- • You are not confident in the next step or safety outcome.
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