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.
2012 Audi A8 BaseFACTORY OEM SERVICE PROCEDURE
4.2L - Generic Scan Tool - Engine Code: CDRA (1 Of 2)
- St Generic Scan Tool
- General Information
- Description And Operation
- Diagnosis And Testing
- Preliminary Check
- Readiness Code
- Diagnostic Modes 01 - 0A
- 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 05 - Read Oxygen Sensor Monitoring Test Results
- Diagnostic Mode 06 - Read Test Results For Specific Diagnostic Functions
- Notes
- Monitor-ID 01 ($01) : Oxygen Sensor Monitor Bank 1 - Sensor 1
- Monitor-ID 02 $(02) : Oxygen Sensor Monitor Bank 1- Sensor 2
- Monitor-ID 05 ($05) : Oxygen Sensor Monitor Bank 2 - Sensor 1
- Monitor-ID 06 ($06) : Oxygen Sensor Monitor Bank 2 - Sensor 2
- Monitor-ID $21 (33) : Catalytic Converter Monitoring Bank 1
- Monitor-ID $22 (34) : Catalytic Converter Monitoring Bank 2
- Monitor-ID $35 (53) : Cam shaft adjustment / IVVT-Diagnose Bank 1
- Monitor-ID $36 (54) : Cam shaft adjustment / IVVT-Diagnose Bank 2
- Monitor-ID $3C (60) : Fuel Tank EVAP System Integrity/Leak Test (0.20/0.5mm)
- Monitor-ID $3D (61) : EVAP Valve Function Check
- Monitor-ID 65 ($41): Oxygen Sensor Heater Monitor Bank 1 - Sensor 1
- Monitor-ID 66 ($42): Oxygen Sensor Heater Monitor Bank 1 - Sensor 2
- Monitor-ID 69 ($45): Oxygen Sensor Heater Monitor Bank 2 - Sensor 1
- Monitor-ID 70 ($46): Oxygen Sensor Heater Monitor Bank 2 - Sensor 2
- Monitor-ID 113 ($71): Secondary Air System Bank 1
- Monitor-ID 114 ($72): Secondary Air System Bank 2
- Monitor-ID $A2 (162) : Mis-Fire Cylinder 1 Data
- Monitor-ID $A3 (163) : Mis-Fire Cylinder 2 Data
- Monitor-ID $A4 (164) : Mis-Fire Cylinder 3 Data
- Monitor-ID $A5 (165): Mis-Fire Cylinder 4 Data
- Monitor-ID $A6 (166): Mis-Fire Cylinder 5 Data
- Monitor-ID $A7 (167): Mis-Fire Cylinder 6 Data
- Monitor-ID $A8 (168): Mis-Fire Cylinder 7 Data
- Monitor-ID $A9 (169): Mis-Fire Cylinder 8 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
- Diagnostic Mode 0A - Check Permanent DTC Memory
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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