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.
On Board Diagnostic (OBD) - Radio, Navigation, Steering & Telematics
2004 Audi A6 BaseSECTION On Board Diagnostic (OBD) - Radio, Navigation, Steering & Telematics
- Radio, On Board Diagnostic (OBD)
- General information
- Radio On Board Diagnostic (OBD), initiating
- Safety precautions
- Control Module Versions, checking (function 01)
- Diagnostic Trouble Code (DTC) Memory, checking (function 02)
- Diagnostic Trouble Code (DTC) table
- Output Diagnostic Test Mode (DTM) (function 03)
- Diagnostic Trouble Code (DTC) Memory, erasing (function 05)
- End Output (function 06)
- Code Control Module (function 07)
- Read Measuring Value Block (function 08)
- Read Measuring Value Block, initiating
- Summary of display groups - through m.y. 2001
- Summary of display groups - from m.y. 2002
- Display Group Tables
- Notes
- Display group 001 - through m.y. 2001
- Display group 001 - from m.y. 2002
- Display group 002 - through m.y. 2001
- Display group 002 - from m.y. 2002
- Display group 003
- Display group 004 - through m.y. 2001
- Display group 004 - from m.y. 2002
- Display group 005 - through m.y. 2001
- Display group 005 - from m.y. 2002
- Display group 006 - through m.y. 2001
- Display group 007 - through m.y. 2001
- Adaptation (function 10)
- Navigation system III (NS-Low) through m.y. 2001, On Board Diagnostic (OBD)
- General information
- Navigation system III On Board Diagnostic (OBD), initiating
- Safety precautions
- Control Module Versions, checking (function 01)
- Diagnostic Trouble Code (DTC) Memory, checking (function 02)
- Diagnostic Trouble Code (DTC) table
- Output Diagnostic Test Mode (DTM) (function 03)
- Diagnostic Trouble Code (DTC) Memory, erasing (function 05)
- End Output (function 06)
- Read Measuring Value Block (function 08)
- Function status register
- Adaptation (function 10)
- Navigation system IV (BNS 4.0) from m.y. 2002, On Board Diagnostic (OBD)
- General information
- Navigation system IV On Board Diagnostic (OBD), initiating
- Safety precautions
- Control Module Versions, checking (function 01)
- Diagnostic Trouble Code (DTC) Memory, checking (function 02)
- Diagnostic Trouble Code (DTC) table
- Output Diagnostic Test Mode (DTM) (function 03)
- Diagnostic Trouble Code (DTC) Memory, erasing (function 05)
- End Output (function 06)
- Read Measuring Value Block (function 08)
- Function status register
- Adaptation (function 10)
- Notes
- Adaptation, initiating
- Adaptation table:
- Tire circumference, adapting
- Impulse number/wheel rotation (GALA), checking
- Production diagnostic function (function status register), enabling/disabling
- Speaker connection, adapting
- Country selection, adapting
- Dynamic route guidance (where applicable), adapting
- Multi-function steering wheel, On Board Diagnostic (OBD)
- General information
- Multi-function steering wheel On Board Diagnostic (OBD), initiating
- Safety precautions
- Control Module Versions, checking (function 01)
- Diagnostic Trouble Code (DTC) Memory, checking (function 02)
- Diagnostic Trouble Code (DTC) table
- Output Diagnostic Test Mode (DTM) (function 03)
- Diagnostic Trouble Code (DTC) Memory, erasing (function 05)
- End Output (function 06)
- Code Control Module (function 07)
- Read Measuring Value Block (function 08)
- Telematics, On Board Diagnostic (OBD)
- General information
- Telematics On Board Diagnostic (OBD), initiating
- Safety precautions
- Control Module Versions, checking (function 01)
- Diagnostic Trouble Code (DTC) Memory, checking (function 02)
- Diagnostic Trouble Code (DTC) Table
- Output Diagnostic Test Mode (DTM) (function 03)
- Diagnostic Trouble Code (DTC) Memory, erasing (function 05)
- End Output (function 06)
- Code Control Module (function 07)
- Read Measuring Value Block (function 08)
- Read Measuring Value Block, initiating
- Display group overview:
- Display group 001
- Display group 002
- Display group 003
- Display group 004
- Display group 005
- Display group 020
- Display group 021
- Display group 022
- Display group 023
- Display group 024
- Display group 025
- Display group 026
- Display group 027
- Display group 028
- Display group 029
- Display group 030
- Display group 078
- Display group 079
- Display group 080
- Display group 125
- Display group 126
- Adaptation (function 10)
- Notes
- Adaptation (function 10), initiating
- Adaptation table:
- Transport Mode, activating/deactivating
- Example: Deactivate Transport Mode
- Emergency (back-up) battery, switch on/off, reset time register
- Emergency (back-up) battery adaptation examples:
- Example: Switch off emergency (back-up) battery
- Example: Switch on emergency (back-up) battery
- Example: Reset emergency (back-up) battery time register
- VAS 5051 tester or VAG 1551/1552 Scan Tool (ST), connecting
RENDER: 1.0x
NO RELATED
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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.