Reference meaning
What does this code mean?
The wording below belongs to the named make and communication. Match the complete code, reporting module, model year and engine before applying it.
A code identifies a detected condition, not a part that must automatically be replaced.
Narrow by vehicle
A listed vehicle is a research lead. Confirm the engine, production range and software in the manufacturer's information.
Before replacing a part
Record codes and freeze-frame data. Check battery condition, related codes and visible wiring or hose damage. Follow the vehicle's diagnostic procedure and test results before replacing parts.
Scan worksheet →Manufacturer wording
Source wording can vary by vehicle and suffix. It is shown as written, not as a universal diagnosis.
B126CF2Navigation system navigation database not enabled
Manufacturer communications
7Original wording in English
AUDI
This bulletin provides information on reinstalling the navigation database when DTC B126CF0 and/or B126CF1 is stored in the 005F.
AUDI
This bulletin contains instructions to reinstall the navigation database in the presence of DTC B126CF1 stored in the 005F.
AUDI
This bulletin provides instructions for when a customer states that after an over-the-air navigation map update the navigation system is permanently initializing or the navigation map is incomplete or corrupt and DTC B126CF0 and/or B126CF1 may be stored in the electronics control module.
AUDI
This bulletin contains instructions for when the MMI shows the message "Read error occurred when accessing the navigation data" after initialization and reboots constantly with DTC B126CF0 and/or B126CF1.
Check vehicle applicability
210A listed vehicle is a research lead. Confirm the engine, production range and software in the manufacturer's information.
Can I keep driving?
A code alone cannot establish whether driving is safe. A flashing malfunction light, severe shaking, overheating, oil-pressure warning or loss of braking or steering needs prompt attention. Stop in a safe place and seek assistance when control or engine safety is affected. Follow the vehicle handbook.