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.
Manufacturer communications
6Original wording in English
AUDI
Reported code forms B146C29
This bulletin provides information when there is a functional issue with switching of lights in the rear lid. DTC B146C29.
AUDI
Reported code forms B146C29
This bulletin contains repair instructions regarding when the rear lights do not switch from bumper to hatchgate after closing with DTC B146C29.
AUDI
Reported code forms B146C29
This bulletin contains repair instructions regarding when the rear lights do not switch from bumper to hatchgate after closing with DTC B146C29.
AUDI
Reported code forms B146C29
This bulletin contains repair instructions regarding when the rear lights do not switch from bumper to hatchgate after closing with DTC B146C29.
AUDI
Reported code forms B146C29
This bulletin contains instructions regarding when the rear lights do not switch from bumper to hatchgate after closing with DTC B146C29.
SATURN
Reported code forms B146C
SATURN: DIAGNOSING REAR LIGHTS INOPERATIVE. IN RARE CASES, CUSTOMERS MAY COMMENT OF A MESSAGE ON THE DIC TO CHECK THE REAR LIGHTS, OR COMPLAIN OF THE REAR LIGHTS ON THE VEHICLE ARE INOPERATIVE. FURTHER INVESTIGATION MAY…
Check vehicle applicability
40A listed vehicle is a research lead. Confirm the engine, production range and software in the manufacturer's information.
| Make | Model | Model year |
|---|---|---|
| Audi | AUDI | Year not specified |
| Audi | Q5 | 2025 |
| Audi | Q5 | 2024 |
| Audi | Q5 | 2023 |
| Audi | Q5 | 2022 |
| Audi | Q5 | 2021 |
| Audi | Q5 | 2020 |
| Audi | Q5 | 2019 |
| Audi | Q5 | 2018 |
| Audi | Q5 E | 2025 |
| Audi | Q5 E | 2024 |
| Audi | Q5 PHEV | 2023 |
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.
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.