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U1642

Code meaning and manufacturer information

OBD-II / DTC

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 communications

6

Original wording in English

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AUDI

This TSB provides information when DTCs U142100 and U164200 are stored as passive/sporadic in the gateway.

AUDI

This TSB provides information when DTCs U142100 and U164200 are stored as passive/sporadic in the gateway.

AUDI

This bulletin provides information for when an SOS malfunction is displayed in the instrument cluster; DTCs U142100, U164200, and/or U122C00.

AUDI

This bulletin states that an SOS malfunction accompanied by DTCs U142100, U164200, and/or U122C100 my be stored erroneously and the ETCs should be cleared.

Check vehicle applicability

170

A listed vehicle is a research lead. Confirm the engine, production range and software in the manufacturer's information.

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MakeModelModel year
AudiA4 ↗2024
AudiA4 ↗2023
AudiA4 ↗2022
AudiA4 ↗2021
AudiA4 ↗2019
AudiA4 ALLROAD ↗2024
AudiA4 ALLROAD ↗2023
AudiA4 ALLROAD ↗2022

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.