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U01B0

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.

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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

5

Original wording in English

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VOLKSWAGEN

Customer states rattle from below the vehicle; Customer states coolant leak/coolant light on; Customer states MIL-on, P0442 stored in ECM memory; Customer states key FOB lock/unlock functions do not work via button press (not KESSY); Customer states the seat cover has discoloration (usually yellowing) stains; Customer states MIL…

VOLKSWAGEN

Customer states rattle from below the vehicle; Customer states coolant leak/coolant light on; Customer states MIL-on, P0442 stored in ECM memory; Customer states key FOB lock/unlock functions do not work via button press (not KESSY); Customer states seat belt won't retract; Customer states windshield has a visual imperfection, C…

VOLKSWAGEN

Customer states rattle from below the vehicle; Customer states MIL-on, P0442 stored in ECM memory; Customer states key FOB lock/unlock functions do not work via button press (not KESSY); Customer states seat belt won't retract; Customer states windshield has a visual imperfection, Customer states Electrical System Error Message,…

VOLKSWAGEN

Customer states rattle from below the vehicle; Customer states MIL-on, P0442 stored in ECM memory; Customer states key FOB lock/unlock functions do not work via button press (not KESSY); Customer states seat belt won't retract; Customer states windshield has a visual imperfection, Customer states Electrical System Error Message,…

Check vehicle applicability

60

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
BrightDropEV600 ↗2022
BuickENVISION ↗2022
BuickENVISION ↗2021
CadillacCT4 ↗2022
CadillacCT4 ↗2021
CadillacCT4 ↗2020
CadillacCT5 ↗2022
CadillacCT5 ↗2021

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.