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U0621

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.

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Manufacturer wording

Source wording can vary by vehicle and suffix. It is shown as written, not as a universal diagnosis.

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Bentley U062100

Lost communication with exhaust gas temperature sensor bank 1 sensor 1

NHTSA 10227159 ↗

Manufacturer communications

2

Original wording in English

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2065698.2 ↗

BENTLEY

V8 Kovomo - Emission Control Warning Illuminated within the DIP - Exhaust Gas Temperature Sensor DTCs evident Workshop Findings: -U061F00: Lost communication with exhaust gas temperature sensor bank 1 sensor 1 -U062100: Lost communication with exhaust gas temperature sensor bank 1 sensor 1

2065698/1 ↗

BENTLEY

V8 Kovomo - Emission control warning illuminated within the DIP - Exhaust Gas Temperature Sensor DTC's evident. Customer statement: Emission control system warning lamp illuminated (Figure 1) within the Driver Information Panel (DIP) Workshop findings: U061F00: Lost Communication With Exhaust Gas Temperature Sensor Bank 1 Sensor…

Check vehicle applicability

12

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

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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.