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Body

B1803

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 communications

4

Original wording in English

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37571.6.0 ↗

VOLVO

This is a TJ Text only no attachments - This TJ is a complement to the fault tracing in VIDA. If customer complains of intermittent DIM message in combination with DTC HCML/R - B180292/B180392, follow advice under "Service".Pay attention to which side of the car the DTC refers, both headlamps should not be replaced by default.

37571.5.0 ↗

VOLVO

This is a TJ Text only no attachments - This TJ is a complement to the fault tracing in VIDA. If customer complains of intermittent DIM message in combination with DTC HCML/R - B180292/B180392, follow advice under "Service".Pay attention to which side of the car the DTC refers, both headlamps should not be replaced by default.

37571 ↗

VOLVO

This is a TJ Text only no attachments - If customer complains of intermittent DIM message in combination with DTC HCML/R - B180292/B180392, follow advice under "Service".

37571 ↗

VOLVO

This is a TJ Text only no attachments - If customer complains of intermittent DIM message in combination with DTC HCML/R - B180292/B180392, follow advice under "Service".

Check vehicle applicability

1

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
VolvoEX90 ↗2025

Code meaning and manufacturer information

Original wording in English · Historical directory labels; manufacturer applicability has not been established for every entry.

Lamp Turn Signal Rear Output Circuit Open

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.