OBD-II code · Body

B0841 Right Rear Turn Signal Circuit

A fault has been detected in the right rear turn signal circuit.

Is it safe to drive with B0841?

Usually safe to drive in the short term. Get it diagnosed when convenient, sooner if the car drives differently.

Common causes

  • Most likelyBurnt out turn signal bulb

Symptoms

  • Warning light or symbol related to the affected system
  • Comfort or safety function impaired

Repair at a glance

Difficulty
Easy
DIY friendly
Often, with basic tools
Typical labour
0.2–1 h
Emissions test
Usually unaffected
Parts involved
Right Rear Turn Signal, Body Control Module

Code data: OBDex open dataset (CC0). Labour times are typical ranges, not a quote.