What does fault code SRS-021B mean?

Diagnostic fault code details for SRS-021B (Volvo S60 (2001–2009), Volvo S80 (1999–2006), Volvo V70 (2000–2008)). Repair service at OBD Tuning.

VOLVO

SRS-021B - Front left front impact sensor. Internal fault

System

Supplemental Restraint System (SRS)

Volvo models this fault code applies to

Applies to the following models:

5 models

S60 (2001–2009), S80 (1999–2006), V70 (2000–2008), V70 XC / XC70 (2001–2007), XC90 (2003–)

Show models by year and engine (5)

What does this fault code mean?

The front left impact sensor has an internal fault according to the supplemental restraint system. If the fault remains, a workshop needs to replace the sensor.

Possible causes

Internal fault in the front left impact sensor

What you can do

1Have a workshop visually check the connector to the front left impact sensor for loose or corroded contacts
2Clear the code and see if it comes back
3If the fault remains, have a workshop replace the front left impact sensor
4Do not work on the airbag system yourself; have a workshop check it

Symptoms you may notice1

The SRS warning lamp is on

General guidance for car owners. Diagnosis on the car can point to a different cause.