Faulty left side impact sensor (pressure or acceleration type); Damaged wiring or poor connector contact between the sensor and the SRS control unit; Corroded or loose connector, often after water ingress in the door or B-pillar area; Previous accident or repair damage, or an incorrectly fitted or unsuitable replacement sensor; Wiring damage in the door hinge loom or seat area from repeated flexing; Fault inside the SRS control unit.

B0092

Left Side Restraints Sensor 2.

Generic
Body
Generic code
Medium severity

How this code is built

B: SystemBody
0: Defined bySAE, the same on every car
0: AreaBody area 0
92: FaultThe specific fault in that area

What it means

B0092 is the generic code for a fault on the left side restraints sensor 2, one of the side impact or crash sensors that feed the airbag (SRS) control unit. The control unit has detected a problem with this sensor or its circuit, such as an implausible signal, a communication error or an open or short circuit. The exact sensor position and fault type depend on the make and model, so check the vehicle-specific wiring information.

Symptoms

Airbag or SRS warning light on
Side airbag or seat belt pretensioner on the left may be disabled
Intermittent SRS light after closing a door or going over bumps
SRS self-test failure at ignition on
Other SRS codes stored alongside it

Possible causes

Faulty left side impact sensor (pressure or acceleration type)likely
Damaged wiring or poor connector contact between the sensor and the SRS control unitlikely
Corroded or loose connector, often after water ingress in the door or B-pillar areapossible
Previous accident or repair damage, or an incorrectly fitted or unsuitable replacement sensorpossible
Wiring damage in the door hinge loom or seat area from repeated flexingpossible
Fault inside the SRS control unitrare

How to diagnose

Scan all modules and record every SRS code, freeze frame and status (current, intermittent or history) before clearing anything
Check for recent accident repairs, door or trim work, or water leaks on the left side of the vehicle
Visually inspect the left sensor, its mounting and its connector for damage, corrosion, moisture and correct fitting
Check the wiring along the left side, especially the door hinge area, for chafing, pinching or previous repairs
Wait the time stated by the manufacturer after disconnecting the battery before touching any SRS connector, then check terminal tension and condition
Check the live sensor data, where available, for a plausible reading and see whether wiggling the harness changes it
Test circuit resistance and continuity using the vehicle-specific wiring diagram and approved procedures, without applying test power to airbag circuits
Clear the code and retest after the repair to confirm it does not return

How to fix

Repair or replace damaged wiring and connectors on the sensor circuit
Clean or replace corroded connectors and fix the source of any water ingress
Replace the faulty left side sensor with the correct part for the vehicle and fit it to the specified position and torque
Correct any incorrectly fitted sensor, bracket or trim that affects the sensor
Replace or repair the SRS control unit only after the sensor and wiring are confirmed good, following the manufacturer's procedure

Can I keep driving?

Medium severity

The car can usually be driven, but the left side airbag and related restraints may not work in a crash, so have it repaired as soon as possible. Avoid carrying passengers on the affected side where possible until it is fixed.

Guide written by AI from the code's definition. Confirm with a diagnosis before replacing parts.