B0102 on Kia
Electronic Side Sensor Malfunction
B0102 on Kia vehicles indicates electronic side sensor malfunction. Au7o has documented this code across 1 Kia model — most commonly on Optima. This body/safety code indicates a malfunction with an electronic crash sensor used by the airbag (SRS) system, typically a frontal or side impact sensor on one side of the vehicle. The airbag control module continuously checks these sensors so it can deploy airbags and tensioners correctly in a crash, and it sets this code when a sensor reports an incorrect identity, fails, or its circuit is faulty. The airbag warning light will usually be on. Because it can compromise crash protection, it should be diagnosed promptly.
Common Causes of B0102
- •Faulty electronic side/frontal impact sensor
- •Open, shorted, or damaged sensor wiring harness
- •Corroded or loose sensor connector
- •Wrong or incompatible replacement sensor installed
- •Damage from a prior collision or water intrusion
- •Poor ground or connection in the SRS circuit
- •Faulty airbag control module (less common)
B0102 on Kia by Model
Kia Optima(1 issue)
- Airbag Control Unit Electrical Overstress2011-2013
The Airbag Control Unit (ACU) may be susceptible to electrical overstress during certain front-end collisions. If this occurs, the front airbags and seatbelt pretensioners may not deploy as designed, significantly increasing the risk of injury. This issue prompted a major recall affecting over 500,000 Kia vehicles.
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View B0102 across all makes →Frequently Asked Questions
What does B0102 mean on Kia?▼
B0102 stands for "Electronic Side Sensor Malfunction." This body/safety code indicates a malfunction with an electronic crash sensor used by the airbag (SRS) system, typically a frontal or side impact sensor on one side of the vehicle. The airbag control module continuously checks these sensors so it can deploy airbags and tensioners correctly in a crash, and it sets this code when a sensor reports an incorrect identity, fails, or its circuit is faulty. The airbag warning light will usually be on. Because it can compromise crash protection, it should be diagnosed promptly. On Kia specifically, this code is documented across 1 model.
What causes B0102 on Kia vehicles?▼
Common causes on Kia: Faulty electronic side/frontal impact sensor, Open, shorted, or damaged sensor wiring harness, Corroded or loose sensor connector, Wrong or incompatible replacement sensor installed, Damage from a prior collision or water intrusion. Specific causes vary by model and year — see the per-model sections below.
How much does it cost to fix B0102 on a Kia?▼
Repair costs vary widely depending on the root cause and specific Kia model.
Which Kia models have B0102 documented?▼
Au7o has documented B0102 on 1 Kia model: Optima.