Immobilizer Antenna Ring Circuit
2017-2025 Renault Kwid 1.0L I3 SCe Flex 🇩🇪
Description
Malfunction in the immobilizer antenna ring (transponder receiver coil) around the ignition lock cylinder or start button.
Symptoms
- Intermittent no-start
- Security light on
- Key sometimes not recognized
- Works with key held in specific position
Common Causes
- Faulty antenna ring coil
- Wiring damage from steering column work
- Connector loose
- Coil winding open or shorted
Diagnostic Steps
- Measure antenna ring resistance
- Inspect connector at steering column
- Check wiring from antenna to immobilizer module
- Test with oscilloscope for signal
Repair Notes
Replace immobilizer antenna ring. Ensure connector is fully seated after steering column work.
Related Codes
Other Body Codes
- B0001Driver Frontal Stage 1 Deployment Control
- B0002Driver Frontal Stage 2 Deployment Control
- B0003Passenger Frontal Stage 1 Deployment Control
- B0004Passenger Frontal Stage 2 Deployment Control
- B0005Driver Knee Airbag Deployment Circuit
- B0006Passenger Knee Airbag Deployment Circuit
- B0007Rear Left Side Airbag Deployment Circuit
- B0008Rear Right Side Airbag Deployment Circuit
- B0009Rear Center Airbag Deployment Circuit
- B0010Driver Side Airbag Deployment
B0103 on Other Vehicles
Renault Arkana
2021-2024 1.3L I4 TCe
Renault Arkana
2021-2024 1.6L Hybrid
Renault Arkana
2021-2025 1.3L I4 TCe 140
Renault Arkana
2021-2025 1.6L I4 Hybrid E-Tech 145
Renault Arkana FR
2021-2025 1.3L I4 Turbo TCe 140
Renault Arkana FR
2021-2025 1.6L I4 Hybrid E-Tech 145
Renault Austral
2022-2025 1.2L I3 Hybrid E-Tech
Renault Austral
2022-2025 1.3L I4 TCe 140
Common Questions
What does code B0103 mean on a 2017-2025 Renault Kwid?
B0103 stands for "Immobilizer Antenna Ring Circuit". Malfunction in the immobilizer antenna ring (transponder receiver coil) around the ignition lock cylinder or start button.
What are the symptoms of B0103 on a Renault Kwid?
Common symptoms of B0103 include: Intermittent no-start, Security light on, Key sometimes not recognized, Works with key held in specific position.
What causes B0103 on a 2017-2025 Renault Kwid?
Common causes of B0103 include: Faulty antenna ring coil, Wiring damage from steering column work, Connector loose, Coil winding open or shorted.