BMW i4 M50 Not Starting (2022-2025) & No Dash Lights or Warnings
Is your BMW i4 M50 not starting?
Don’t ignore it – book a diagnostic today and get expert help.
The following fault code(s) may be present
930994 – Safety Battery Terminal: Resistance Too High
S0386 – Communication Not Possible with Instrument Cluster
21F44F – High Voltage Battery Unit (SME): Pyrotechnic Safety Switch Faulty
21F37E – Impact Detection: Crash Detected via ACSM Signal
CE17A5 – No Message: Receiver EME, Transmitter Kombi
Affected Vehicles
BMW i4 eDrive40
- BMW i4 eDrive40 2022
- BMW i4 eDrive40 2023
- BMW i4 eDrive40 2024
- BMW i4 eDrive40 2025
BMW i4 M50
- BMW i4 M50 2022
- BMW i4 M50 2023
- BMW i4 M50 2024
- BMW i4 M50 2025
BMW iX xDrive40
- BMW iX xDrive40 2022
- BMW iX xDrive40 2023
- BMW iX xDrive40 2024
- BMW iX xDrive40 2025
BMW iX xDrive50
- BMW iX xDrive50 2022
- BMW iX xDrive50 2023
- BMW iX xDrive50 2024
- BMW iX xDrive50 2025
BMW iX3
- BMW iX3 2021
- BMW iX3 2022
- BMW iX3 2023
- BMW iX3 2024
- BMW iX3 2025
BMW 5 Series G30 LCI PHEV
- BMW 5 Series G30 LCI PHEV 2021
- BMW 5 Series G30 LCI PHEV 2022
- BMW 5 Series G30 LCI PHEV 2023
- BMW 5 Series G30 LCI PHEV 2024
- BMW 5 Series G30 LCI PHEV 2025
BMW X5 xDrive45e
- BMW X5 xDrive45e 2020
- BMW X5 xDrive45e 2021
- BMW X5 xDrive45e 2022
- BMW X5 xDrive45e 2023
- BMW X5 xDrive45e 2024
- BMW X5 xDrive45e 2025
Common Failure Symptoms
- No start/no drive
- No dash warning lights
- Kombi ECU – no display
- Fault codes for HV battery/pyrotechnic switch
- High resistance at battery terminal
- Crash detected by ACSM
- No communication between Kombi and other modules
- HV battery won’t recommission
Have you got a fault code on your BMW i4 M50?
Don’t ignore it – book a diagnostic today and get expert help.
BMW i4 M50 Diagnostics Report
BMW i4 M50 Repairs
- Firstly, Kombi ECU replaced
- Then, HV battery safety components (incl. pyrotechnic switch) serviced
- Finally, battery disconnected and recommissioned
Resolution
- High-voltage system fully operational
- Instrument cluster display restored
- No start condition resolved
Need Help?
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If your customer’s vehicle is displaying battery or electrical faults, we offer advanced diagnostics and expert repair solutions that go far beyond simple parts replacement.
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Is the vehicle owned by you or your business?
Have you been advised the battery or component needs replacing on your vehicle?
Before committing to a costly full replacement, talk to us. At LKQ Electriq, we specialise in inspecting, diagnosing and repairing complex battery and component faults (issues that many main dealers won’t touch).
Our expert repair service can restore your Range Rover’s hybrid battery at a fraction of the cost of replacement. We offer:
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We’ve helped customers across the country save thousands. Book a diagnostic today and discover how we can help you get back on the road, without breaking the bank.
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Do Cedar Electric repairs have a warranty?
High Voltage System Repairs
Repairs involving high voltage systems typically include a 12-month, unlimited mileage warranty, offering you complete peace of mind.*
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All work carried out at Cedar Garage is backed by our lifetime workmanship guarantee.
*Terms and conditions apply. Please consult a Service Advisor to confirm the specific warranty details for your vehicle prior to booking.
Hi I have bought a non starter and non runner i5. Is this something you can work on?
Hi. Yes this is something we could work on. Could you please contact us on 01903 924872 or email info@cedarelectric.co.uk and one of our team members will be able to assist you further