Tesla Model S Not Charging
Tesla Model S 'reduced acceleration' message
Tesla Model S 'vehicle will not drive' message
Tesla Model S with multiple warning messages
The following fault code(s) may be present
BMS-f123 internal isolation
BMS-w090 btw message latency
BMS-w123 internal isolation
Got a problem with your Tesla Model S not charging?
Don't ignore it. Book an initial inspection today and get expert help.
Parts Repaired or Replaced
- BMS board
Affected Vehicles
Tesla Model S
- Tesla Model S - Various models
Common Failure Symptoms
- Vehicle remains unresponsive when plugged in; no charge current detected
- Dashboard warnings such as “Service Required”, “Vehicle will not drive”, “Reduced acceleration” with the root issue being the vehicle not charging
- Fault codes pointing to internal isolation fault, GTW message latency and HV pack internal issues
- Inspection reveals blown micro-fuse in the BMS system and severely low HV system insulation
Tesla Model S Diagnostic Report
In this example of Tesla Model S not charging, the vehicle arrived with multiple warning messages and complete refusal to accept a charge. The technician team carried out full fault-code scans which revealed BMS-F123, BMS-W090 and BMS-W123 codes. Detailed serial-data logging showed HV insulation below safe levels and the 12 V battery measured only ~5 V (unable to support system start). Further inspection found a blown 10-amp micro-fuse in the BMS circuit. After replacing the fuse, the fault persisted, prompting full pack removal. Ultimately the root cause was found to be a faulty Battery Monitoring System (BMS) circuit board inside the HV battery pack.
Tesla Model S Repairs
The repair phase involved removing the high-voltage battery pack, replacing the defective BMS board and reinstating full unit integrity. The battery pack was reinstalled, insulation tests and commissioning checks completed, and the vehicle’s BMS re-programmed to integrate with the rest of the system. Once recharged and verified, the vehicle entered “Ready” mode, and charging functionality was restored.
Resolution
Following the intervention, the Tesla Model S not charging fault was resolved. The vehicle accepted charge as expected, no fault codes returned, the system went back to normal operation, and the car was returned to the customer in full working order.
Need Help?
Are you an independent garage, dealership, warranty, fleet or insurance business?
Specialist Support for EV & Hybrid Repairs
We partner directly with independent garages, dealerships, warranty and fleet providers, and insurance companies across the UK to resolve complex EV and hybrid vehicle issues.
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.
Our battery and component repair service includes:
- Nationwide collection and delivery
- Rapid turnaround times
- Comprehensive technical support
Let us help you keep your customers on the road, while enhancing the value and reputation of your services.
Click below to find out how we can support you.
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:
- Nationwide collection and delivery
- Transparent, honest assessments
- Specialist repairs backed by technical expertise
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.
Click below to find out how we can support you.
Do LKQ Electriq 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.*
Lifetime Guarantee
All work carried out at LKQ Electriq 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.
0 Comments