Range Rover Evoque P300e (2020-2026) Hybrid won’t enter high‑voltage mode
Do you have a Range Rover Evoque that won’t enter high-voltage mode?
Don’t ignore it – book a diagnostic today and get expert help.
EML (engine management) light illuminated
Vehicle would not enter high-voltage (HV) mode
The following fault code(s) may be present
P0A7F – Hybrid battery pack deterioration
P0AA6 – HV isolation fault
P0A80 – Replace hybrid battery pack
P0AFA – Battery pack voltage imbalance / cell voltage too high/low
Affected Vehicles
Range Rover Evoque (Hybrid)
- Range Rover Evoque P300e 2020
- Range Rover Evoque P300e 2021
- Range Rover Evoque P300e 2022
- Range Rover Evoque P300e 2023
- Range Rover Evoque P300e 2024
- Range Rover Evoque P300e 2025
- Range Rover Evoque P300e 2026
Common Failure Symptoms
- EML light present
- HV battery deterioration fault(s) recorded
- Vehicle fails to enter HV mode despite no active HV faults after repair
Do you have a Range Rover Evoque that won’t enter high-voltage mode?
Don’t ignore it – book a diagnostic today and get expert help.
Range Rover Evoque Diagnostic Report
Initial diagnostic checks indicated an HV battery deterioration issue, with a measured pack delta which was outside of acceptable levels, and displaying clear module imbalance. The HV battery was then replaced and the HV-related faults were cleared, but the vehicle still would not enter high-voltage mode. Further investigation identified a secondary 12V battery issue that was preventing the system from fully clearing related faults and operating correctly.
- Pack delta measured outside acceptable limits, with module imbalance present
- HV battery replaced and HV faults cleared
- Secondary 12V battery issue identified as the blocker to HV mode
Range Rover Evoque Repairs
First, the HV battery was replaced to address the deterioration/imbalance reported by the vehicle.
Next, once HV faults were cleared but the vehicle still would not enter HV mode, the 12V battery was tested and confirmed as requiring replacement.
Finally, the 12V battery was replaced and the vehicle was road tested extensively under load to confirm stable operation.
- Replaced HV battery to resolve deterioration/imbalance concerns.
- Replaced 12V battery to clear secondary faults and restore HV operation.
- Completed extensive road testing to validate repair under real driving conditions.
Resolution
Following replacement of the HV battery and, critically, the 12V battery, the vehicle returned to normal hybrid operation with no recurring high‑voltage faults observed during extended validation.
- Vehicle entered and operated correctly in hybrid modes.
- HV faults did not reoccur following repair and road testing.
- Vehicle performance was confirmed under load and across varied driving conditions.
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
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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 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.*
Lifetime Guarantee
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.
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