Range Rover Sport P400 (2020-2025)

Range Rover Sport P400 (2020-2025) hybrid system inoperative

The following fault code(s) may be present:

P0AA0-66 – HV/EV battery positive contactor circuit – signal has too many transitions/events (intermittent)
P0AA1 – Hybrid battery negative contactor circuit stuck closed
P0AA2 – Hybrid battery negative contactor circuit stuck open
P0AA3 – Hybrid battery negative contactor circuit high resistance
P0AA4 – Hybrid battery positive contactor circuit stuck closed
P0AA5 – Hybrid battery positive contactor circuit stuck open
P0AA6 – Hybrid battery voltage system isolation fault
P1A10 – Precharge time too long
P1A12 – Precharge capacitor fault
P0A95 – Battery pack voltage too low
P0A1F – Battery energy control module performance
B11DB-87 – Battery energy control module – Missing message or communication error
U0129 – Lost communication with brake control module
U1000 – Generic CAN communication fault
U3000 – Control module internal fault

Affected vehicles

Land Rover Range Rover Sport autobiography P400 dynamic PHEV

Land Rover Defender PHEV (P400e)

Range Rover Velar PHEV (P400e)

Common failure symptoms

Range Rover Sport autobiography dynamic diagnostics

Initial checks confirmed that the hybrid system had shut down. As a result, drive functionality was unavailable and the 12V system was inactive. Further diagnostic testing identified a fault within the high-voltage battery contactor circuit, which was causing intermittent signals and overall system failure.

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01952 585511

Range Rover Sport autobiography dynamic repairs

Our technicians identified the battery energy control module as the root cause of the issue. A quality-checked green part replacement unit was then sourced and installed. Following installation, full system commissioning and safety checks were completed.

The repair process included:

Resolution

All systems were successfully restored to operational status. The vehicle underwent full testing, and all recorded faults were cleared.

As a result:

Specialist support for EV and hybrid repairs

Are you an independent garage, dealership, warranty provider, fleet operator or insurance business?

EAC Electric works directly with independent garages, dealerships, warranty and fleet providers, and insurance companies across the UK to resolve complex electric and hybrid vehicle faults.

If your customer’s vehicle is displaying battery or electrical faults, we provide advanced diagnostics and specialist repair solutions that go beyond standard parts replacement.

Our battery and component repair service includes:

We can help you keep your customers on the road while enhancing the value, reliability and reputation of your services.

Is the vehicle owned by you or your business?

Have you been advised that the battery or component on your vehicle requires replacement?

Before committing to a costly full replacement, speak to EAC Electric. We specialise in inspecting, diagnosing and repairing complex battery and component faults, including issues that many main dealers are unable or unwilling to repair.

Our specialist repair service can restore your Range Rover’s hybrid battery at a fraction of the cost of replacement. We offer:

We have helped customers across Shropshire save thousands of pounds. Book a diagnostic assessment today to discover how we can help you return your vehicle to the road cost-effectively.

Do EAC electric repairs include a warranty?

High-Voltage System Repairs

Repairs involving high-voltage systems typically include a 12-month, unlimited mileage warranty, providing complete peace of mind.

Lifetime Guarantee

All work carried out by EAC Electric is supported by our lifetime workmanship guarantee.

Our team is passionate about supporting customers with professional advice and specialist technical expertise.

Whether you require diagnostics, repairs or simply guidance, please get in touch. We will be pleased to assist you.