P0A94 on Land Rover
DC/DC Converter Performance
P0A94 on Land Rover vehicles indicates dc/dc converter performance. Au7o has documented this code across 1 Land Rover model — most commonly on Range Rover Sport. This hybrid/electric vehicle code sets when the hybrid control system detects that the DC/DC converter is not performing within expected parameters. The DC/DC converter steps the high-voltage battery power down to the 12-volt level that runs the car's lights, accessories, and control modules, so a performance fault can affect the whole low-voltage system. Symptoms may include warning lights, reduced power, the hybrid system not starting, or a discharged 12-volt battery. Because high-voltage components are involved, diagnosis and repair should be done by a qualified hybrid technician. Typical repair costs on Land Rover range from $800 to $4,500, depending on the specific model and root cause.
Common Causes of P0A94
- •Faulty inverter/converter assembly (DC/DC converter)
- •Open or shorted wiring in the converter circuit
- •Poor electrical connection at the converter
- •Weak or failing 12-volt battery
- •High-voltage system or cooling fault affecting the converter
- •Software/control module calibration issue
- •Faulty hybrid control module (less common)
P0A94 on Land Rover by Model
Land Rover Range Rover Sport(1 issue)
- 48V Mild-Hybrid Battery / DC-DC Converter Fault Causing No-Start, Warning Messages, and Limp Mode2023-2025
Multiple owners of the L461 Range Rover Sport have reported repeated 48V system faults, often accompanied by 'Electrical system fault', 'Stop safely', charging warnings, or sudden no-start conditions. The issue appears tied to the 48V lithium-ion battery, battery energy control module, or DC-DC converter behavior in the new MLA-Flex electrical architecture, and in some cases the vehicle enters restricted performance mode or becomes immobilized. This is well documented in owner complaints and service actions affecting 2023-2024 vehicles and continues to appear in owner discussions for later builds.
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View P0A94 across all makes →Frequently Asked Questions
What does P0A94 mean on Land Rover?▼
P0A94 stands for "DC/DC Converter Performance." This hybrid/electric vehicle code sets when the hybrid control system detects that the DC/DC converter is not performing within expected parameters. The DC/DC converter steps the high-voltage battery power down to the 12-volt level that runs the car's lights, accessories, and control modules, so a performance fault can affect the whole low-voltage system. Symptoms may include warning lights, reduced power, the hybrid system not starting, or a discharged 12-volt battery. Because high-voltage components are involved, diagnosis and repair should be done by a qualified hybrid technician. On Land Rover specifically, this code is documented across 1 model.
What causes P0A94 on Land Rover vehicles?▼
Common causes on Land Rover: Faulty inverter/converter assembly (DC/DC converter), Open or shorted wiring in the converter circuit, Poor electrical connection at the converter, Weak or failing 12-volt battery, High-voltage system or cooling fault affecting the converter. Specific causes vary by model and year — see the per-model sections below.
How much does it cost to fix P0A94 on a Land Rover?▼
Repair costs on Land Rover range from $800 to $4,500, depending on the specific model and root cause.
Which Land Rover models have P0A94 documented?▼
Au7o has documented P0A94 on 1 Land Rover model: Range Rover Sport.