C1A54 on Land Rover
Manufacturer-Specific EPS/Steering Control Circuit Fault
C1A54 on Land Rover vehicles indicates manufacturer-specific eps/steering control circuit fault. Au7o has documented this code across 1 Land Rover model — most commonly on Range Rover Evoque. C1A54 is an obscure manufacturer-specific chassis code, most commonly seen in the Electric Power Steering family of trouble codes. It generally indicates a circuit or signal fault within the steering control system that the power steering ECU detected as out of specification. Because the exact meaning is defined by the individual vehicle maker, a conservative interpretation is that it points to a steering-system sensor, motor, or wiring problem. Reduced or intermittent steering assist is the typical symptom.
Common Causes of C1A54
- •Wiring or connector fault in the EPS circuit
- •Faulty steering sensor (angle/torque)
- •EPS motor or control module fault
- •Low or unstable supply voltage to the steering ECU
- •Poor ground connection
- •Module software/calibration issue
C1A54 on Land Rover by Model
Land Rover Range Rover Evoque(1 issue)
- Haldex AWD Coupling Failure2012-2019
JLR communications document loss of AWD or a two-wheel-drive-only warning on specified 2012-2016 Evoque vehicles from coupling-oil-pump brush faults, control-module configuration damage or other Active Driveline causes. Later guidance addresses low-speed noise or judder. The records support the coupling-failure identity, but not a universal fluid interval, degraded-fluid cause, controller failure, seizure or the frozen U0300/C1A54 attribution.
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View C1A54 across all makes →Frequently Asked Questions
What does C1A54 mean on Land Rover?▼
C1A54 stands for "Manufacturer-Specific EPS/Steering Control Circuit Fault." C1A54 is an obscure manufacturer-specific chassis code, most commonly seen in the Electric Power Steering family of trouble codes. It generally indicates a circuit or signal fault within the steering control system that the power steering ECU detected as out of specification. Because the exact meaning is defined by the individual vehicle maker, a conservative interpretation is that it points to a steering-system sensor, motor, or wiring problem. Reduced or intermittent steering assist is the typical symptom. On Land Rover specifically, this code is documented across 1 model.
What causes C1A54 on Land Rover vehicles?▼
Common causes on Land Rover: Wiring or connector fault in the EPS circuit, Faulty steering sensor (angle/torque), EPS motor or control module fault, Low or unstable supply voltage to the steering ECU, Poor ground connection. Specific causes vary by model and year — see the per-model sections below.
How much does it cost to fix C1A54 on a Land Rover?▼
Repair costs vary widely depending on the root cause and specific Land Rover model.
Which Land Rover models have C1A54 documented?▼
Au7o has documented C1A54 on 1 Land Rover model: Range Rover Evoque.