C1A13 on Land Rover
ABS/Stability Control Communication Fault
C1A13 on Land Rover vehicles indicates abs/stability control communication fault. Au7o has documented this code across 2 Land Rover models — most commonly on Range Rover, Range Rover Sport. C1A13 is a brake-system communication code indicating a fault in the data exchange between the ABS and the stability control (ESC/VSC) function. These systems share wheel speed, yaw, steering, and brake data over the vehicle's network to coordinate ABS, traction, and stability control. When expected messages are missing, corrupted, or delayed, the module flags a communication fault and typically disables stability/traction features. It generally points to a network (CAN bus) problem, a non-responding module, or wiring/power issues rather than a single mechanical part. Base braking remains, but the safety-control functions may be offline. Typical repair costs on Land Rover range from $1,200 to $3,500, depending on the specific model and root cause.
Common Causes of C1A13
- •CAN bus / communication wiring fault between modules
- •Unresponsive or failed ABS or stability control module
- •Low or unstable battery/system voltage
- •Corroded, loose, or damaged module connectors
- •Poor power or ground connection at a control module
- •Related sensor faults (yaw, steering angle, wheel speed) breaking data plausibility
- •Software mismatch after a module replacement without programming
C1A13 on Land Rover by Model
Land Rover Range Rover(1 issue)
- Air Suspension Compressor Failure2003-2021
The Hitachi air suspension compressor is a well-known failure point on the Range Rover. The compressor runs excessively to compensate for leaking air springs, eventually overheating and burning out. Symptoms start with the vehicle sitting low overnight and progress to a complete inability to raise the suspension. The thermal fuse inside the compressor blows as a safety measure, requiring full compressor replacement.
Land Rover Range Rover Sport(1 issue)
- Air Suspension Compressor and Valve Block Failure2005-2022
The Range Rover Sport shares the same air suspension system as the Range Rover and suffers identical compressor and valve block failures. The compressor overworks due to air spring leaks and the valve block solenoids stick or leak internally. The Sport's lower ride height and sportier driving style can accelerate wear on the air suspension components.
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View C1A13 across all makes →Frequently Asked Questions
What does C1A13 mean on Land Rover?▼
C1A13 stands for "ABS/Stability Control Communication Fault." C1A13 is a brake-system communication code indicating a fault in the data exchange between the ABS and the stability control (ESC/VSC) function. These systems share wheel speed, yaw, steering, and brake data over the vehicle's network to coordinate ABS, traction, and stability control. When expected messages are missing, corrupted, or delayed, the module flags a communication fault and typically disables stability/traction features. It generally points to a network (CAN bus) problem, a non-responding module, or wiring/power issues rather than a single mechanical part. Base braking remains, but the safety-control functions may be offline. On Land Rover specifically, this code is documented across 2 models.
What causes C1A13 on Land Rover vehicles?▼
Common causes on Land Rover: CAN bus / communication wiring fault between modules, Unresponsive or failed ABS or stability control module, Low or unstable battery/system voltage, Corroded, loose, or damaged module connectors, Poor power or ground connection at a control module. Specific causes vary by model and year — see the per-model sections below.
How much does it cost to fix C1A13 on a Land Rover?▼
Repair costs on Land Rover range from $1,200 to $3,500, depending on the specific model and root cause.
Which Land Rover models have C1A13 documented?▼
Au7o has documented C1A13 on 2 Land Rover models: Range Rover, Range Rover Sport.