C1A13 on Jaguar: How to Diagnose & Fix
ABS/Stability Control Communication Fault
1 Jaguar model · 1 documented issue · 1 critical · $1,000-$3,000 repair
C1A13 on Jaguar by model: symptoms, diagnosis and fix
The Dunlop or Hitachi air suspension compressor on the XJ fails due to overwork from leaking air springs or aging valve blocks. The compressor runs continuously, overheats, and eventually burns out. This is one of the most common and expensive repairs on the XJ.
Common Symptoms
- Vehicle sitting low on one or all corners
- Suspension fault warning on dashboard
- Compressor running audibly and continuously
- Unable to change ride height
- Bouncy ride quality
How to Fix
Replace the air suspension compressor. Inspect all four air springs for leaks and replace any that are cracked or deflated. Check the valve block for internal leaks. Consider an Arnott or AMK aftermarket compressor for improved reliability.
What you need to fix it
Only diagnosis- and fitment-reviewed repair parts are linked here.
- Arnott P-3299 air-suspension compressor for X350/X358OEMP-3299
Confirmed weak/open/overcurrent compressor on a leak-corrected 2004-2009 XJ X350/X358 Fitment/availability: Arnott P-3299 is exclusively listed for 2004-2009 XJ X350/X358 and includes bracket, intake hose, connector and dryer.
- Arnott P-3244 air-suspension compressor for X351OEMP-3244
Confirmed weak/open/overcurrent compressor on a leak-corrected 2010-2019 XJ X351 Fitment/availability: Arnott P-3244 is designed specifically for 2010-2019 Jaguar XJ/XJR/XJR575 X351 applications. Confirm VIN and OE interchange, repair le…
As an Amazon Associate, we earn from qualifying purchases; other part links may also earn au7o a commission. Confirm fitment by VIN before buying.
C1A13 code reference
General diagnostic-code context. The code alone does not confirm a cause for your vehicle; use the applicable issue card and its sources.
Frequently asked questions
What does C1A13 mean on a Jaguar?
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 Jaguar it is documented across 1 model: XJ.
What are the most common causes of C1A13?
The most common causes of C1A13 are: 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. The specific cause varies by vehicle.
How much does it cost to fix C1A13 on a Jaguar?
Published repair estimates on Jaguar range from $1,000 to $3,000 depending on the model and root cause. If an issue mentions a recall or campaign, check your VIN with the manufacturer or NHTSA and confirm eligibility and coverage with a dealer.
Looking for C1A13 on a different make?
View C1A13 across all makes →Content compiled with AI assistance using NHTSA complaints, TSBs, and owner reports. May contain errors. Always verify with your vehicle's service manual.