C1044 on Volkswagen: How to Diagnose & Fix
Manufacturer-Specific Chassis/ABS Code (commonly Right Rear Tone Wheel/Wheel-Speed Performance)
1 Volkswagen model · 1 documented issue · 1 critical · $500-$2,000 repair
C1044 on Volkswagen by model: symptoms, diagnosis and fix
The ABS hydraulic module and pump assembly fails, triggering ABS, traction control, and stability control warning lights. The module is expensive and mounted in a location prone to moisture intrusion. Can cause complete loss of ABS function.
Common Symptoms
- ABS warning light on
- Traction control light on
- ESP light on
- ABS not functioning
- Pump motor running constantly
How to Fix
Replace or rebuild the ABS module. Rebuilt units are available at lower cost. The system requires bleeding with a diagnostic tool (VCDS or VW scan tool) after replacement.
Sources for this issue (2)
C1044 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 C1044 mean on a Volkswagen?
C1044 stands for "Manufacturer-Specific Chassis/ABS Code (commonly Right Rear Tone Wheel/Wheel-Speed Performance)." C1044 is a manufacturer-specific chassis trouble code, so its exact meaning varies by maker. On many vehicles it relates to an ABS/stability-control wheel-speed input problem (for example, a right rear tone wheel or wheel-speed sensor signal that the control module judges to be abnormal or out of range), while some makes use it for a stability-control solenoid or VVT-related check. When set, it typically disables or limits ABS and traction/stability control and turns on the related warning lights. Confirm the exact definition for your specific make and model with a capable scan tool or the factory service manual before replacing parts. On Volkswagen it is documented across 1 model: Touareg.
What are the most common causes of C1044?
The most common causes of C1044 are: Damaged or corroded wheel speed sensor, Damaged tone ring / reluctor wheel (chipped or rusty teeth), Excessive sensor air gap or debris on the sensor, Wiring or connector damage in the sensor circuit, ABS/stability control module fault, Manufacturer-specific solenoid or control component fault. The specific cause varies by vehicle.
How much does it cost to fix C1044 on a Volkswagen?
Published repair estimates on Volkswagen range from $500 to $2,000 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.
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Content compiled with AI assistance using NHTSA complaints, TSBs, and owner reports. May contain errors. Always verify with your vehicle's service manual.