Manufacturer-specific communication code — definition not reliably documented
The U2419 code means the vehicle's onboard diagnostic system has detected: Manufacturer-specific communication code — definition not reliably documented. This is a low severity code.
- Keep driving?
- Yes, but fix soon
- DIY difficulty
- hard
- Estimated cost
- Varies — depends on the specific component this manufacturer-specific code points to on your vehicle. Diagnose before buying parts.
Manufacturer-specific code. U2419 is a manufacturer-specific DTC, so its exact definition can differ by make, model, and year. Use the meaning above as a general guide, and always confirm it against your vehicle manufacturer's official service information (or a make-specific scan tool) before diagnosing or replacing parts.
Network codes mean modules are not communicating. You need a scanner that reads all systems to find the problem.
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Common Symptoms
- Check Engine or a related warning light on
- Exact symptoms depend on the specific system this code covers for your make
- A make-specific scan reveals which subsystem and circuit is involved
Probable Causes (Ranked by Likelihood)
- A fault in the specific component or circuit this code monitors (the exact part varies by manufacturer) High
- Damaged wiring, a corroded connector, or a poor ground in that circuit Moderate
- A related sensor or control module reporting or causing the fault Moderate
Step-by-Step Diagnostic Procedure
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Confirm your exact make, model, and year first — U2419 is manufacturer-specific and can mean different things across brands.
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Read U2419 with an enhanced/make-specific scan tool and check your manufacturer's official service information for the precise definition and procedure.
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Inspect the wiring, connectors, and grounds for the indicated circuit before replacing any part.
Common Fixes by Vehicle
What techs usually find when diagnosing U2419 on specific vehicles — tap your vehicle for the fix and the exact part:
2005-2013 Ford Fusion/Edge/Escape Advanced DIY
U2419 CAN bus communication code on Ford is often a module pulling the bus low -- disconnect modules one at a time (ABS, cluster, radio) and see which one clears the code. Check for water damage at the BCM in the left kick panel from blocked cowl drains. Ford's MS-CAN vs HS-CAN topology means shorts between networks can masquerade as U2419.
Labor: 2-4 hours2007-2015 Chevrolet Equinox/Traverse Advanced DIY
GM crossovers set U2419 when a module drops communication on the high-speed CAN bus. The most common culprit is the radio/infotainment head unit shorting the bus; pull fuse for the radio and see if U2419 clears. If so, reseat or replace the infotainment module.
Labor: 2-3 hours2006-2014 Chrysler/Dodge/Jeep (TIPM vehicles) Advanced DIY
On Mopar products U2419 usually traces to the TIPM (Totally Integrated Power Module) under the hood. TIPMs are notorious failures (TSB 08-065-12). Symptoms include dead battery overnight, random ABS/airbag lights, and U-series codes. Replacement requires reprogramming with WiTech or AlfaOBD -- budget $400-800 installed.
Labor: 2-3 hoursFrequently Asked Questions
Does U2419 mean the same thing on every vehicle?
No. U2419 is a manufacturer-specific diagnostic trouble code, so its exact meaning varies by make, model, and year. Always confirm it against your vehicle manufacturer's service information before diagnosing or replacing parts.
What does U2419 most likely indicate?
Manufacturer-specific communication code — definition not reliably documented. Treat this as a general guide and verify the specifics for your vehicle.
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