U0418 on 2022-2024 Ford Maverick — Invalid Data Received From Brake System Control Module 'A'
1 vehicles · 1 makes
Most Reported On
U0418 is an OBD-II diagnostic trouble code meaning “Invalid Data Received From Brake System Control Module 'A'.” This network code means a control module received data from the Brake System Control Module (typically the ABS/electronic stability module) that failed its validity or plausibility checks. The modules in your car constantly exchange information over a communication bus, and the receiving module decided the brake module's messages were corrupt, out of range, or implausible. Because it touches the ABS and stability control system, this can disable those safety features, so it should be diagnosed promptly. This code is most commonly reported on 2022-2024 Ford Maverick.
Common Causes
Diagnostic Tools
This is a network/communication code. A basic engine-code reader will not show it — you need a scanner that reads all modules. These read U0418.
One caveat that applies to every scanner: only powertrain codes are standardised across manufacturers. Body, chassis and network coverage is "enhanced" diagnostics, and how deep it goes varies by make and model year — check your specific vehicle against the tool's coverage list before buying.
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Shop-level tablet with all-system coverage and bi-directional control, so you can command a module rather than only read it.
- All-system diagnostics (25+ modules)
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- Oil reset, EPB, BMS, TPMS, injector coding
- 7-inch touchscreen with Android OS
What you can do yourself, and what needs a shop
Reading the code, clearing it, and watching whether it returns is a driveway job with the right scanner. These steps are not:
- Module programming or software updates — needs the manufacturer software or a J2534 pass-through with a paid subscription.
- Replacing a control module — most are VIN-programmed and immobilizer-registered, so a new one does nothing until it is coded to your car.
- Airbag/SRS component work — a stored fault can deploy a live device.
If the vehicle is still under warranty, check for an open recall or technical service bulletin before buying anything — the repair may already be covered.
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FAQ
What does U0418 mean?
U0418 stands for "Invalid Data Received From Brake System Control Module 'A'." This network code means a control module received data from the Brake System Control Module (typically the ABS/electronic stability module) that failed its validity or plausibility checks. The modules in your car constantly exchange information over a communication bus, and the receiving module decided the brake module's messages were corrupt, out of range, or implausible. Because it touches the ABS and stability control system, this can disable those safety features, so it should be diagnosed promptly.
What are the most common causes of U0418?
The most common causes of U0418 are: Low or unstable battery/system voltage (common on stop-start vehicles), Faulty ABS / brake control module or its software needing an update, Corroded or loose connector at the brake module harness, Damaged CAN bus wiring (chafed, pinched, or shorted high/low pair), Poor or high-resistance ground at the module, Water intrusion or corrosion in connectors, Module reprogramming or configuration error. The specific cause varies by vehicle.
How much does it cost to fix U0418?
Repair costs vary widely depending on the root cause and vehicle.
Which vehicles are affected by U0418?
Au7o has documented U0418 across 1 vehicle models from 1 manufacturers: Ford.
Content compiled with AI assistance using NHTSA complaints, TSBs, and owner reports. May contain errors. Always verify with your vehicle's service manual.