U0421
Invalid data received from the ABS control module
- System
- Network - modules not talking to each other
This is a standard code. It means the same thing on every make of vehicle.
Related codes
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- U0401Invalid data received from the transmission control module
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- U0405Invalid data received from the fuel injector control module
- U0406Invalid data received from the glow plug control module
- U0407Invalid data received from the throttle actuator control module