U0418
UNetworkInvalid Data Received From Brake Control Module
What does this code mean?
Severity : MediumU0418 means a module has received invalid data from the brake system control module (ABS or ESC). Communication is present, but the information sent is implausible or out of range. Functions that rely on this data, such as traction control, may be disabled.
Symptoms
- Check engine, ABS or stability light on.
- Cruise control or traction control unavailable.
- Erratic speedometer on some vehicles.
- Other communication codes may be stored.
Possible causes
- Internal fault or active code in the brake module.
- Faulty wheel speed sensor sending wrong values.
- Low or unstable battery voltage.
- Damaged CAN bus wiring or connector.
- Outdated or incorrectly configured module software.
Diagnosis and repair
- Read brake module codes and deal with them first.
- Check battery voltage and grounds.
- Check wheel speed sensors in live data.
- Inspect network wiring and module connectors.
- Check for manufacturer software updates, clear the code and road test.
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Code
U0418
Category
Network
Prefix
U
Standard
OBD-II / SAE J2012