18057 Data Bus Powertrain: Missing Message from ABS Control Module
The ECU has logged a fault on 18057. The definition below is the exact wording the standard uses for this code.
Can you drive it? This affects a system that helps you stop or stay straight. Assume ABS and stability control are reduced or switched off until it is fixed.
The definition
18057: Data Bus Powertrain: Missing Message from ABS Control Module.
The same fault, the other numbering
The same fault carries two numbers:
- OBD-II P-code equivalent:
P1649
What to check first
Cheapest and fastest checks first:
- Read the freeze-frame data stored with the fault - engine speed, load and temperature at the moment it logged tell you whether this happens cold, hot or under load.
- Check the connector at the part for corrosion, and that it is fully seated.
- Clear the code and see whether it returns, and under what conditions.
Reading the code is the easy part
A code names the circuit that complained. What tells you why is watching the sensor behind it while the engine runs — and that is where a code reader stops and a diagnostic tool starts.
VAGPULSE reads every module in a VW, Audi, Skoda or SEAT — not just the engine — shows the live measuring blocks behind this fault, gives you the freeze-frame conditions it was logged under, and clears it once you have fixed it. It also does what a generic OBD reader cannot on a VAG: service resets, coding, adaptations, and Stage 1–3 flashing with your original file saved first.
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Prefer to work on your phone? The VAGPULSE Android app is a free download and its demo mode runs against a sample car with no hardware at all, so you can see exactly what it reads before spending anything. Reading your car with it needs the VAGPULSE cable, which comes with the licence.
Common questions
What does 18057 mean?
18057 means Data Bus Powertrain: Missing Message from ABS Control Module. It is logged when the ECU sees this circuit outside its expected operating window.
Can I drive with 18057?
This affects a system that helps you stop or stay straight. Assume ABS and stability control are reduced or switched off until it is fixed.