Dialogue with the Stop and Start ECU : Value received incorrect
PSA · network
Data confidence72%
The control module detected that the value received for the Dialogue with the Stop and Start ECU over the network was incorrect. Documented for the Magneti Marelli MM6KP engine ECU (EW7A/EW10A) on Peugeot applications; the same PSA control units are also fitted to Citroën models.
Manufacturer-defined range: the meaning can differ between brands.
203
Specific fault index within the subsystem.
Frequently asked questions about U1203
What does U1203 mean?
Dialogue with the Stop and Start ECU : Value received incorrect. The control module detected that the value received for the Dialogue with the Stop and Start ECU over the network was incorrect. Documented for the Magneti Marelli MM6KP engine ECU (EW7A/EW10A) on Peugeot applications; the same PSA control units are also fitted to Citroën models.
Is U1203 generic or manufacturer-specific?
U1203 is a manufacturer-specific code. In this database it is documented for: PSA. The same number can mean something different on other brands.
Can TuningBot remove U1203 at file level?
Not guaranteed. Powertrain (P) codes can be reliably disabled in the ECU calibration, but body, chassis and network codes depend on the specific control unit and how the fault is implemented - some can be handled, some cannot. Ask for a quote and our engineers will check your file and tell you, free of charge, whether U1203 is removable in your case.
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