Diagnostic trouble code (DTC) information
WARNING: This page is about a different car, the 2004 Volvo S40, 2003 Volvo S40, 2002 Volvo S40, 2001 Volvo S40, and 2000 Volvo S40. However, it is still accessible from the selected car via links, so may be relevant.
Condition
Diagnostic trouble code (DTC) ECM-43 is stored if the engine control module (ECM) detects an internal fault with knock control.
Substitute Value
- Ignition retardation
- No knock adaptation
- Initial boost pressure.
Possible Source
- Defective engine control module (ECM).
Fault symptom[s]
- Deterioration in performance
- High fuel consumption.