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-53 is stored if the engine control module (ECM) counts more than two teeth too few or too many on the carrier plate / flywheel for two consecutive crankshaft revolutions.
Substitute Value
None.
Possible Source
- Contact resistance in the terminals.
- Signal cable insulation damaged.
- Damaged carrier plate / drive plate.
- Defective engine speed (RPM) sensor.
Fault symptom[s]
- Engine running very jerkily.