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Home › Volvo › 2014 › XC90 3.2 R-Design, FWD › Repair and Diagnosis › Engine Performance › Engine Control Systems › Ignition And Engine Control Systems - Specifications, Other › Vehicle Communication Information, Engine Control Module (ECM) (B5254T2; 2005-2007) › Description Of Detailed Diagnostic Trouble Code Information Readout › Description Of Frozen Values › Engine Speed (Rpm)

Engine Speed (Rpm)

The engine control module (ECM) calculates engine speed from the impulse sensor signal.

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