Engine Speed (Rpm)

The value indicates engine speed. The Transmission Control Module (TCM) obtains the value from the Engine Control Module (ECM) via CAN. The Transmission Control Module (TCM) compares the signal with its own engine speed sensor signal.

Measurement range: 0 - 8 191 RPM

Idling speed: 850 RPM

The value regards the actual engine speed. The Engine Control Module (ECM) calculates the speed using signals from the directly connected engine speed (RPM) sensor.

Measurement range: 0 - 10 400 RPM.

Normal value: 850 ± 50 RPM with hot engine.

HINT: Idle speed varies depending on the Engine Coolant Temperature (ECT).