OBD LensOBD Lens App
Diagnostic knowledge / Citroen [ECM] Engine RPM — Enhanced PID
Citroen / Enhanced diagnostic signal

[ECM] Engine RPM

Engine speed is the rotational speed reported for the engine, expressed in revolutions per minute. The reading is not a GPS measurement or a fault conclusion.

Signal definition and scope

Brand context
Citroen
Display unit
rpm
Signal kind
numeric
Source signal reference
14375000, 15255001
Short label
[ECM] Engine RPM
Library state
Decoded definition available; vehicle response not established
Source revisions
legacy-owner-2026-10-09-v81

Enhanced or private PID means a manufacturer-specific signal reference. It does not mean a paid PID. Request commands and decoding formulas are not needed to read this explanation and are not published here.

Which vehicle profiles list this signal?

2 connection profiles list this signal concept. Check the definition variants below for the exact profile relationships; matching display names do not make request or decoder variants interchangeable.

How should I interpret a value?

Use the exact vehicle profile and confirm the returned module and unit. An unavailable response is not zero. This reference does not supply a universal normal range or infer a failed component.

Inspect a recorded signal

Definition variants and exact profile relationships

Entries sharing a label and unit can use different requests or decoders. The following variants are retained separately; they are not interchangeable.

pid-7cc01ed7c5f7ad8f1ec9f03a · 1 profiles · runtime-ready
pid-84aca9e9ed556ae87aab0191 · 1 profiles · runtime-ready
Source and applicability

OBD Lens production library legacy-owner-2026-10-09-v81. This is a scoped technical reference, not a scan of your car. A catalog relationship does not certify that every ECU, year or engine returns the same signal or code definition.

Read the reference method

OBD Lens reference library · catalog legacy-owner-2026-10-09-v81. Sources and scope