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Kia / Enhanced diagnostic signal

[ECM] Knock retard cylinder # 4

“[ECM] Knock retard cylinder # 4” is the enhanced diagnostic signal label recorded for the linked vehicle profiles. Values are labeled in °. The label and scope should be checked against the vehicle’s service information before interpreting a reading.

Signal definition and scope

Brand context
Kia
Display unit
°
Signal kind
decoded signal
Source signal reference
10985008, 11035009, 11040011, 11045009, 11170008, 11310011, 13865021, 14195026
Short label
Kn. ret. #4
Library state
Decoded definition available; vehicle response not established
Source revisions
legacy-owner-2026-10-02-v59

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?

8 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-69fa01a5b35a634573dab1d3 · 2 profiles · runtime-ready
pid-7a2f0e5054401443b23b0a60 · 2 profiles · runtime-ready
pid-b51180329c402606423f8dee · 3 profiles · runtime-ready
pid-edab538f8a4fe1273721d33b · 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