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Diagnostic knowledge / Changan [BMS] Cell voltage delta — Enhanced PID
Changan / Enhanced diagnostic signal

[BMS] Cell voltage delta

Difference between battery-cell voltage readings, expressed in millivolts. Calculated from the equivalent cell-voltage inputs within this exact profile; both input readings must be available.

Decoder availability

Derived decoder available in the signed v82 pack. Android and iOS native replay passed with synthetic inputs; actual readings require the exact vehicle profile and all input signals. Physical vehicle validation has not been performed.

Signal definition and scope

Brand context
Changan
Display unit
mV
Signal kind
derived signal
Source signal reference
16280208, 16330146
Short label
Cell delta
Library state
Calculated signal; requires input readings; vehicle response not established
Source revisions
legacy-owner-2026-10-31-v82-pid-dependency

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-1081dc0a82edb46040343938 · 1 profiles · runtime-ready-derived-signal

Difference between battery-cell voltage readings, expressed in millivolts. Calculated from the equivalent cell-voltage inputs within this exact profile; both input readings must be available.

Original source label: [BMS] Cell voltage delta

Derived decoder available in the signed v82 pack. Android and iOS native replay passed with synthetic inputs; actual readings require the exact vehicle profile and all input signals. Physical vehicle validation has not been performed.

pid-adbbe5ac354327399a5e9fd1 · 1 profiles · runtime-ready-derived-signal
Source and applicability

OBD Lens production library legacy-owner-2026-11-02-v84-evidence. 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-2026-11-02-v84-evidence. Sources and scope