Output shaft speed
Last reviewed 2026-08-31
Hybrid / PHEV specific
Description
Hybrid transaxle output shaft speed. Compare with vehicle speed to understand gear ratio and EV/ICE blend.
- Unit
- rpm
- Group
- hybrid_hv
Protocol requests
The same meaning can arrive through different mode + PID + ECU header combinations. Do not merge by hex number alone.
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H1 Output Shaft Speed 1942
Hybrid transaxle output shaft speed — useful with vehicle speed to see gear/blend behaviour. Documented for Chevrolet Volt / Opel Ampera (Voltec Gen1) via Torque/UDS. Requires UDS ECU address 7E1 — not a generic OBD broadcast.
UDS · mode 22 · PID 1942 · header 7E1 · primary
Source label: H1 Output Shaft Speed 1942
Platforms that list this signal
Sources
Provenance for this page. Official standards outrank community notes. See the confidence policy.
community · medium trust
OVMS Volt/Ampera Torque PID map (DD-labeled)
uds-22-1942-7E1