Motor-generator speed

Last reviewed 2026-08-31

Hybrid / PHEV specific

Description

Speed of the electric motor-generator (MG1/MG2). Not the same as Engine RPM: in EV mode MG can spin while ICE RPM is zero. Sign may indicate direction.

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.

• HV MG2 RPM / HV MG2 Torque

  Motor-generator speed (MG1 or MG2). Not Engine RPM: in EV mode MG can spin while ICE RPM is zero. Negative values may indicate direction. Documented for Toyota Prius Gen1 (NHW11) via Torque custom PIDs. Requires manufacturer ECU header 8416F1 — not a generic OBD broadcast.

  OBD · mode 01 · PID C2 · header 8416F1 · primary

  Source label: HV MG2 RPM

• HV MG1 RPM / HV MG1 Torque

  Motor-generator speed (MG1 or MG2). Not Engine RPM: in EV mode MG can spin while ICE RPM is zero. Negative values may indicate direction. Documented for Toyota Prius Gen1 (NHW11) via Torque custom PIDs. Requires manufacturer ECU header 8416F1 — not a generic OBD broadcast.

  OBD · mode 01 · PID C4 · header 8416F1 · alternate

  Source label: HV MG1 RPM