HV battery block resistance

Last reviewed 2026-08-31

Hybrid / PHEV specific

Description

Per-block internal resistance inside the HV pack. Used in Toyota-style battery health checks — higher values can indicate aging cells.

Unit

mOhm

Group

hybrid_hv

Protocol requests

The same meaning can arrive through different mode + PID + ECU header combinations. Do not merge by hex number alone.

• Bat Battery Block 1 Resistance / Bat Battery Block 2 Resistance / Bat Battery Block 3 Resistance / Bat Battery Block 4 Resistance

  Internal resistance of an HV battery block. Used in battery health checks on Toyota-style packs. Documented for Toyota Prius Gen1 (NHW11) via Torque custom PIDs. Requires manufacturer ECU header 84D5F1 — not a generic OBD broadcast.

  OBD · mode 01 · PID CA · header 84D5F1 · primary

  Source label: Bat Battery Block 1 Resistance

• Bat Battery Block 5 Resistance / Bat Battery Block 6 Resistance / Bat Battery Block 7 Resistance / Bat Battery Block 8 Resistance

  Internal resistance of an HV battery block. Used in battery health checks on Toyota-style packs. Documented for Toyota Prius Gen1 (NHW11) via Torque custom PIDs. Requires manufacturer ECU header 84D5F1 — not a generic OBD broadcast.

  OBD · mode 01 · PID CB · header 84D5F1 · alternate

  Source label: Bat Battery Block 5 Resistance

• Bat Battery Block 10 Resistance / Bat Battery Block 11 Resistance / Bat Battery Block 12 Resistance / Bat Battery Block 9 Resistance

  Internal resistance of an HV battery block. Used in battery health checks on Toyota-style packs. Documented for Toyota Prius Gen1 (NHW11) via Torque custom PIDs. Requires manufacturer ECU header 84D5F1 — not a generic OBD broadcast.

  OBD · mode 01 · PID CC · header 84D5F1 · alternate

  Source label: Bat Battery Block 10 Resistance

• Bat Battery Block 13 Resistance / Bat Battery Block 14 Resistance / Bat Battery Block 15 Resistance / Bat Battery Block 16 Resistance

  Internal resistance of an HV battery block. Used in battery health checks on Toyota-style packs. Documented for Toyota Prius Gen1 (NHW11) via Torque custom PIDs. Requires manufacturer ECU header 84D5F1 — not a generic OBD broadcast.

  OBD · mode 01 · PID CD · header 84D5F1 · alternate

  Source label: Bat Battery Block 13 Resistance

• Bat Battery Block 17 Resistance / Bat Battery Block 18 Resistance / Bat Battery Block 19 Resistance

  Internal resistance of an HV battery block. Used in battery health checks on Toyota-style packs. Documented for Toyota Prius Gen1 (NHW11) via Torque custom PIDs. Requires manufacturer ECU header 84D5F1 — not a generic OBD broadcast.

  OBD · mode 01 · PID CE · header 84D5F1 · alternate

  Source label: Bat Battery Block 17 Resistance