[ECM] Electric Thermostat Duty Ratio

Signal definition and scope

Brand context

Toyota

Display unit

%

Signal kind

numeric

Source signal reference

12360129, 16590558, 16660056

Short label

[ECM] Electric Thermostat Duty Ratio

Library state

Decoded definition available; vehicle response not established

Source revisions

legacy-owner-2026-10-09-v81

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?

3 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.

• Corolla Hybrid 2020-, RAV4 Hybrid 2019-, Camry Hybrid 2018-, Avalon Hybrid 2019-Toyota · 2018–onward
• WWH-OBD HEV/PHEV (CAN 29 bit) (2026-n.d.)Toyota · 2026–onward
• WWH-OBD ICE (CAN 29 bit) (2026-n.d.)Toyota · 2026–onward

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.

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.