Engine reference torque

Last reviewed 2026-08-31

Mode 01 · PID 63 (decimal 99)

Description

Reference torque used to scale percent-torque PIDs into newton-metres.

PID number

63 · 99

Unit

N·m

Range

0 … 65535

Data bytes

2

Formula

(A*256)+B

• Also valid as Mode 02 freeze-frame data (same PID number, snapshot at last DTC).

Defined by SAE J1979 / ISO 15031-5. Public index — not a substitute for the paid SAE document.