MODE 01 · PID 0E

Timing advance

This generic signal reports timing advance relative to the reference used by the ECU. It is not a standalone instruction for adjusting ignition timing.

Formula
A / 2 − 64
Data bytes
1
Units
°

A worked decoding example

Request: 01 0E

Response: 41 0E 80

Data: 80 → 0 °

The example shows service, PID and data only. It omits adapter headers, CAN identifier, length and padding. It is not a live vehicle reading.

Reading context

Compare engine load, speed and temperature. Follow the vehicle-specific procedure before interpreting timing changes as a fault.

A decoded value is a measurement, not a diagnosis. Encoding limits are not normal operating limits. Confirm vehicle support and the manufacturer’s procedure.

Byte decoder

Your input stays in this browser.MODE 01

FormulaA / 2 − 64 → °

A decoded value is a measurement, not a diagnosis. Encoding limits are not normal operating limits. Confirm vehicle support and the manufacturer’s procedure.

Sources

  1. python-OBD: Mode 01 command table ↗
  2. python-OBD: byte decoding implementation ↗
  3. CSS Electronics: OBD-II PID and response frames ↗
  4. California BAR: OBD test reference ↗

Independent reference; no affiliation with SAE, vehicle manufacturers or regulators. Sources checked 28 October 2026.