Clock parameters
The Porsche Taycan has 2 clock parameters.
● Confirmed◆ In testing○ Supported× Not supported
Time since engine start RUNTMSAE J1979Confirmed
Increments while the engine is running. Freezes if the engine stalls. Resets to zero during every control module power-up and when entering the key-on, engine off position. Limited to 65,535 seconds and will not wrap around to zero.
- Request
01 1F - Service 01
PID 1F - Module
7E0 → 7E8 - Every
1 s
Bits 0 to 15 of the reply, 16 bits.
- Formula
val- Range
- 0 to 65535 s
- Unit
- s
Confirmed for 2021 to 2022, 2025. Supported for 2020, 2023 to 2024.
Time since engine start TAYCAN_RUNTMConfirmed
How long it's been since the engine started.
- Request
22 F4 1F - Service 22
DID F41F - Module
7E0 → 7E8 - Every
1 s - Testing for 2026
Example reply from a 2025 Porsche Taycan.
Bits 0 to 15 of the reply, 16 bits.
0x004B = 75 → 75 s
- Formula
val- Range
- 0 to 65535 s
- Unit
- s
Confirmed for 2020 to 2025. In testing for 2026.