P1694Invalid request from the engine computer to the immobilizer
- Hyundai/Kia code · Engine
- How the car detects it
- The immobilizer (SMARTRA) checks the chip in the key before the engine computer allows a start. The communication line between the engine computer and the SMARTRA unit carried an invalid request. Applies to cars with an immobilizer.
- What you may notice
- Possible no-start
- Likely causes
- PossibleWiring between engine computer and SMARTRA
- RareEngine computer
- Sources
- manuals.autorepairshq.com › General Information
- blog.upfix.com › hyundai-factory-dtc-code-definitions
Backed by at least two independent sources.
From Obdaryn's Hyundai/Kia pack, exactly as the app shows it, with the public sources above. Guidance only; confirm with a workshop.