P0317
Rough Road Hardware Not Present
The PCM has been configured to use rough-road sensor input for misfire detection (to mask false positives on bumpy surfaces) but the expected hardware is not detected on the network. Typically a configuration mismatch after replacement.
- Check engine light: Yes
- Emissions related: Yes
- Repair difficulty: hard
Common causes
Ordered by how often each turns out to be the cause.
- PCM configuration does not match installed hardwareCommon
Parts involved
- Rough Road Sensor
- Powertrain Control Module
P0317 is a generic OBD-II code defined by SAE J2012. Exact wording and diagnostic procedure vary by manufacturer and model. Code definitions are drawn from the public-domain OBDex dataset; the workshop notes are our own.