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.
Affected components
- Rough road sensor
- Powertrain control module
Common causes
- High likelihood: PCM configuration does not match installed hardware
Diagnostic notes
- The malfunction indicator lamp may illuminate
- This code can affect emissions
Sources
Diagnostic information is provided for reference only. Confirm the code with a compatible scan tool and follow the vehicle manufacturer's service procedures before replacing components.