What Does P0317 Mean?
The PCM has determined that the rough road detection hardware is not present or not properly configured. Rough road sensing uses signals from wheel speed sensors or a dedicated accelerometer to distinguish between engine misfires and vibrations caused by rough road surfaces. Without this hardware, the misfire detection system may generate false misfire codes when driving on uneven roads.
Common Causes
35%
Incorrect PCM calibration or software not matching vehicle hardware configuration
25%
Missing or disconnected rough road sensor (accelerometer) that was removed or never installed
20%
ABS module not communicating rough road data to the PCM over the CAN bus
12%
Faulty wheel speed sensor(s) preventing the ABS module from providing rough road compensation data
8%
Aftermarket PCM or engine swap with mismatched software for the vehicle's hardware configuration
Diagnostic Steps
1
Verify the PCM calibration file matches the vehicle's build configuration — check the RPO label in the glove box or door jamb against the PCM's programmed VIN and calibration ID.
2
Check for communication between the ABS module and PCM using the scan tool's module communication list — verify all expected modules are present on the network.
3
Inspect the rough road sensor/accelerometer mounting location (typically on the chassis or near the rear axle) to verify it is present and connected.
4
Check for ABS-related DTCs that may indicate wheel speed sensor issues preventing rough road data from being generated.
5
If the PCM was recently replaced or reprogrammed, re-flash with the correct calibration and perform all required learn procedures.
Estimated Repair Cost
$100 - $500
Parts + labor, varies by vehicle and location
The PCM has determined that the rough road detection hardware is not present or not properly configured. Rough road sensing uses signals from wheel speed sensors or a dedicated accelerometer to distinguish between engine misfires and vibrations caused by rough road surfaces. Without this hardware, t...
The most common cause of P0317 (Rough Road Hardware Not Present) is: Incorrect PCM calibration or software not matching vehicle hardware configuration
Typical repair costs for P0317 range from $100 to $500, depending on the vehicle, location, and whether you do it yourself or go to a shop.
The vehicle is safe to drive. The primary consequence is that the misfire detection system may trigger false misfire codes when driving on rough roads. This can be annoying but does not pose a safety risk. Address it at your convenience to prevent nuisance codes.
Start by connecting an OBD2 scanner to read the code and any freeze frame data. Then follow the diagnostic steps specific to P0317 to identify the root cause.
OBDHut Mobile App
Scan codes directly from your car with the OBDHut app.
Coming Soon
Quick Info
Category
Powertrain
System
Engine Management / Misfire Detection
Difficulty
Type
Generic (SAE)
Recommended Tools
OBD2 Scanner
A quality scan tool helps you read codes, view live data, and clear faults.
