P0317
Fix within 1-2 weeksRough Road Sensor Not Available
Code P0317 means your engine computer isn't getting data from the rough road sensor. Common causes: Faulty rough road sensor (70%), wiring issues (25%). Drivability: Yes, safe to drive. Repair cost: $50-$200 DIY, $150-$500 professional.
Can I Drive With P0317?
Yes, safe to drive
No restrictions
Stop driving immediately if: Flashing Check Engine Light (indicating an active misfire), significant power loss, or any unusual engine noises.
Symptoms of P0317
- 1Check Engine Light is on
- 2No noticeable driving symptoms directly related to the sensor
- 3If actual misfires are occurring, the engine may run rough or hesitate (though the sensor isn't detecting them correctly)
Common Causes of P0317
Parts most likely causing this code, ranked by probability
The rough road sensor itself has failed and is not sending data to the engine computer.
70% of P0317 cases are fixed by replacing this part
Damaged wires or corroded connections prevent the rough road sensor's signal from reaching the engine computer.
25% of P0317 cases are fixed by repairing wiring or connectors
The engine computer has an internal fault preventing it from processing the rough road sensor's input.
5% of P0317 cases are fixed by replacing the PCM
Check These First (Before Buying Parts)
- Visually inspect the rough road sensor's wiring harness and connector for any obvious damage, fraying, or corrosion.
- Ensure the sensor's connector is fully seated and secure.
How to Diagnose P0317
- 1Connect an OBD-II scan tool to confirm P0317 is the only code present. Check for any related misfire codes (P0300-P0308).
- 2Visually inspect the rough road sensor and its wiring harness for any obvious damage, corrosion, or loose connections.
- 3Locate the rough road sensor (often under the dash, in the engine bay, or on the frame) and check its electrical connector for proper seating and clean terminals.
- 4If possible with your scan tool, check live data for the rough road sensor. Look for any activity or a complete lack of signal.
- 5Use a multimeter to test for proper voltage supply to the sensor and continuity in the signal wire back to the PCM.
- 6If the sensor has power and ground, and the wiring is good, test the sensor's output signal according to factory specifications (requires a service manual).
P0317 on Popular Vehicles
Toyota Camry
2007-2024P0317 on a Camry is typically a straightforward rough road sensor failure. The sensor is often located under the dash or near the firewall. Inspect the connector for corrosion.
75% fixed by replacing the rough road sensor
Honda Accord
2003-2024For Honda Accord, P0317 usually points to the rough road sensor itself. Wiring issues are less common but should still be checked, especially if the vehicle has been in an accident or had recent body work.
70% fixed by replacing the rough road sensor
Ford F-150
2004-2024On Ford F-150s, the rough road sensor can be exposed to road debris or moisture, leading to sensor failure or wiring damage. Check the sensor's mounting location, often on the frame, for physical damage.
65% fixed by replacing the rough road sensor
Frequently Asked Questions
What does P0317 mean?
P0317 indicates that your vehicle's engine computer (PCM) is not receiving a signal from the rough road sensor. This sensor helps the PCM differentiate between engine misfires and vibrations caused by driving on uneven roads.
Can I drive with P0317?
Yes, you can drive safely with P0317. This code does not directly affect engine performance or safety. However, the PCM's ability to accurately detect misfires is compromised, which can lead to other issues if actual misfires are ignored.
Will P0317 clear itself?
No, P0317 will not clear itself. The Check Engine Light will remain on until the underlying issue with the rough road sensor or its circuit is diagnosed and repaired. You will need to clear the code with a scan tool after the repair.
How do I fix P0317 myself?
To fix P0317 yourself, start by visually inspecting the rough road sensor and its wiring for damage. If the wiring looks good, you will likely need to replace the rough road sensor itself. Ensure all connections are clean and secure.
How much does it cost to fix P0317?
The cost to fix P0317 ranges from $50-$200 for DIY, primarily for the sensor part. Professional repair costs are $150-$500, covering parts and 1-2 hours of labor.
P0317 keeps coming back - why?
If P0317 keeps coming back, it indicates the initial repair did not address the root cause. This often means there is still a wiring issue, a faulty connection, or a less common problem with the engine computer itself.
Will P0317 fail emissions/smog test?
Yes, P0317 will cause your vehicle to fail an emissions or smog test. Any active Check Engine Light code means an automatic failure in states with such inspections.
What's the difference between P0317 and P0300?
P0317 means the rough road sensor is not communicating, which impairs the engine computer's ability to detect misfires. P0300 indicates a random or multiple cylinder misfire has actually occurred. P0317 can prevent the PCM from accurately setting P0300 or specific P030X codes.
P0317 on Ford F-150?
On a Ford F-150, P0317 points to the rough road sensor. This sensor is often located on the frame rail or under the dash. Check the wiring for rodent damage or corrosion, which is common on trucks exposed to harsh conditions.
Questions to Ask Your Mechanic
Did you check the rough road sensor's live data with a scan tool?
Good answer: Yes, I saw no signal or an erratic signal from the sensor, confirming it's not communicating.
What did you find when inspecting the wiring harness to the rough road sensor?
Good answer: I found the wiring intact with no signs of damage or corrosion, and confirmed continuity to the PCM.
Repair Cost Estimate
DIY Repair
Parts only
$50-$200
Shop Repair
Parts + labor
$150-$500
Save $100-$300 by doing it yourself
Difficulty
intermediate
Time
1-2 hours
Intermediate - requires basic hand tools, a multimeter for electrical checks, and potentially a scan tool to verify sensor data. Locating the sensor can be the most challenging part.
Cost of Waiting
Ignoring P0317 means your engine computer cannot accurately detect misfires. If actual misfires occur, they will go undiagnosed, potentially sending unburned fuel to your catalytic converter. A $50 sensor fix now prevents a $1,200-$2,500 catalytic converter replacement later.
While You're In There...
Cleaning electrical connectors can resolve intermittent issues and ensure a solid connection for the new sensor or existing wiring.
Tools You'll Need
- OBD-II Scan Tool
- Basic Socket Set
- Screwdriver Set
- Multimeter
- Wire Strippers/Crimpers (if wiring repair is needed)
P0317 is an electrical communication code, not a direct engine performance issue. The repair is usually straightforward, often just replacing a sensor, and your vehicle will be back to accurately monitoring engine health.
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Your Next Steps
Step 1: Perform a thorough visual inspection of the rough road sensor and its wiring. Look for cuts, pinches, or corrosion.
Step 2: If the visual inspection doesn't reveal any issues, use a multimeter to check for proper voltage supply to the sensor and continuity in the signal wire. If power is present and wiring is good, replace the rough road sensor.
Step 3: Parts you'll likely need: A new rough road sensor (accelerometer).