1. Home
  2. /
  3. Complete List of OBD2...
  4. /
  5. P0319 Code – What...

P0319 Code – What Does It Mean & How To Fix It

This is one of the most frequent OBD2 trouble codes. Read the full article below to know what it means, how to fix it, and what other codes may show related to it.


Understanding Diagnostic Trouble Codes (DTC) is essential for maintaining your vehicle’s health. One of these codes, which can be found on your vehicle’s diagnostics system, is P0319. We will look at the definition, meaning, cause, symptoms, diagnosis, common errors, and possible correction of P0319 throughout this detailed guide. I’ll start by finding out what P0319 means.


To fully grasp P0319, let’s break down its meaning:

  • “P” stands for Powertrain, indicating that the issue affects the engine and transmission.

  • “0” denotes a generic code that applies to all vehicle makes and models.

  • “3” specifies that it’s a misfire code.

  • “19” identifies the specific issue, which is related to the signal circuit of the Rough Road Sensor A.

In essence, P0319 informs you that there’s a problem with the signal circuit of the Rough Road Sensor A in your vehicle.


Let’s now investigate the typical causes of P0319:

  • Rough Road Sensor A Malfunctioning: The sensor may be misbehaving, sending false signals, or not functional at all.
  • Wiring Issues: Damaged or corroded wiring in the circuit connecting the sensor to the engine control module can disrupt the signal.
  • Sensor connection issues: Signal problems may result from faulty connections at the sensor or control module.


P0319-related problems can show themselves in many different ways, including:

  • Check Engine Light: The check engine light on your dashboard turning on is the most typical sign.
  • Rough Running: over occasion, especially while traveling over uneven or bumpy roads, you can notice that the car runs rough.
  • Reduced Performance: The signal problem may prevent the engine from operating at its best.


A methodical diagnostic approach is essential when dealing with a P0319 error code:

  • Code Scan: Start by retrieving the code and learning its specifics using an OBD-II scanner.
  • Visual Inspection: Look for damage or loose connections in the wiring and connectors connected to the Rough Road Sensor A.
  • Sensor Testing: Test the Rough Road Sensor A itself to ensure it is functioning correctly and sending accurate signals.

Common mistakes

Some frequent errors to prevent while diagnosing and fixing P0319 include:

  • Neglecting normal maintenance, such as failing to inspect sensor connections at the appropriate service intervals.
  • Replacing components without doing enough testing could result in time and financial waste.
  • Ignoring similar errors or problems, since signal faults may be tied to other sensor issues.

How serious is this?

Several factors, such as the cause and scope of the signal problems, affect the seriousness of a P0319 code. While not usually an immediate emergency, a lack of this code can result in reduced vehicle performance and potential problems with its stability control system, particularly on hard roads. To prevent any further problems, prompt diagnosis and correction are recommended.

What repairs can fix the codeS?

repair manuals

The repairs needed to address P0319 will depend on the specific cause but may include:

  • Replacing a faulty Rough Road Sensor A.
  • Repairing or replacing damaged wiring or connectors in the sensor circuit.
  • Ensuring proper connections between the sensor and control module.

Related codes

P0319 may be associated with other related codes, such as:

  • P0315: “Crankshaft Position System Variation Not Learned.” This code may appear if the signal issue affects the vehicle’s ability to learn the crankshaft position.


The Rough Road Sensor A’s signal circuit may have a malfunction, according to diagnostic issue number P0319. For this problem to be resolved successfully, it is essential to comprehend its meaning, causes, symptoms, and diagnostic procedure. Your vehicle’s performance and stability may be maintained with timely diagnostics and suitable repairs. A trained mechanic should be consulted if you have a P0319 code to guarantee an accurate diagnosis and fix that keeps your car operating normally on all sorts of roads.

P0319 Code – What Does It Mean & How To Fix It