P0319 Fault Code

Rough Road Sensor B Signal Circuit

• What does that mean?
• Symptoms
• Causes
• Solutions

The P0319 fault code indicates a problem within the Rough Road Sensor B signal circuit. This sensor is crucial for detecting road conditions and delivering feedback to the vehicle's electronic control unit (ECU) for optimal performance. Insufficient or erratic signals from this sensor can affect various systems, including traction control and stability management.

What are the symptoms of the P0319 code?

Drivers may experience several symptoms related to the P0319 code:

• The vehicle may exhibit erratic traction control performance.
• Warning lights illuminated on the dashboard, particularly the traction control or ABS lights.
• Reduced stability during cornering or on uneven surfaces.
• Possible changes in handling or responsiveness of the vehicle in rough road conditions.

What causes the P0319 code?

Common causes of the P0319 fault code include:

• Damaged or corroded wiring in the Rough Road Sensor B circuit.
• A faulty Rough Road Sensor B, which may not be able to send the correct signals.
• Poor connections in the electrical connectors associated with the sensor.
• Malfunctions in the ECU or related control modules.
• Mud, dirt, or debris obstructing the sensor's operation.

How to fix P0319?

To resolve the P0319 fault code, consider the following steps:

• Inspect the wiring and connectors for any signs of damage or corrosion and repair or replace as necessary.
• Test the Rough Road Sensor B to ensure it is functioning correctly. If it is faulty, replace it.
• Clear any related fault codes and test drive the vehicle to see if the code reappears.
• Ensure that the ECU is calibrated and functioning correctly if other solutions do not resolve the issue.