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Code P0319

Quick reference

P0319 at a glance

Plain-language meaning
This code means that the car's computer is having trouble reading a signal from a sensor that helps it know if the road is bumpy or not.
Urgency
Moderate – It's important to address this issue to maintain vehicle handling and safety.
Difficulty
Moderate
System
Sensor Issue
Tools mentioned
OBD-II scanner, Multimeter, Socket set

This summary uses the existing diagnostic information shown in full below.

Laymans terms

This code means that the car's computer is having trouble reading a signal from a sensor that helps it know if the road is bumpy or not.

Explanation

The P0319 code is triggered when the Engine Control Module (ECM) detects a malfunction in the signal circuit of the Rough Road Sensor B.

Technical description

The Rough Road Sensor B is responsible for detecting road conditions and sending this information to the ECM. This helps the vehicle adjust its performance for optimal handling and safety. A fault in this sensor's signal circuit can lead to improper vehicle response to road conditions.

Symptoms

• Check Engine Light is on

• Poor vehicle handling on rough roads

• Inconsistent ride quality

Common Causes

• Faulty Rough Road Sensor B

• Damaged wiring or connectors

• Faulty ECM

Glossary

ECM: Engine Control Module

OBD-II: On-Board Diagnostics II

Diagnosis steps

• Use an OBD-II scanner to confirm the code.

• Inspect the wiring and connectors for the Rough Road Sensor B.

• Test the sensor for proper operation.

Repair procedures

• Replace the Rough Road Sensor B if faulty.

• Repair or replace damaged wiring or connectors.

• Reprogram or replace the ECM if necessary.

Tools required

• OBD-II scanner

• Multimeter

• Socket set

Estimated repair cost

$150 - $400

Difficulty level

Moderate

Commonly affected vehicles

• Toyota Camry

• Honda Accord

• Ford Focus

Preventive measures

• Regularly inspect and maintain vehicle sensors.

• Ensure wiring and connectors are in good condition.

• Avoid driving on extremely rough roads when possible.

Error code type

Sensor Issue

User experience recommendations

• Have the vehicle inspected by a professional if the Check Engine Light comes on.

• Avoid rough roads until the issue is resolved.

Warranty information

Check with your vehicle manufacturer for specific warranty coverage on sensors.

Historical data

This code is relatively uncommon and typically occurs in vehicles with high mileage or those frequently driven on rough terrain.

Urgency level

Moderate – It's important to address this issue to maintain vehicle handling and safety.

Testing conditions

• Vehicle must be driven on a rough road.

• Engine must be running.

Component location

Typically located near the vehicle's suspension system.

FAQs

Q: Can I drive with a P0319 code?
A: It's best to have it checked soon, as it can affect vehicle handling.

Q: Is it expensive to fix a P0319 code?
A: The cost can vary, but it typically ranges from $150 to $400.

Optional diagnostic gear

Tools that may help diagnose P0319

THINKCAR ThinkScan Bidirectional diagnostic tool illustration

High-End · Full-system diagnostics

THINKCAR ThinkScan Bidirectional

A full-system bidirectional platform aimed at advanced DIY users and professional diagnostic workflows.

Network faults often require full-system access instead of a generic code reader alone.

View on Amazon
Klein Tools MM325 diagnostic tool illustration

Universal · Digital multimeter

Klein Tools MM325

A solid entry-level multimeter for voltage, continuity, resistance, and basic electrical troubleshooting.

Helpful for checking voltage drops, grounds, and basic circuit health when modules are not communicating.

View on Amazon
WORKPRO Wiring Repair Kit diagnostic tool illustration

Universal · Wire connectors and repair kit

WORKPRO Wiring Repair Kit

Useful when diagnosis points toward damaged wiring, corroded terminals, or connector repairs.

Useful if diagnosis points toward damaged connectors, wiring, or terminal repairs.

View on Amazon

These are optional diagnostic tools, not guaranteed fixes. As an Amazon Associate I earn from qualifying purchases.

Source: ezOBD2 diagnostic database
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