AutoCodes – Chevrolet – P1019 Chevrolet

P1019 Chevrolet Code - Reductant Control Module Sensor Communication Voltage Supply Circuit High Voltage

Quick Answer

The Reductant Quality Sensor is located in the reductant tank and uses an ultrasonic signal to measure reductant fluid quality. Common causes include Faulty Reductant Control Module, Reductant Control Module harness is open or shorted, Reductant Control Module circuit poor electrical connection. Severity is High - diagnose this code as soon as possible. Driving is not recommended if the warning light is flashing, the engine runs poorly, or safety-related symptoms are present.

What it means
P1019 Chevrolet indicates Reductant Control Module Sensor Communication Voltage Supply Circuit High Voltage.
Common causes
Common causes include Faulty Reductant Control Module, Reductant Control Module harness is open or shorted, Reductant Control Module circuit poor electrical connection.
Severity
High - diagnose this code as soon as possible.
Can I drive?
Driving is not recommended if the warning light is flashing, the engine runs poorly, or safety-related symptoms are present.
AI answers can be wrong. Verify repairs with testing. Open full chat
Code Popularity 1,033
How popular is this code, among other codes? Low
Table of contents Created and updated by William Orellana on Jul 24, 2021
πŸ’¬ Need more help? Ask Coddy for instant answers β€” it's free!

Code P1019 Chevrolet Description

The Reductant Quality Sensor is located in the reductant tank and uses an ultrasonic signal to measure reductant fluid quality. The Reductant Quality Sensor includes an integrated temperature sensor to measure reductant fluid temperature. The Reductant Quality Sensor communicates with the Reductant Control Module using serial data. The Diagnostic Trouble Code (DTC) will be set if the reductant control module detects a short to voltage on the 5 V reference circuit for greater than 1 s
OBDII Code P1019 Chevrolet - Reductant Control Module Sensor Communication Voltage Supply Circuit High Voltage - AutoCodes.com
P1019 Chevrolet Code - Reductant Control Module Sensor Communication Voltage Supply Circuit High Voltage

What are the Possible Causes of the DTC P1019 Chevrolet?

  • Faulty Reductant Control Module
  • Reductant Control Module harness is open or shorted
  • Reductant Control Module circuit poor electrical connection
  • Faulty Reductant Quality Sensor

How to Fix the DTC P1019 Chevrolet?

Review the 'Possible Causes' above and visually examine the corresponding wiring harness and connectors. Check for damaged components and inspect connector pins for signs of being broken, bent, pushed out, or corroded.

What is the Cost to Diagnose the Code?

Labor: 1.0

To diagnose the P1019 Chevrolet code, it typically requires 1.0 hour of labor. Rates vary by location, vehicle, and shop. Many shops charge between $80–$150 per hour; dealerships and metro areas may be higher, independents may be lower.

Need more information about the P1019 Chevrolet code?

Need more information on how to fix the P1019 Chevrolet code? Get Access to Factory Service Manuals

Need Help with the Code?

Get the P1019 Chevrolet code diagnosed by a professional: Find a repair shop in your area

About the author: William Orellana is a Master Mechanic and Mechanical Engineer with over 30 years of experience diagnosing and repairing vehicles. Learn more about his background.

Frequently Asked Questions about P1019 Chevrolet Code

1. What are common symptoms of OBDII code P1019 on a Chevrolet related to the Reductant Control Module Sensor Communication Voltage Supply Circuit High Voltage issue?

- Common symptoms include the check engine light being illuminated, reduced engine power, poor fuel efficiency, and potential issues with the vehicle's emission system.

2. What are possible causes of OBDII code P1019 on a Chevrolet?

- Possible causes of this code include a faulty reductant control module, issues with the sensor communication circuit, high voltage supply problems, or a malfunction in the reductant control module sensor.

3. How can I diagnose the OBDII code P1019 on my Chevrolet?

- Diagnosing this code typically involves using an OBDII scanner to retrieve the specific fault code, inspecting the reductant control module and sensor connections, checking the voltage supply circuit, and performing a thorough visual inspection of related components.

4. Can I drive my Chevrolet with OBDII code P1019 present?

- It is not recommended to drive your Chevrolet with this code present, as it can lead to potential issues with the vehicle's performance and emission system. It's best to address the problem promptly to prevent further damage.

5. What are some repair tips for resolving OBDII code P1019 on a Chevrolet?

- Repair tips may include checking and repairing any damaged wiring or connectors, replacing the reductant control module or sensor if faulty, ensuring proper voltage supply to the circuit, and clearing the fault code with an OBDII scanner after repairs are completed.

6. Is it possible to reset OBDII code P1019 on a Chevrolet without fixing the underlying issue?

- While you can clear the fault code temporarily, it will likely reappear if the underlying issue causing the code is not addressed. It's important to diagnose and repair the problem to prevent ongoing issues.

7. Can a DIY enthusiast fix OBDII code P1019 on a Chevrolet?

- Depending on your skill level and access to tools, DIY enthusiasts may be able to address this code by following diagnostic procedures, checking connections, and replacing faulty components. However, if unsure, it's best to consult a professional mechanic.

8. How much does it cost to repair OBDII code P1019 on a Chevrolet at a repair shop?

- Repair costs can vary depending on the exact cause of the issue and labor rates in your area. It's advisable to get a diagnostic from a reputable repair shop to receive an accurate estimate for the repair.

9. Will OBDII code P1019 on a Chevrolet cause the vehicle to fail an emissions test?

- Yes, having this code present can cause your Chevrolet to fail an emissions test due to potential issues with the vehicle's emission system. It's important to address the problem before undergoing an emissions test.

10. How long does it typically take to repair OBDII code P1019 on a Chevrolet?

- The repair time can vary based on the specific cause of the issue and the complexity of the repair needed. Some cases may be resolved quickly, while others may require more time for diagnosis and component replacement.

Discuss the causes and fixes for P1019 Chevrolet OBDII Code

Code P1019 Chevrolet comments

No comments found for this page.

AutoCodes App

Fix Your Car Smarter

Try the New AutoCodes App!

Get complete OBDII diagnostics, repair solutions, and cost estimates, plus AI chat support on demand.

AutoCodes App on Google Play