AutoCodesDodge – P1019 Dodge

P1019 Dodge 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 Dodge 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.
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Code Popularity 3,124
How popular is this code, among other codes? Low
Table of contents Created and updated by William Orellana on Jul 24, 2021
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Code P1019 Dodge 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 Dodge - Reductant Control Module Sensor Communication Voltage Supply Circuit High Voltage - AutoCodes.com
P1019 Dodge Code - Reductant Control Module Sensor Communication Voltage Supply Circuit High Voltage

What are the Possible Causes of the DTC P1019 Dodge?

  • 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 Dodge?

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 Dodge 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.

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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 Dodge Code

What does the OBDII code P1019 mean on a Dodge vehicle?

P1019 indicates a high voltage issue in the communication circuit of the Reductant Control Module Sensor Voltage Supply, which is part of the emissions system.

What are the common symptoms of code P1019 in Dodge vehicles?

Symptoms may include the check engine light illumination, reduced engine performance, and issues with the diesel exhaust fluid (DEF) system.

What causes the P1019 code in Dodge vehicles?

Possible causes include damaged wiring or connectors, a faulty Reductant Control Module, or issues with the DEF system components.

Can driving with the P1019 code cause further damage to the vehicle?

Driving with this code may lead to reduced engine performance and potential damage to the emissions system if left unaddressed.

How can I diagnose the P1019 code on a Dodge?

Inspect the wiring and connectors for damage, test the voltage supply to the Reductant Control Module, and scan for related codes to pinpoint the issue.

What tools are needed to troubleshoot the P1019 code?

You’ll need an OBDII scanner, a multimeter for testing voltage, and possibly wiring diagrams for the affected circuit.

How is the P1019 code fixed on Dodge vehicles?

Repairs may involve replacing damaged wiring, connectors, or the Reductant Control Module, or addressing issues with the DEF system.

Can a faulty Reductant Control Module cause the P1019 code?

Yes, a faulty module can prevent proper communication or voltage regulation and trigger this code.

How much does it typically cost to repair the P1019 code?

Repair costs vary but can range from $100 to $600, depending on parts and labor required to fix the issue.

How can I prevent the P1019 code from occurring again?

Regularly inspect the DEF system, wiring, and connectors for damage and ensure proper maintenance of the emissions system.

Discuss the causes and fixes for P1019 Dodge OBDII Code

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