AutoCodes – Generic – P1016

P1016 Code - Reductant Control Module Sensor Serial Communication 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
P1016 indicates Reductant Control Module Sensor Serial Communication 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 17,683
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 P1016 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 high circuit fault on the signal circuit for greater than 1 s.
OBDII Code P1016 - Reductant Control Module Sensor Serial Communication Circuit High Voltage - AutoCodes.com
P1016 Code - Reductant Control Module Sensor Serial Communication Circuit High Voltage

What are the Possible Causes of the DTC P1016?

  • 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 P1016?

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 P1016 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 P1016 code?

Need more information on how to fix the P1016 code? Get Access to Factory Service Manuals

Need Help with the Code?

Get the P1016 code diagnosed by a professional: Find a repair shop in your area

Information for Specific Makes

  • P1016 Buick β€” Reductant Control Module Sensor Serial Communication Circuit High Voltage
  • P1016 Cadillac β€” Reductant Control Module Sensor Serial Communication Circuit High Voltage
  • P1016 Chevrolet β€” Reductant Control Module Sensor Serial Communication Circuit High Voltage
  • P1016 Dodge β€” Reductant Control Module Sensor Serial Communication Circuit High Voltage
  • P1016 GMC β€” Reductant Control Module Sensor Serial Communication Circuit High Voltage
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 P1016 Code

1. What are the common symptoms of OBDII code P1016?

- Common symptoms include illuminated check engine light, reduced engine performance, and potential difficulty starting the vehicle.

2. What causes the OBDII code P1016 to trigger?

- This code is typically triggered by issues with the reductant control module sensor serial communication circuit, specifically high voltage levels.

3. How serious is the OBDII code P1016?

- While the severity can vary, it is important to address this code promptly to prevent potential damage to the reductant control system and maintain vehicle performance.

4. How can I diagnose the underlying issue causing code P1016?

- Diagnosing this code often involves checking the wiring and connections related to the reductant control module sensor, as well as testing the sensor itself for proper operation.

5. What are some common repair tips for OBDII code P1016?

- Repair tips may include checking and repairing any damaged wiring, replacing the reductant control module sensor if needed, and clearing the code to see if it returns.

6. Can I drive my vehicle with OBDII code P1016?

- It is generally not recommended to drive the vehicle with this code present, as it can lead to potential emissions system issues and reduced engine performance.

7. How much does it typically cost to repair OBDII code P1016?

- The cost of repair can vary depending on the underlying issue, but it may involve expenses for parts and labor, ranging from a few hundred to a few thousand dollars.

8. Can I reset the OBDII code P1016 without fixing the issue?

- While you can clear the code temporarily, it is not advisable as the underlying issue may persist and potentially lead to more serious problems over time.

9. What is the reductant control module sensor responsible for in the vehicle?

- The reductant control module sensor is responsible for monitoring and regulating the emissions control system to reduce harmful pollutants in the exhaust.

10. How can I prevent OBDII code P1016 from recurring in the future?

- Regular maintenance, such as keeping the emissions control system components clean and in good condition, can help prevent the reoccurrence of this code.

Discuss the causes and fixes for P1016 OBDII Code

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