AutoCodes – Dodge – U11C1 Dodge

U11C1 Dodge Code - Reductant Control Module Received Implausible Data From ECM/PCM

Quick Answer

The Diesel Exhaust Fluid (DEF) Dosing Control Unit is used to control the operation and monitoring of the Diesel Exhaust Fluid system. Common causes include Faulty Diesel Exhaust Fluid (DEF) Dosing Control Unit, Diesel Exhaust Fluid Dosing Control Unit harness is open or shorted, Diesel Exhaust Fluid Dosing Control Unit 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: U11C1 Dodge indicates Reductant Control Module Received Implausible Data From ECM/PCM.
Common causes: Common causes include Faulty Diesel Exhaust Fluid (DEF) Dosing Control Unit, Diesel Exhaust Fluid Dosing Control Unit harness is open or shorted, Diesel Exhaust Fluid Dosing Control Unit 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 1,290

How popular is this code, among other codes? Low

Repair Importance Level

Urgent (Diagnose now) (3 / 3)

Repair Difficulty Level

Advanced (Pro) (3 / 3)

What is this?

Table of contents Created and updated by William Orellana on Apr 28, 2020

Description
Possible Causes
How To Fix
Cost to Diagnose
FAQs
Comments
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Code U11C1 Dodge Description

The Diesel Exhaust Fluid (DEF) Dosing Control Unit is used to control the operation and monitoring of the Diesel Exhaust Fluid system. The DEF Dosing Control Unit is the central control for the aftertreatment diesel exhaust fluid dosing system, and handles the tank level sensing, tank temperature sensing, line heating, and tank heating. The DEF Dosing Control Unit shares information with the Powertrain Control Module (PCM) over the J1939 Data Link. The PCM will illuminate the MIL light after the diagnostics runs and fails for two consecutive trips. The PCM will turn off the MIL light when the monitor runs and passes in three consecutive key cycles. The Diagnostic Trouble Code (DTC) sets when the DEF Dosing Control Unit cannot interpret Data link messages from the Powertrain Control Module.

OBDII Code U11C1 Dodge - Reductant Control Module Received Implausible Data From ECM/PCM - AutoCodes.com — U11C1 Dodge Code - Reductant Control Module Received Implausible Data From ECM/PCM

What does this mean?

What are the Possible Causes of the DTC U11C1 Dodge?

Faulty Diesel Exhaust Fluid (DEF) Dosing Control Unit
Diesel Exhaust Fluid Dosing Control Unit harness is open or shorted
Diesel Exhaust Fluid Dosing Control Unit circuit poor electrical connection
Faulty Powertrain Control Module (PCM)

How to Fix the DTC U11C1 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 U11C1 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 U11C1 Dodge Code

1. What are the common symptoms of OBDII code U11C1 in a Dodge related to the Reductant Control Module receiving implausible data from the ECM/PCM?

- Common symptoms include poor engine performance, reduced fuel efficiency, and the illumination of the check engine light.

2. What are some possible causes of OBDII code U11C1 in a Dodge?

- Possible causes may include a faulty Reductant Control Module, issues with the ECM/PCM communication, wiring problems, or sensor malfunctions.

3. How can I diagnose the OBDII code U11C1 in my Dodge?

- Diagnosis typically involves using a diagnostic scanner to retrieve the code, checking for any related codes, inspecting wiring and connectors, and testing the Reductant Control Module and associated components.

4. What steps can I take to repair OBDII code U11C1 in my Dodge?

- Repair may involve clearing the code and resetting the system, repairing or replacing damaged wiring, replacing the Reductant Control Module, updating software, or addressing any other underlying issues.

5. Can I continue driving my Dodge with OBDII code U11C1 present?

- It is not recommended to continue driving with this code present, as it can lead to further engine damage and potentially higher repair costs if left unresolved.

6. How much does it typically cost to repair OBDII code U11C1 in a Dodge?

- The cost of repair can vary depending on the specific issue causing the code, but it may range from a few hundred to over a thousand dollars, including parts and labor.

7. Are there any preventative maintenance steps to avoid OBDII code U11C1 in a Dodge?

- Regularly scheduled maintenance, such as keeping up with oil changes, checking fluid levels, and addressing any warning lights promptly, can help prevent issues that may trigger this code.

8. Is it possible to reset OBDII code U11C1 in a Dodge without visiting a mechanic?

- While you can attempt to clear the code using a diagnostic scanner, it is important to address the underlying issue causing the code to prevent it from reoccurring.

9. Can a DIY enthusiast with basic automotive knowledge repair OBDII code U11C1 in a Dodge?

- Depending on the specific cause, some repairs related to this code may be within reach of a DIY enthusiast, but more complex issues may require professional diagnosis and repair.

10. How long does it take to repair OBDII code U11C1 in a Dodge?

- The repair time can vary based on the cause of the code and the extent of the necessary repairs, but it can typically take a few hours to a full day to diagnose and address the issue.