AutoCodes – Generic – P2053

P2053 Code - Reductant Injection Valve Circuit/Open Bank 1 Unit 2

Quick Answer

The Reductant Dosing Valve (Reductant Injection Valve) is used to meter and atomize the reductant liquid before it is mixed with the exhaust gas. Common causes include Faulty Reductant Injection Valve, Reductant Injection Valve harness is open or shorted, Reductant Injection Valve 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: P2053 indicates Reductant Injection Valve Circuit/Open Bank 1 Unit 2.
Common causes: Common causes include Faulty Reductant Injection Valve, Reductant Injection Valve harness is open or shorted, Reductant Injection Valve 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 9,535

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 Jun 14, 2020

Description
Possible Causes
How To Fix
Cost to Diagnose
FAQs
Comments
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Code P2053 Description

The Reductant Dosing Valve (Reductant Injection Valve) is used to meter and atomize the reductant liquid before it is mixed with the exhaust gas. Normal operating frequency is between 3 Hz and .3 Hz. The cooling body contains heat sink fins to keep the injector and reductant below the boiling point. If the sensed temperature is nearing the maximum temperature threshold, reductant spray will be increased in quantity to actively cool the valve.

OBDII Code P2053 - Reductant Injection Valve Circuit/Open Bank 1 Unit 2 - AutoCodes.com — P2053 Code - Reductant Injection Valve Circuit/Open Bank 1 Unit 2

What does this mean?

What are the Possible Causes of the DTC P2053?

Faulty Reductant Injection Valve
Reductant Injection Valve harness is open or shorted
Reductant Injection Valve circuit poor electrical connection

How to Fix the DTC P2053?

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 P2053 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 P2053 code?

Need more information on how to fix the P2053 code? Get Access to Factory Service Manuals

Need Help with the Code?

Get the P2053 code diagnosed by a professional: Find a repair shop in your area

Information for Specific Makes

P2053 Chevrolet — Reductant Injection Valve Circuit/Open Bank 1 Unit 2
P2053 Dodge — Reductant Injection Valve Circuit/Open Bank 1 Unit 2
P2053 Ford — Reductant Injection Valve Circuit/Open Bank 1 Unit 2
P2053 GMC — Reductant Injection Valve Circuit/Open Bank 1 Unit 2
P2053 Mercedes-Benz — Reductant Injection Valve Circuit/Open Bank 1 Unit 2

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 P2053 Code

1. What are the common symptoms of OBDII code P2053 (Reductant Injection Valve Circuit/Open Bank 1 Unit 2)?

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

2. What can cause the OBDII code P2053 to appear?

- The code P2053 can be triggered by a faulty reductant injection valve, damaged wiring or connectors in the circuit, or issues with the engine control module.

3. How serious is the OBDII code P2053?

- While the vehicle may still be operable with this code, it is important to address it promptly to prevent potential damage to the engine or emissions system.

4. How can I diagnose the cause of OBDII code P2053?

- Diagnosing the code typically involves using a scan tool to check for other related codes, testing the reductant injection valve and its circuit, and inspecting the wiring and connectors for any damage.

5. Can I continue driving with the OBDII code P2053 present?

- It is recommended to avoid driving for an extended period with this code present, as it can lead to reduced fuel efficiency and potential emissions issues.

6. How can I repair OBDII code P2053?

- Repairing the code may involve replacing the faulty reductant injection valve, repairing or replacing damaged wiring or connectors, or resetting the engine control module.

7. Are there any DIY tips for addressing OBDII code P2053?

- DIY tips may include checking the wiring and connectors for visible damage, ensuring proper connection of the reductant injection valve, and clearing the code to see if it reoccurs.

8. Is OBDII code P2053 specific to certain vehicle makes and models?

- While the code can appear in various vehicles, it is more commonly found in diesel-powered vehicles equipped with selective catalytic reduction (SCR) systems.

9. Can a faulty reductant injection valve cause other issues besides triggering the OBDII code P2053?

- Yes, a faulty reductant injection valve can lead to decreased emissions control, increased pollution output, and potential failures in emissions tests.

10. Should I seek professional help for OBDII code P2053?

- If you are unfamiliar with automotive diagnostics and repairs, it is recommended to seek assistance from a qualified mechanic or technician to properly address the code.