AutoCodes – Generic – P2059

P2059 Code - Reductant Injection Air Pump Control Circuit/Open

Quick Answer

P2059 indicates Reductant Injection Air Pump Control Circuit/Open. Common causes include Faulty Reductant Injection Air Pump, Reductant Injection Air Pump harness is open or shorted, Reductant Injection Air Pump 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: P2059 indicates Reductant Injection Air Pump Control Circuit/Open.
Common causes: Common causes include Faulty Reductant Injection Air Pump, Reductant Injection Air Pump harness is open or shorted, Reductant Injection Air Pump 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 7,591

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 P2059 Description

OBDII Code P2059 - Reductant Injection Air Pump Control Circuit/Open - AutoCodes.com — P2059 Code - Reductant Injection Air Pump Control Circuit/Open

What does this mean?

What are the Possible Causes of the DTC P2059?

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

How to Fix the DTC P2059?

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 P2059 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 P2059 code?

Need more information on how to fix the P2059 code? Get Access to Factory Service Manuals

Need Help with the Code?

Get the P2059 code diagnosed by a professional: Find a repair shop in your area

Information for Specific Makes

P2059 Chrysler — O2 Sensor Signal Circuit Signal Voltage Too High
P2059 Dodge — O2 Sensor Signal Circuit Signal Voltage Too High
P2059 Jeep — O2 Sensor Signal Circuit Signal Voltage Too High

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 P2059 Code

1. What are common symptoms of OBDII code P2059 (Reductant Injection Air Pump Control Circuit/Open)?

Common symptoms include the check engine light illuminating, reduced engine performance, and potential issues with the vehicle's emissions system.

2. What are the possible causes of OBDII code P2059?

Possible causes include a faulty reductant injection air pump, damaged wiring or connectors in the control circuit, or a problem with the powertrain control module (PCM).

3. How can I diagnose the cause of OBDII code P2059?

Diagnosis typically involves using a scan tool to retrieve the code, inspecting the reductant injection air pump and its components, checking the wiring and connectors for damage, and testing the control circuit for proper function.

4. Can I still drive my vehicle with OBDII code P2059?

It is not recommended to drive your vehicle with this code present, as it can lead to decreased engine performance and potential emissions issues. It's best to address the problem as soon as possible.

5. How can I repair OBDII code P2059?

Repair options may include replacing the reductant injection air pump, repairing or replacing damaged wiring or connectors, or addressing any issues with the PCM. It's advisable to consult a professional mechanic for proper diagnosis and repair.

6. Is OBDII code P2059 a serious issue?

While it may not cause immediate harm to your vehicle, ignoring this code can lead to more significant problems over time, such as failing emissions tests or reduced engine efficiency. It's best to address the issue promptly.

7. Can a DIY enthusiast fix OBDII code P2059 at home?

Depending on your skill level and access to tools, you may be able to address this code at home. However, due to the complexity of the emissions system and electrical components involved, it's recommended to seek professional help for an accurate diagnosis and repair.

8. Will resetting the OBDII code P2059 make it go away permanently?

Simply clearing the code without addressing the underlying issue will not fix the problem permanently. The code is likely to reappear until the root cause is identified and repaired.

9. How much does it typically cost to repair OBDII code P2059?

Repair costs can vary depending on the specific cause of the code, the extent of the damage, and labor rates in your area. It's best to get a diagnostic from a mechanic to determine the exact cost of repairs.

10. Can OBDII code P2059 cause damage to other vehicle components if left unresolved?

While the immediate risk may be minimal, ongoing issues with the reductant injection air pump or related components can potentially lead to damage to other parts of the emissions system or affect overall engine performance if not addressed in a timely manner.