AutoCodes – Jeep – U059F Jeep

U059F Jeep Code - Invalid Data Received From NOX Sensor 'B'

Quick Answer

The aftertreatment system is equipped with two NOx Sensors and modules. Common causes include Faulty Nitrogen Oxide (NOx) Sensor 1/2, Nitrogen Oxide (NOx) Sensor 1/2 harness is open or shorted, Nitrogen Oxide (NOx) Sensor 1/2 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: U059F Jeep indicates Invalid Data Received From NOX Sensor 'B'.
Common causes: Common causes include Faulty Nitrogen Oxide (NOx) Sensor 1/2, Nitrogen Oxide (NOx) Sensor 1/2 harness is open or shorted, Nitrogen Oxide (NOx) Sensor 1/2 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 590

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 14, 2020

Description
Possible Causes
How To Fix
Cost to Diagnose
FAQs
Comments
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Code U059F Jeep Description

The aftertreatment system is equipped with two NOx Sensors and modules. The upstream Nitrogen Oxide (NOx) Sensor 1/1 is located before the SCR Catalyst and is permanently connected to a corresponding NOx Sensor Module mounted on the right frame rail. The downstream NOx Sensor 1/2 is located at the outlet of the SCR Catalyst and is permanently connected to a corresponding NOx Sensor Module also mounted on the right frame rail. The NOx Sensors and NOx Sensor Modules are calibrated to each other and must be replaced as an assembly. The two NOx Sensor and Module assemblies are not interchangeable. The NOx Sensor Modules are smart devices and communicate with the Powertrain Control Module (PCM) over the J1939 Data Link. The NOx Sensor Modules perform their own internal diagnostics and report malfunctions back to the PCM. The NOx Sensors are used to monitor the efficiency of the SCR Catalyst. The PCM will illuminate the MIL lamp immediately after the monitor runs and fails. The PCM will turn off the MIL Lamp after the monitor runs and passes for three consecutive trips.

OBDII Code U059F Jeep - Invalid Data Received From NOX Sensor 'B' - AutoCodes.com — U059F Jeep Code - Invalid Data Received From NOX Sensor 'B'

What does this mean?

What are the Possible Causes of the DTC U059F Jeep?

Faulty Nitrogen Oxide (NOx) Sensor 1/2
Nitrogen Oxide (NOx) Sensor 1/2 harness is open or shorted
Nitrogen Oxide (NOx) Sensor 1/2 circuit poor electrical connection

How to Fix the DTC U059F Jeep?

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 U059F Jeep 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 U059F Jeep Code

1. What are common symptoms of the OBDII code U059F in a Jeep related to the NOX sensor 'B'?

The common symptoms include poor engine performance, decreased fuel efficiency, and the illumination of the Check Engine Light.

2. What does the OBDII code U059F indicate in a Jeep?

The code U059F indicates that the Engine Control Module (ECM) has detected invalid data or signals from the NOX sensor 'B'.

3. What are possible causes of the OBDII code U059F related to the NOX sensor 'B' in a Jeep?

Possible causes include a faulty NOX sensor 'B', damaged wiring or connectors, ECM issues, or software malfunctions.

4. How can I diagnose the cause of the OBDII code U059F in my Jeep?

Diagnosis typically involves using an OBDII scanner to retrieve the specific fault code, inspecting the NOX sensor 'B' and its wiring for damage, and checking for any ECM or software issues.

5. Is it safe to continue driving my Jeep with the OBDII code U059F related to the NOX sensor 'B'?

It is generally not recommended to continue driving with this code as it can lead to further engine damage or emissions issues. It is best to address the problem promptly.

6. Can I repair the OBDII code U059F related to the NOX sensor 'B' in my Jeep myself?

While some DIY enthusiasts may be able to address this issue by replacing the NOX sensor 'B' or fixing wiring problems, it is recommended to consult a qualified mechanic for proper diagnosis and repair.

7. How much does it typically cost to repair the OBDII code U059F in a Jeep caused by the NOX sensor 'B'?

The cost of repair can vary depending on the exact cause of the issue, but it may range from $200 to $500 for parts and labor.

8. Are there any preventive measures to avoid the OBDII code U059F related to the NOX sensor 'B' in a Jeep?

Regular maintenance, such as checking and replacing sensors as recommended by the manufacturer, can help prevent issues like the U059F code from occurring.

9. Can a faulty NOX sensor 'B' trigger other OBDII codes in a Jeep?

Yes, a faulty NOX sensor 'B' can sometimes trigger related codes such as P2201 (NOx Sensor Circuit Range/Performance Bank 1) or P2203 (NOx Sensor Circuit Intermittent Bank 1).

10. How urgent is it to address the OBDII code U059F related to the NOX sensor 'B' in a Jeep?

It is recommended to address this code promptly to prevent potential damage to the engine or catalytic converter and ensure optimal performance and emissions compliance.