AutoCodes – RAM – U059E RAM

U059E RAM Code - Invalid Data Received From NOX Sensor 'A'

Quick Answer

The aftertreatment system is equipped with two NOx Sensors and modules. Common causes include Faulty Nitrogen Oxide (NOx) Sensor, Nitrogen Oxide (NOx) Sensor harness is open or shorted, Nitrogen Oxide (NOx) Sensor 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: U059E RAM indicates Invalid Data Received From NOX Sensor 'A'.
Common causes: Common causes include Faulty Nitrogen Oxide (NOx) Sensor, Nitrogen Oxide (NOx) Sensor harness is open or shorted, Nitrogen Oxide (NOx) Sensor 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.

Save to My Repairs My Repairs

AI answers can be wrong. Verify repairs with testing. Open full chat

Code Popularity 2,173

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
Add Comment

💬 Need more help? Ask Coddy for instant answers — it's free!

Code U059E RAM 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 U059E RAM - Invalid Data Received From NOX Sensor 'A' - AutoCodes.com — U059E RAM Code - Invalid Data Received From NOX Sensor 'A'

What does this mean?

What are the Possible Causes of the DTC U059E RAM?

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

How to Fix the DTC U059E RAM?

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 U059E RAM 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 U059E RAM code?

Need more information on how to fix the U059E RAM code? Get Access to Factory Service Manuals

Need Help with the Code?

Get the U059E RAM code diagnosed by a professional: Find a repair shop in your area

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 U059E RAM Code

1. What are the common symptoms of OBDII code U059E RAM?

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

2. What does the OBDII code U059E RAM indicate?

- This code indicates that the engine control module (ECM) has detected invalid data received from the NOx (nitrogen oxide) sensor 'A'.

3. What are the possible causes of the U059E RAM code?

- Possible causes include a faulty NOx sensor 'A', wiring or connection issues, ECM software glitches, or sensor calibration problems.

4. How can I diagnose the U059E RAM code?

- Diagnosing this code typically involves checking the wiring and connections to the NOx sensor 'A', testing the sensor's output, and verifying the sensor's calibration.

5. Can driving with the U059E RAM code cause further damage?

- Continuing to drive with this code may lead to increased emissions, reduced engine efficiency, and potential damage to the catalytic converter or other emission control components.

6. How can I repair the U059E RAM code issue?

- Repair options may include replacing the NOx sensor 'A', repairing any damaged wiring or connections, updating the ECM software, or recalibrating the sensor.

7. Is it safe to ignore the U059E RAM code?

- Ignoring this code can lead to decreased engine performance and potential emissions issues, so it is recommended to address the underlying problem promptly.

8. Can I reset the U059E RAM code with an OBDII scanner?

- While an OBDII scanner can clear the code, it is important to diagnose and repair the root cause to prevent the code from reappearing.

9. How much does it typically cost to fix the U059E RAM code?

- The cost of fixing this code can vary depending on the specific issue, but it may range from a few hundred dollars for sensor replacement to more for complex repairs.

10. Can a DIY enthusiast repair the U059E RAM code issue?

- Depending on the skill level and tools available, some DIY enthusiasts may be able to diagnose and address simple issues related to the U059E RAM code, such as checking wiring connections or replacing the sensor. However, more complex problems may require professional assistance.