AutoCodes – Jeep – U1491 Jeep

U1491 Jeep Code - Implausible Fuel Level 2 Signal Received

Quick Answer

The Diagnostic Trouble Code (DTC) will set if the Module receives an implausible or Signal Not Available (SNA) fuel level message from the Body Control Module (BCM). Common causes include Faulty Body Control Module (BCM), Body Control Module harness is open or shorted, Body Control Module 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: U1491 Jeep indicates Implausible Fuel Level 2 Signal Received.
Common causes: Common causes include Faulty Body Control Module (BCM), Body Control Module harness is open or shorted, Body Control Module 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 495

How popular is this code, among other codes? Low

Repair Importance Level

Urgent (Diagnose now) (3 / 3)

Repair Difficulty Level

Advanced (Pro) (3 / 3)

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Table of contents Created and updated by William Orellana on May 31, 2020

Description
Possible Causes
How To Fix
Cost to Diagnose
FAQs
Comments
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Code U1491 Jeep Description

The Diagnostic Trouble Code (DTC) will set if the Module receives an implausible or Signal Not Available (SNA) fuel level message from the Body Control Module (BCM).

OBDII Code U1491 Jeep - Implausible Fuel Level 2 Signal Received - AutoCodes.com — U1491 Jeep Code - Implausible Fuel Level 2 Signal Received

What does this mean?

What are the Possible Causes of the DTC U1491 Jeep?

Faulty Body Control Module (BCM)
Body Control Module harness is open or shorted
Body Control Module circuit poor electrical connection
Faulty Instrument Cluster

How to Fix the DTC U1491 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 U1491 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.

Need more information about the U1491 Jeep code?

Need more information on how to fix the U1491 Jeep code? Get Access to Factory Service Manuals

Need Help with the Code?

Get the U1491 Jeep 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 U1491 Jeep Code

1. What does the OBDII code U1491 Jeep mean?

The code U1491 Jeep indicates an "Implausible Fuel Level 2 Signal Received" error, suggesting a problem with the fuel level sensor signal.

2. What are common symptoms of the U1491 Jeep code?

Common symptoms may include inaccurate fuel level readings on the dashboard, fluctuating fuel gauge readings, or the fuel gauge staying at empty or full regardless of actual fuel levels.

3. What are possible causes of the U1491 Jeep code?

Potential causes of the U1491 code include a faulty fuel level sensor, wiring issues in the fuel level sensor circuit, a defective instrument cluster, or a problem with the Body Control Module (BCM).

4. How do I diagnose the U1491 Jeep code?

Diagnosis typically involves checking the fuel level sensor for proper operation, inspecting the wiring for any damage or loose connections, and using a scan tool to communicate with the BCM and instrument cluster for diagnostic trouble code (DTC) information.

5. How can I repair the U1491 Jeep code?

Repair options may include replacing the faulty fuel level sensor, repairing any damaged wiring in the sensor circuit, resetting the instrument cluster, or reprogramming the BCM if necessary.

6. Can I drive my Jeep with the U1491 code?

It is generally safe to drive your Jeep with the U1491 code, but it is essential to address the underlying issue promptly to prevent any inconvenience from inaccurate fuel level readings.

7. Will the U1491 code cause any damage to my Jeep?

The U1491 code is unlikely to cause immediate damage to your Jeep, but it can lead to inconvenience and potential issues if the fuel level readings are not reliable.

8. How much does it cost to repair the U1491 code on a Jeep?

The cost of repairing the U1491 code can vary depending on the specific cause of the issue, but it may involve sensor replacement, wiring repairs, or module reprogramming, which could range from relatively inexpensive to more costly repairs.

9. Can I reset the U1491 code on my Jeep without fixing the issue?

While you can clear the code with a scan tool, it is essential to address the underlying problem causing the U1491 code to prevent recurring issues with fuel level readings.

10. Is the U1491 Jeep code a common problem in Jeeps?

The U1491 code related to an implausible fuel level signal is not uncommon in Jeeps, particularly in models with fuel level sensor or instrument cluster issues.