AutoCodes – Generic – U1341

U1341 Code - Invalid Or Missing Data For Function Read Vehicle Speed

Quick Answer

Modules connected to the class 2 serial data circuit monitor for serial data communications during normal vehicle operation. Common causes include Faulty Function Read Vehicle Speed, Function Read Vehicle Speed harness is open or shorted, Function Read Vehicle Speed 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: U1341 indicates Invalid Or Missing Data For Function Read Vehicle Speed.
Common causes: Common causes include Faulty Function Read Vehicle Speed, Function Read Vehicle Speed harness is open or shorted, Function Read Vehicle Speed 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 11,007

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 May 16, 2020

Description
Possible Causes
How To Fix
Cost to Diagnose
FAQs
Comments
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Code U1341 Description

Modules connected to the class 2 serial data circuit monitor for serial data communications during normal vehicle operation. Operating information and commands are exchanged among the modules. When a module receives a message for a critical operating parameter, the module records the identification number of the module which sent the message for State of Health monitoring. A critical operating parameter is one which, when not received, requires that the module use a default value for that parameter. When a module does not associate an identification number with at least one critical parameter within 5 seconds of beginning serial data communication, the Diagnostic Trouble Code (DTC) is set.

OBDII Code U1341 - Invalid Or Missing Data For Function Read Vehicle Speed - AutoCodes.com — U1341 Code - Invalid Or Missing Data For Function Read Vehicle Speed

What does this mean?

What are the Possible Causes of the DTC U1341?

Faulty Function Read Vehicle Speed
Function Read Vehicle Speed harness is open or shorted
Function Read Vehicle Speed circuit poor electrical connection

How to Fix the DTC U1341?

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 U1341 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 U1341 code?

Need more information on how to fix the U1341 code? Get Access to Factory Service Manuals

Need Help with the Code?

Get the U1341 code diagnosed by a professional: Find a repair shop in your area

Information for Specific Makes

U1341 Buick — Invalid Or Missing Data For Function Read Vehicle Speed
U1341 Cadillac — Invalid Or Missing Data For Function Read Vehicle Speed
U1341 Chevrolet — Invalid Or Missing Data For Function Read Vehicle Speed
U1341 GMC — Invalid Or Missing Data For Function Read Vehicle Speed

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 U1341 Code

1. What are the common symptoms of OBDII code U1341?

The common symptoms of OBDII code U1341 include issues with the vehicle's speedometer, erratic speed readings, and potential illumination of the Check Engine Light.

2. What can cause the OBDII code U1341 to appear?

The OBDII code U1341, indicating Invalid or Missing Data for Function Read Vehicle Speed, can be triggered by issues such as a faulty vehicle speed sensor, damaged wiring, or a malfunctioning powertrain control module (PCM).

3. How can I diagnose the OBDII code U1341?

Diagnosing the OBDII code U1341 involves using an OBDII scanner to retrieve the code, checking the vehicle speed sensor for proper operation, inspecting the wiring for any damage, and testing the PCM for faults.

4. Can driving with the OBDII code U1341 present cause any damage to my vehicle?

Continuing to drive with the OBDII code U1341 without addressing the underlying issue can potentially lead to inaccurate speed readings, affecting the vehicle's performance and fuel efficiency. It is recommended to diagnose and repair the problem promptly.

5. Is it safe to ignore the OBDII code U1341 if my vehicle seems to be running fine?

While the vehicle may seem to operate normally with the OBDII code U1341 present, it is not advisable to ignore the issue. Resolving the code promptly can prevent further damage and ensure the proper functioning of the vehicle's speed-related systems.

6. How can I repair the OBDII code U1341 on my own?

If you are familiar with automotive repairs, you can attempt to replace the faulty vehicle speed sensor, repair any damaged wiring, or reset the PCM to clear the code. However, if you are unsure, it is recommended to seek assistance from a professional mechanic.

7. Can extreme weather conditions affect the appearance of the OBDII code U1341?

Extreme weather conditions, such as very low or high temperatures, can potentially impact the performance of the vehicle speed sensor and wiring, leading to the triggering of the OBDII code U1341. It is important to maintain the vehicle properly in all weather conditions.

8. How much does it typically cost to repair the OBDII code U1341 at a repair shop?

The cost of repairing the OBDII code U1341 can vary depending on the underlying issue causing the code, the labor rates of the repair shop, and the cost of any replacement parts needed. It is advisable to obtain quotes from multiple repair shops for an accurate estimate.

9. Can a loose gas cap cause the OBDII code U1341 to appear?

A loose gas cap is not typically related to the OBDII code U1341, which specifically pertains to issues with reading vehicle speed data. However, it is always a good practice to ensure the gas cap is tightened properly to prevent other potential issues.

10. Will resetting the OBDII code U1341 make it go away permanently?

Resetting the OBDII code U1341 may temporarily clear the code, but if the underlying issue causing the code is not addressed, it is likely to reappear. It is crucial to diagnose the problem and perform the necessary repairs to prevent the code from returning.