AutoCodes – Generic – U1105

U1105 Code - Invalid Or Missing Data For Chassis Status Request

Quick Answer

Modules connected to the class 2 serial data circuit monitor for serial data communications during normal vehicle operation. Common causes include Faulty Module that is not communicating, Module harness is open or shorted, 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: U1105 indicates Invalid Or Missing Data For Chassis Status Request.
Common causes: Common causes include Faulty Module that is not communicating, Module harness is open or shorted, 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 10,026

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 22, 2020

Description
Possible Causes
How To Fix
Cost to Diagnose
FAQs
Comments
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Code U1105 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 U1105 - Invalid Or Missing Data For Chassis Status Request - AutoCodes.com — U1105 Code - Invalid Or Missing Data For Chassis Status Request

What does this mean?

What are the Possible Causes of the DTC U1105?

Faulty Module that is not communicating
Module harness is open or shorted
Module circuit poor electrical connection

How to Fix the DTC U1105?

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 U1105 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 U1105 code?

Need more information on how to fix the U1105 code? Get Access to Factory Service Manuals

Need Help with the Code?

Get the U1105 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 U1105 Code

1. What are the common symptoms of OBDII code U1105?

The common symptoms of OBDII code U1105 include issues with the vehicle's stability control system, traction control system, or other chassis-related functions.

2. What are the possible causes of OBDII code U1105?

Possible causes of OBDII code U1105 include faulty sensors related to chassis status, wiring issues, communication network problems, or a malfunctioning control module.

3. How can I diagnose OBDII code U1105?

Diagnosing OBDII code U1105 involves using a diagnostic scanner to retrieve the code and then performing a thorough inspection of the chassis control system components, such as sensors, wiring, and control modules.

4. What are some repair tips for OBDII code U1105?

Repair tips for OBDII code U1105 may include checking and repairing any damaged wiring, replacing faulty sensors, ensuring proper communication between control modules, and updating software if necessary.

5. Can driving with OBDII code U1105 pose any risks?

Driving with OBDII code U1105 may pose risks as it can affect the vehicle's stability and traction control systems, potentially compromising safety on the road. It is recommended to address the issue promptly.

6. Is it possible to clear OBDII code U1105 without fixing the underlying issue?

Clearing OBDII code U1105 without fixing the underlying issue may temporarily eliminate the warning light, but the problem will likely reoccur. It is best to address the root cause to prevent further issues.

7. How much does it typically cost to repair OBDII code U1105?

The cost of repairing OBDII code U1105 can vary depending on the specific cause of the issue, parts needed for replacement, and labor costs. It is advisable to consult a professional for an accurate estimate.

8. Can OBDII code U1105 be triggered by a loose gas cap?

OBDII code U1105 is not typically triggered by a loose gas cap, as it is related to chassis status request data. However, it is essential to address any issues with the gas cap to prevent other potential codes.

9. Are there any recalls related to OBDII code U1105?

Recalls related to OBDII code U1105 may vary depending on the vehicle make and model. It is recommended to check with the manufacturer or visit the National Highway Traffic Safety Administration (NHTSA) website for any relevant recalls.

10. Can a DIY enthusiast fix OBDII code U1105 at home?

While some DIY enthusiasts may have the skills to diagnose and repair OBDII code U1105 at home, it is recommended to seek professional help, especially when dealing with complex chassis control system issues to ensure proper diagnosis and repair.