AutoCodesChrysler – U0431 Chrysler

U0431 Chrysler Code - Invalid Data Received From Body Control Module 'A'

Quick Answer

A Controller Area Network (CAN) is a vehicle bus standard designed to interconnect automotive devices without a host computer. Common causes include Faulty Body Control Module (BCM) 'A', Body Control Module 'A' harness is open or shorted, Body Control Module 'A' 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
U0431 Chrysler indicates Invalid Data Received From Body Control Module 'A'.
Common causes
Common causes include Faulty Body Control Module (BCM) 'A', Body Control Module 'A' harness is open or shorted, Body Control Module 'A' 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 2,444
How popular is this code, among other codes? Low
Table of contents Created and updated by William Orellana on Apr 12, 2020
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Code U0431 Chrysler Description

A Controller Area Network (CAN) is a vehicle bus standard designed to interconnect automotive devices without a host computer. Operating information and commands are exchanged among the devices. The devices have programmed information about what messages are needed to be exchanged on the serial data circuits. Some devices are constantly receiving information from other devices through serial data communication network. The invalid data Diagnostic Trouble Code (DTC) will be set when a receiving device detects a discrepancy in the information it receives from the Body Control Module (BCM) 'A' causing its integrity to be questioned.
OBDII Code U0431 Chrysler - Invalid Data Received From Body Control Module 'A' - AutoCodes.com
U0431 Chrysler Code - Invalid Data Received From Body Control Module 'A'

What are the Possible Causes of the DTC U0431 Chrysler?

  • Faulty Body Control Module (BCM) 'A'
  • Body Control Module 'A' harness is open or shorted
  • Body Control Module 'A' circuit poor electrical connection

How to Fix the DTC U0431 Chrysler?

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 U0431 Chrysler 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 U0431 Chrysler Code

1. What does the OBDII code U0431 mean on a Chrysler vehicle?

U0431 indicates that the Body Control Module 'A' (BCM) is sending invalid data to other vehicle modules, which can affect electronic systems reliant on the BCM.

2. What are the common symptoms of the U0431 code on a Chrysler?

Symptoms may include malfunctioning lighting systems, issues with power windows or locks, erratic dashboard indicators, or problems with other body-related electronic systems.

3. What causes the U0431 code to appear in a Chrysler?

Common causes include software glitches in the BCM, a failed BCM, faulty wiring or connectors, or communication errors between modules.

4. Can the U0431 code cause drivability issues in my Chrysler?

Typically, U0431 does not directly affect drivability but may impair comfort or convenience features like climate control, power accessories, or lighting.

5. How can I diagnose the U0431 code on my Chrysler?

Start by scanning the vehicle with an OBDII scanner to confirm the code, inspect BCM-related wiring and connectors for damage, and check for software updates or module compatibility issues.

6. Is the U0431 code a serious issue in a Chrysler vehicle?

While it usually doesn’t affect drivability, ignoring the code can lead to worsening electrical issues or failure of body-related systems.

7. Can I continue driving my Chrysler with the U0431 code active?

Yes, but it’s recommended to address the issue promptly as it could lead to further electrical problems or inconvenience due to malfunctioning features.

8. How do you fix the U0431 code on a Chrysler?

Repairs may involve updating the BCM software, repairing or replacing damaged wiring or connectors, or replacing the BCM if it’s determined to be faulty.

9. Does clearing the U0431 code with a scanner fix the problem?

Clearing the code may temporarily reset the system, but the underlying issue must be addressed to prevent the code from returning.

10. How much does it cost to fix the U0431 code on a Chrysler?

Repair costs vary but can range from $100 for minor wiring fixes to $500 or more if the BCM needs to be replaced and reprogrammed.

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