AutoCodes – Generic – U1431

U1431 Code - Implausible Data Received From Cruise Control Module

Quick Answer

The system is monitored with the ignition on, battery voltage between 9 and 16 volts, and engine run time greater than three seconds. Common causes include Faulty Adaptive Cruise Control (ACC) Module, Adaptive Cruise Control Module harness is open or shorted, Adaptive Cruise 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
U1431 indicates Implausible Data Received From Cruise Control Module.
Common causes
Common causes include Faulty Adaptive Cruise Control (ACC) Module, Adaptive Cruise Control Module harness is open or shorted, Adaptive Cruise 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.
AI answers can be wrong. Verify repairs with testing. Open full chat
Code Popularity 3,040
How popular is this code, among other codes? Low
Table of contents Created and updated by William Orellana on May 23, 2020
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Code U1431 Description

The system is monitored with the ignition on, battery voltage between 9 and 16 volts, and engine run time greater than three seconds. The Diagnostic Trouble Code (DTC) sets when the Powertrain Control Module (PCM) either doesn't receive a bus message or receives an implausible bus message from the Adaptive Cruise Control (ACC) Module.
OBDII Code U1431 - Implausible Data Received From Cruise Control Module - AutoCodes.com
U1431 Code - Implausible Data Received From Cruise Control Module

What are the Possible Causes of the DTC U1431?

  • Faulty Adaptive Cruise Control (ACC) Module
  • Adaptive Cruise Control Module harness is open or shorted
  • Adaptive Cruise Control Module circuit poor electrical connection
  • Faulty Powertrain Control Module (PCM)

How to Fix the DTC U1431?

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 U1431 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 U1431 code?

Need more information on how to fix the U1431 code? Get Access to Factory Service Manuals

Need Help with the Code?

Get the U1431 code diagnosed by a professional: Find a repair shop in your area

Information for Specific Makes

  • U1431 Chrysler β€” Implausible Data Received From Cruise Control Module
  • U1431 Dodge β€” Implausible Data Received From Cruise Control Module
  • U1431 Jeep β€” Implausible Data Received From Cruise Control Module
  • U1431 RAM β€” Implausible Data Received From Cruise Control Module
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 U1431 Code

1. What are common symptoms of OBDII code U1431 related to the Cruise Control Module?

- Common symptoms include inoperative cruise control, erratic speed control, and illuminated warning lights on the dashboard.

2. What are possible causes of OBDII code U1431 indicating Implausible Data Received from the Cruise Control Module?

- Possible causes may include a faulty cruise control module, damaged wiring or connectors, software issues, or a communication error within the vehicle's network.

3. How can I diagnose the source of OBDII code U1431 on my vehicle?

- Diagnosing this code typically involves using a professional OBDII scanner to retrieve the specific fault codes, checking the cruise control module for proper functionality, inspecting wiring connections for damage, and performing a network communication test.

4. Is it safe to continue driving with OBDII code U1431 triggered in the vehicle?

- It is not recommended to drive with this code active, as it may affect the proper operation of the cruise control system and potentially lead to unsafe driving conditions.

5. Can I reset OBDII code U1431 on my own, or do I need a professional mechanic?

- While you can attempt to clear the code using an OBDII scanner, it is important to address the underlying issue causing the code to prevent it from reoccurring. Consulting a professional mechanic for proper diagnosis and repair is advised.

6. Are there any common repair tips for resolving OBDII code U1431?

- Common repair tips include checking and cleaning the cruise control module connections, ensuring proper power supply and ground connections, updating module software if applicable, and conducting a thorough inspection of related components.

7. Will OBDII code U1431 cause my vehicle to fail an emissions test?

- Depending on the regulations in your area, a triggered U1431 code may cause your vehicle to fail an emissions test, as it indicates a malfunction within the cruise control system that can impact overall vehicle performance.

8. How much does it typically cost to repair OBDII code U1431 related to the Cruise Control Module?

- Repair costs can vary depending on the root cause of the issue, but they may range from $100 to $500 or more, including parts and labor.

9. Can extreme weather conditions or rough driving affect the occurrence of OBDII code U1431?

- Yes, extreme weather conditions or rough driving can potentially impact the cruise control module's operation and lead to the triggering of code U1431. It is important to drive cautiously to avoid damaging components.

10. How long does it usually take to repair OBDII code U1431 once diagnosed?

- The repair time for OBDII code U1431 can vary based on the complexity of the issue and availability of parts. In general, it may take a few hours to a full day for a mechanic to diagnose and fix the problem.

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