AutoCodes – Ford – U0231 Ford

U0231 Ford Code - Lost Communication With Rain Sensing Module

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 Rain Sensing Module, Rain Sensing Module harness is open or shorted, Rain Sensing 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: U0231 Ford indicates Lost Communication With Rain Sensing Module.
Common causes: Common causes include Faulty Rain Sensing Module, Rain Sensing Module harness is open or shorted, Rain Sensing 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 5,534

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 04, 2020

Description
Possible Causes
How To Fix
Cost to Diagnose
FAQs
Comments
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Code U0231 Ford 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. CAN bus uses two dedicated wires for communication. The wires are called CAN high and CAN low. When the CAN bus is in idle mode, both lines carry 2.5V. When data bits are being transmitted, the CAN high line goes to 3.75V, and the CAN low drops to 1.25V, thereby generating a 2.5V differential between the lines. Since communication relies on a voltage differential between the two bus lines, the CAN bus is NOT sensitive to inductive spikes, electrical fields, or other noise. The Diagnostic Trouble Code (DTC) sets when a periodic message from the has not been received.

OBDII Code U0231 Ford - Lost Communication With Rain Sensing Module - AutoCodes.com — U0231 Ford Code - Lost Communication With Rain Sensing Module

What does this mean?

What are the Possible Causes of the DTC U0231 Ford?

Faulty Rain Sensing Module
Rain Sensing Module harness is open or shorted
Rain Sensing Module circuit poor electrical connection

How to Fix the DTC U0231 Ford?

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 U0231 Ford 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 U0231 Ford Code

1. What are the common symptoms of OBDII code U0231 in a Ford vehicle related to a lost communication with the rain sensing module?

- Common symptoms include non-functioning rain-sensing wipers, erratic wiper behavior, and a dashboard warning light related to the rain sensing system.

2. What can cause the U0231 code in a Ford vehicle indicating a lost communication with the rain sensing module?

- Possible causes include a faulty rain sensing module, damaged wiring or connectors, a blown fuse, or a software issue.

3. How can I diagnose the U0231 code in my Ford vehicle for communication issues with the rain sensing module?

- Diagnosis involves checking the rain sensing module's connections, inspecting the wiring for damage, testing the module's functionality, and using a diagnostic scanner to retrieve the code.

4. Is it safe to drive my Ford vehicle with the U0231 code related to the rain sensing module communication error?

- While the vehicle should remain drivable, it is recommended to address the issue promptly to ensure the rain sensing system operates correctly for improved visibility in inclement weather.

5. Can I repair the U0231 code related to the rain sensing module communication issue in my Ford vehicle myself?

- Depending on your automotive repair skills, you may be able to address the issue yourself by checking connections, repairing wiring, or replacing the rain sensing module if necessary.

6. Will resetting the OBDII system clear the U0231 code in my Ford related to the rain sensing module communication problem?

- Resetting the system may temporarily clear the code, but if the underlying issue with the rain sensing module communication persists, the code is likely to reappear.

7. Are there any specific tools or equipment needed to diagnose and repair the U0231 code in a Ford vehicle with rain sensing module communication problems?

- A diagnostic scanner capable of reading OBDII codes, basic hand tools for accessing and inspecting components, and possibly a multimeter for testing electrical connections may be required.

8. How much can I expect to pay for professional repairs related to the U0231 code in a Ford vehicle due to lost communication with the rain sensing module?

- Repair costs can vary depending on the exact cause of the issue, but expect to pay anywhere from $100 to $500 for parts and labor at a dealership or auto repair shop.

9. Can extreme weather conditions, such as heavy rain or extreme cold, trigger the U0231 code related to the rain sensing module in a Ford vehicle?

- While rare, extreme weather conditions can potentially exacerbate existing issues with the rain sensing module communication, leading to the U0231 trouble code.

10. Is the U0231 code in a Ford vehicle related to lost communication with the rain sensing module a common issue that other Ford owners experience?

- While not as common as some other OBDII codes, the U0231 code related to the rain sensing module communication problem does occur in Ford vehicles equipped with this feature.