AutoCodes – Generic – U055A

U055A Code - Invalid Data Received From Special Purpose Vehicle 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 Special Purpose Vehicle Control Module 'A', Special Purpose Vehicle Control Module 'A' harness is open or shorted, Special Purpose Vehicle 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: U055A indicates Invalid Data Received From Special Purpose Vehicle Control Module 'A'.
Common causes: Common causes include Faulty Special Purpose Vehicle Control Module 'A', Special Purpose Vehicle Control Module 'A' harness is open or shorted, Special Purpose Vehicle 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 2,758

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 14, 2020

Description
Possible Causes
How To Fix
Cost to Diagnose
FAQs
Comments
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Code U055A 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 Special Purpose Vehicle Control Module 'A' causing its integrity to be questioned.

OBDII Code U055A - Invalid Data Received From Special Purpose Vehicle Control Module 'A' - AutoCodes.com — U055A Code - Invalid Data Received From Special Purpose Vehicle Control Module 'A'

What does this mean?

What are the Possible Causes of the DTC U055A?

Faulty Special Purpose Vehicle Control Module 'A'
Special Purpose Vehicle Control Module 'A' harness is open or shorted
Special Purpose Vehicle Control Module 'A' circuit poor electrical connection

How to Fix the DTC U055A?

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 U055A 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 U055A code?

Need more information on how to fix the U055A code? Get Access to Factory Service Manuals

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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 U055A Code

1. What are the common symptoms of OBDII code U055A?

- Common symptoms include issues with the vehicle's special purpose systems like adaptive cruise control, lane-keeping assist, or parking sensors not functioning properly.

2. What could cause the OBDII code U055A to appear?

- The code U055A is typically triggered by communication errors between the vehicle's main computer and the special purpose vehicle control module 'A'.

3. How can I diagnose the OBDII code U055A?

- Diagnosis involves using a professional OBDII scanner to retrieve the code and checking for any other related codes that may give clues about the specific issue.

4. Is it safe to continue driving with the OBDII code U055A present?

- It is generally safe to drive the vehicle with this code, but it is recommended to address the issue promptly to ensure proper functioning of special purpose vehicle systems.

5. What are some common repair tips for resolving the OBDII code U055A?

- Repair tips may include checking and repairing any damaged wiring or connectors related to the special purpose vehicle control module 'A', and ensuring proper communication between modules.

6. Can resetting the OBDII code U055A resolve the issue?

- Resetting the code may temporarily clear the warning light, but if the underlying issue causing the code is not addressed, it is likely to reappear.

7. Do I need a professional mechanic to fix the OBDII code U055A?

- While it is recommended to seek assistance from a professional mechanic for accurate diagnosis and repair, some DIY enthusiasts may be able to troubleshoot and fix the issue themselves.

8. Are there any recalls or technical service bulletins related to the OBDII code U055A?

- It is advisable to check with the vehicle manufacturer or authorized service centers for any recalls or technical bulletins related to the U055A code for specific models.

9. Can extreme weather conditions trigger the OBDII code U055A?

- Yes, extreme weather conditions like extreme cold or heat can sometimes affect the communication between vehicle modules and trigger the U055A code.

10. How can I prevent the OBDII code U055A from reoccurring in the future?

- Regular maintenance checks, ensuring proper connections, and addressing any underlying issues promptly can help prevent the U055A code from reoccurring.