AutoCodes – Generic – U0058

U0058 Code - Vehicle Communication Bus 'D' (+) Low

Quick Answer

A Controller Area Network (CAN) is a vehicle bus standard designed to interconnect automotive devices without a host computer. Common causes include Diagnosis of this Diagnostic Trouble Code (DTC) is accomplished via the vehicle symptom(s), Check for more codes, Faulty Control Module. 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: U0058 indicates Vehicle Communication Bus 'D' (+) Low.
Common causes: Common causes include Diagnosis of this Diagnostic Trouble Code (DTC) is accomplished via the vehicle symptom(s), Check for more codes, Faulty Control Module.
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 2,629

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 Mar 29, 2020

Description
Possible Causes
How To Fix
Cost to Diagnose
FAQs
Comments
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Code U0058 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 supervised periodic message that includes the transmitter device availability has not been received.

OBDII Code U0058 - Vehicle Communication Bus 'D' (+) Low - AutoCodes.com — U0058 Code - Vehicle Communication Bus 'D' (+) Low

What does this mean?

What are the Possible Causes of the DTC U0058?

Diagnosis of this Diagnostic Trouble Code (DTC) is accomplished via the vehicle symptom(s)
Check for more codes
Faulty Control Module
Control Module harness is open or shorted
Control Module circuit poor electrical connection

How to Fix the DTC U0058?

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 U0058 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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Need Help with the Code?

Get the U0058 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 U0058 Code

1. What does the OBDII code U0058 mean?

U0058 indicates a low signal or communication issue on the Vehicle Communication Bus 'D' (+), which is part of the vehicle's network system used for data exchange between modules.

2. What are the common symptoms of the U0058 code?

Common symptoms include illuminated warning lights on the dashboard, such as the check engine light, loss of communication with certain modules, or intermittent malfunctions in electronic systems.

3. What causes the U0058 code to appear?

The code may be triggered by damaged wiring or connectors in the communication bus, a faulty control module, network interference, or low battery voltage.

4. How is the U0058 code diagnosed?

A technician will use a scan tool to check for related codes, inspect the wiring and connectors in the communication network, and test the modules for proper functionality.

5. Can a weak or dead battery cause the U0058 code?

Yes, a weak or dead battery can cause voltage issues that disrupt the communication bus, potentially triggering the U0058 code.

6. Is the U0058 code serious?

While the car may still be drivable, the code can indicate critical communication issues that may affect vehicle performance or safety systems, so it should be addressed promptly.

7. Can I fix the U0058 code myself?

If you're experienced with automotive electrical systems, you can inspect and repair damaged wires or connectors. Otherwise, it's best to consult a professional mechanic.

8. What tools are needed to troubleshoot the U0058 code?

Youâ€™ll need an OBDII scan tool, a multimeter for checking voltage and continuity, and possibly a wiring diagram for the vehicleâ€™s communication system.

9. How much does it cost to repair the U0058 code?

Repair costs can vary depending on the issue. Simple fixes like repairing wiring may cost $50-$150, while replacing a faulty module can cost $500 or more.

10. Can the U0058 code clear itself?

The code may clear temporarily if the issue is intermittent, but the underlying problem will need to be resolved for a permanent fix.