C0058 — ISO/SAE Reserved #

Note: The description for DTC C0058 may vary depending on the vehicle manufacturer and their diagnostic system implementation.

• ISO/SAE Reserved (General, most OEMs)
• Chassis Reserved (GM, Ford, FCA/Stellantis, Toyota, Honda, Nissan, Hyundai-Kia, VW/Audi, BMW, Mercedes-Benz, etc.)

Summary of code C0058 #

The diagnostic trouble code (DTC) C0058 is labeled as ISO/SAE Reserved across virtually all manufacturers. This means that the code has been set aside by the International Organization for Standardization (ISO) and the Society of Automotive Engineers (SAE) for future system use, and does not currently have a specific definition or assigned fault according to standard OBD-II/EOBD protocols. When this code appears, it typically indicates either a scan tool miscommunication, a software anomaly, or a manufacturer-specific test mode. Since it is not linked to a specific vehicle subsystem, C0058 generally does not correspond to a real-world fault in your vehicle’s operation. However, its appearance can sometimes be a symptom of underlying communication issues or scan tool errors.

Common Symptoms for code C0058 #

Since C0058 is a reserved code and not actively assigned to any particular fault, vehicles rarely exhibit physical symptoms directly related to this code. In most cases, the driver or technician will only encounter this code during a diagnostic scan. However, in rare scenarios, it may be accompanied by generic issues related to vehicle communication or scan tool access. Typical symptoms may include:

• No observable symptoms — vehicle operates normally.
• Check Engine Light or another warning light may illuminate if paired with other active codes.
• Diagnostic tool communication errors or incomplete scan data.
• Inconsistent or unexpected code retrieval with certain scan tools.

Probable Causes for code C0058 #

The appearance of C0058 most often results from diagnostic or communication anomalies, rather than a true vehicle fault. The most frequent causes, in order of likelihood, include:

1. Scan tool or software incompatibility: Using an outdated or non-OEM diagnostic tool can trigger reserved codes.
2. Vehicle control module software glitch: Rarely, a minor glitch in an ECU (Electronic Control Unit) or other onboard controller may produce a false reserved code.
3. Aftermarket device interference: Add-on modules or telematics devices may disrupt OBD-II communication.
4. CAN bus (Controller Area Network) communication errors: Faults in the vehicle’s communication network may cause invalid or reserved codes to appear.
5. Incorrect scan procedure: Retrieving codes with the ignition off, or during module reprogramming, may yield reserved codes.

Step-by-step diagnosis for code C0058 #

Diagnosis for C0058 focuses on ruling out scan tool or communication issues. Here’s a recommended step-by-step approach for technicians and DIYers:

• Step 1: Verify the code with a second, up-to-date scan tool compatible with your vehicle’s OEM specifications.
• Step 2: Check for additional DTCs, especially those related to network or module communication.
• Step 3: Inspect OBD-II port for bent pins, debris, or corrosion.
• Step 4: Disconnect any aftermarket devices (telematics, trackers, dongles) and re-scan.
• Step 5: Power cycle the vehicle (turn ignition off, wait, then restart) and clear all codes, then monitor if C0058 returns.
• Step 6: If communication errors persist or other codes are present, follow manufacturer-specific diagnostic flowcharts for CAN bus or network faults.

Possible repairs for code C0058 #

Because C0058 is a reserved code, repairs are generally not required unless other active codes or symptoms are present. However, if the code is persistent, consider the following actions:

• Update or replace the scan tool/software: Use a tool with the latest OEM protocols.
• Repair or replace damaged OBD-II port: Clean or fix bent/corroded pins as needed.
• Remove and test without aftermarket accessories: Eliminate interference from add-on devices.
• Address underlying communication faults: If other CAN bus or network codes are found, trace and repair wiring or module issues per OEM procedure.
• Reflash or update vehicle control modules: Only if recommended by a technical service bulletin (TSB) from the OEM.

Can you drive with code C0058? #

Yes, you can continue driving with code C0058 present, as long as there are no other active trouble codes or vehicle performance symptoms. This code alone does not indicate a critical fault and will not affect vehicle safety or drivability. If accompanied by other communication or system codes, address those according to priority.

Vehicles most affected by code C0058 #

C0058 may appear on any modern vehicle equipped with OBD-II/EOBD diagnostics, especially when using generic or non-updated scan tools. It is not specific to one make or model, but is more frequently reported by:

• General Motors (Chevrolet, GMC, Buick, Cadillac)
• Ford/Lincoln
• Toyota/Lexus
• Honda/Acura
• Nissan/Infiniti
• Hyundai/Kia
• Volkswagen/Audi
• BMW/MINI
• Mercedes-Benz/Smart

Common mistakes & best practices for code C0058 #

It’s easy to misinterpret C0058 as a real fault, leading to unnecessary repairs or confusion. To avoid common pitfalls, keep these points in mind:

• Mistaking C0058 for a specific vehicle fault when it is only a reserved code.
• Overlooking scan tool compatibility or software update status.
• Ignoring possible interference from aftermarket or telematics devices.
• Attempting repairs without checking for related communication codes.
• Failing to consult OEM service information or technical service bulletins (TSBs).

Quick FAQ — C0058 #

Is C0058 a cause for concern?
No, C0058 is a reserved code and does not indicate a specific vehicle fault. If no other codes or symptoms are present, no action is needed beyond a basic scan tool check.

How do I clear code C0058?
Clearing C0058 is usually as simple as updating your scan tool, disconnecting aftermarket accessories, and clearing codes with the ignition on. If the code returns, verify with a different scan tool or seek professional assistance to check for communication errors.