P0058 Buick Code - HO2S Heater Control Circuit High Voltage Bank 2 Sensor 2
Quick Answer
Heated Oxygen Sensors (HO2S) are used for fuel control and post catalyst monitoring. Common causes include Faulty Heated Oxygen Sensor (H2OS) Bank 2 Sensor 2, Heated Oxygen Sensor Bank 2 Sensor 2 harness is open shorted, Heated Oxygen Sensor Bank 2 Sensor 2 circuit poor electrical connection. Severity is Moderate - service should be scheduled soon. The vehicle may still be drivable for short trips if it runs normally, but avoid hard driving and repair it soon.
- What it means
- P0058 Buick indicates HO2S Heater Control Circuit High Voltage Bank 2 Sensor 2.
- Common causes
- Common causes include Faulty Heated Oxygen Sensor (H2OS) Bank 2 Sensor 2, Heated Oxygen Sensor Bank 2 Sensor 2 harness is open shorted, Heated Oxygen Sensor Bank 2 Sensor 2 circuit poor electrical connection.
- Severity
- Moderate - service should be scheduled soon.
- Can I drive?
- The vehicle may still be drivable for short trips if it runs normally, but avoid hard driving and repair it soon.
Code P0058 Buick Description
The Diagnostic Trouble Code (DTC) will be set when the ECM detects a short to voltage in the heater output low side driver circuit of the heated oxygen sensor when the heater is commanded ON for greater than 5 s.
What are the Possible Causes of the DTC P0058 Buick?
- Faulty Heated Oxygen Sensor (H2OS) Bank 2 Sensor 2
- Heated Oxygen Sensor Bank 2 Sensor 2 harness is open shorted
- Heated Oxygen Sensor Bank 2 Sensor 2 circuit poor electrical connection
- Heated Oxygen Sensor Bank 2 Sensor 2 circuit fuse
- Faulty Engine Control Module (ECM)
How to Fix the DTC P0058 Buick?
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.
Code Tech Notes
What is the Cost to Diagnose the Code?
Labor: 1.0
To diagnose the P0058 Buick 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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Frequently Asked Questions about P0058 Buick Code
What does OBDII code P0058 mean on a Buick?
P0058 indicates a high voltage issue in the heater control circuit for the oxygen sensor (HO2S) located on Bank 2, Sensor 2.
What are the symptoms of code P0058 in a Buick?
Common symptoms include an illuminated Check Engine Light, possible engine performance issues, and failed emissions tests.
What causes code P0058 in a Buick?
Possible causes include a faulty oxygen sensor, damaged wiring or connectors in the heater circuit, a failed PCM, or a short to power in the circuit.
How do I diagnose code P0058 on my Buick?
Start by inspecting the wiring and connectors for damage or corrosion. Then, test the oxygen sensor heater circuit for proper resistance and check for voltage issues.
Can I drive my Buick with a P0058 code?
While the vehicle may still be drivable, it’s not recommended to ignore the code, as it can affect fuel efficiency and emissions.
How much does it cost to fix a P0058 code on a Buick?
Repair costs vary depending on the cause but typically range from $150 to $400, including parts and labor for replacing the oxygen sensor or repairing wiring.
How do I fix code P0058 on a Buick?
Repairs may involve replacing the oxygen sensor, repairing damaged wiring or connectors, or addressing a PCM issue if necessary.
Is code P0058 specific to certain Buick models?
No, P0058 can appear on any Buick model equipped with OBDII diagnostics and a heated oxygen sensor.
Can a bad oxygen sensor cause code P0058 on a Buick?
Yes, a faulty oxygen sensor is one of the most common causes of this code.
Will clearing the code P0058 fix the issue on my Buick?
Clearing the code may turn off the Check Engine Light temporarily, but unless the underlying issue is resolved, the code will likely return.
Discuss the causes and fixes for P0058 Buick OBDII Code
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