What Does P0058 Mean?
The PCM has detected high voltage in the heater circuit of the Bank 2, Sensor 2 heated oxygen sensor. The downstream sensor's heater circuit is showing excessive voltage or current, indicating a possible short to power in the wiring or an internally shorted heater element. The driver will see a check engine light with no significant driveability symptoms from this downstream monitoring sensor.
Common Causes
35%
Internally shorted O2 sensor heater element
30%
Short to battery voltage in the heater control wiring
20%
Corroded connector causing cross-pin contact between power and control circuits
15%
PCM heater driver circuit stuck on
Diagnostic Steps
1
Disconnect the Bank 2 Sensor 2 O2 sensor and measure heater resistance — anything below 2 ohms suggests an internal short. Normal is 3–15 ohms.
2
With the sensor disconnected and KOEO, check for voltage on the PCM control/ground wire — it should read near 0V. Any significant voltage indicates a short to power.
3
Inspect the connector for water intrusion, corrosion, or melted housing. Check for signs of cross-pin shorts between the power supply and control pins.
4
Trace the harness for chafing or pinching, especially where it routes near exhaust components, suspension, or frame rails.
5
If all testing is inconclusive, use a current clamp on the heater circuit to verify actual current draw versus specification.
Estimated Repair Cost
$100 - $350
Parts + labor, varies by vehicle and location
The PCM has detected high voltage in the heater circuit of the Bank 2, Sensor 2 heated oxygen sensor. The downstream sensor's heater circuit is showing excessive voltage or current, indicating a possible short to power in the wiring or an internally shorted heater element. The driver will see a chec...
The most common cause of P0058 (Heated Oxygen Sensor (HO2S) Heater Circuit High Voltage Bank 2 Sensor 2) is: Internally shorted O2 sensor heater element
Typical repair costs for P0058 range from $100 to $350, depending on the vehicle, location, and whether you do it yourself or go to a shop.
Generally safe to drive. The primary concern is electrical — a short-circuit condition can overheat wiring or blow fuses, potentially affecting other circuits on the same fuse. If the O2 heater fuse blows, multiple O2 sensor heaters may stop working, impacting fuel management. Repair at your earliest convenience.
Start by connecting an OBD2 scanner to read the code and any freeze frame data. Then follow the diagnostic steps specific to P0058 to identify the root cause.
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Quick Info
Category
Powertrain
System
Emissions / Exhaust
Difficulty
Type
Generic (SAE)
Recommended Tools
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