Could worn-out oxygen sensor (typical lifespan 100–200,000 km) cause P0152?

Yes — Worn-out oxygen sensor (typical lifespan 100–200,000 km) is one of the common causes of P0152 (O2 Sensor Circuit High Voltage (Bank 2, Sensor 1)). A scan-tool freeze-frame and circuit check will confirm whether this is the root cause for your vehicle.

Could damaged sensor wiring or connector cause P0152?

Yes — Damaged sensor wiring or connector is one of the common causes of P0152 (O2 Sensor Circuit High Voltage (Bank 2, Sensor 1)). A scan-tool freeze-frame and circuit check will confirm whether this is the root cause for your vehicle.

Could open heater element inside the sensor cause P0152?

Yes — Open heater element inside the sensor is one of the common causes of P0152 (O2 Sensor Circuit High Voltage (Bank 2, Sensor 1)). A scan-tool freeze-frame and circuit check will confirm whether this is the root cause for your vehicle.

Could exhaust leak near the sensor causing false readings cause P0152?

Yes — Exhaust leak near the sensor causing false readings is one of the common causes of P0152 (O2 Sensor Circuit High Voltage (Bank 2, Sensor 1)). A scan-tool freeze-frame and circuit check will confirm whether this is the root cause for your vehicle.

Could contaminated sensor (oil, coolant, or silicone exposure) cause P0152?

Yes — Contaminated sensor (oil, coolant, or silicone exposure) is one of the common causes of P0152 (O2 Sensor Circuit High Voltage (Bank 2, Sensor 1)). A scan-tool freeze-frame and circuit check will confirm whether this is the root cause for your vehicle.

PowertrainWarning

P0152: O2 Sensor Circuit High Voltage (Bank 2, Sensor 1)

An oxygen sensor or its heater circuit isn't reporting correctly. Upstream sensors (sensor 1) feed real-time fuel-trim corrections; downstream sensors (sensor 2) check catalyst efficiency. Bad O2 sensors hurt fuel economy and can trigger false catalyst codes.

Can I keep driving?

Generally safe to keep driving — fix when convenient.

DIY difficulty

moderate

DIY possible with a scan tool and intermediate skills.

Typical cost (Canada)

$200 – $500 CAD

Parts + labor; varies by shop & vehicle.

Common causes

What usually triggers P0152?

1Worn-out oxygen sensor (typical lifespan 100–200,000 km)
2Damaged sensor wiring or connector
3Open heater element inside the sensor
4Exhaust leak near the sensor causing false readings
5Contaminated sensor (oil, coolant, or silicone exposure)

Causes are listed roughly in order of how often they're seen on Canadian independent-shop tickets. Always confirm with a scan-tool freeze-frame and a circuit/sensor check before replacing parts.

Related codes

Other P01xx codes

P0100

Mass or Volume Air Flow Circuit Malfunction

P0101

Mass Airflow (MAF) Sensor Range/Performance

P0102

Mass Airflow Sensor Circuit Low Input

P0103

Mass Airflow Sensor Circuit High Input

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