Easy one-page printout for the garage or repair shop
This summary uses the existing diagnostic information shown in full below.
The car's computer is saying that a part of the engine that checks how clean the air is (an oxygen sensor) isn't getting enough power to work properly.
The O2 sensor heater circuit is responsible for heating the oxygen sensor to ensure it operates efficiently. A low voltage reading indicates that the sensor isn't receiving enough electrical power.
P1152 indicates that the power supply to the heater circuit of the oxygen sensor on Bank 2 Sensor 1 is below the expected range. This can affect the sensor's ability to accurately measure the oxygen levels in the exhaust gases, which can impact engine performance and emissions.
• Check Engine Light is on
• Increased fuel consumption
• Failed emissions test
• Faulty oxygen sensor
• Blown fuse for the O2 sensor heater circuit
• Damaged wiring or connectors in the sensor circuit
OBD-II: On-Board Diagnostics, second generation, a standardized system for self-diagnostics in vehicles.
O2 Sensor: Oxygen sensor, a device that measures the oxygen level in the exhaust gases.
• Use an OBD-II scanner to confirm the code P1152.
• Inspect the wiring and connectors for damage or corrosion.
• Check the fuse for the O2 sensor heater circuit.
• Replace the faulty oxygen sensor.
• Repair or replace damaged wiring or connectors.
• Replace the blown fuse.
• OBD-II scanner
• Multimeter
• Socket set
$150 - $300
Moderate
• Ford Explorer
• Toyota Camry
• Chevrolet Silverado
• Regularly inspect and maintain the vehicle's electrical system.
• Replace oxygen sensors at recommended intervals.
• Avoid driving through deep water which can damage electrical components.
Sensor Issue
• Address the issue promptly to avoid further engine problems.
• Consult a professional mechanic if unsure about the repair process.
Oxygen sensors may be covered under the vehicle's emissions warranty.
Oxygen sensor heater circuit issues have been common in many vehicles, especially as they age and components wear out.
Moderate – While the vehicle may still be drivable, addressing the issue promptly can prevent further damage and ensure optimal performance.
Driving with a malfunctioning oxygen sensor can lead to increased emissions, which may violate local environmental regulations.
• Engine at operating temperature
• Vehicle in closed-loop operation
The oxygen sensor for Bank 2 Sensor 1 is typically located on the exhaust manifold of the engine on the side opposite to Cylinder 1.
Q: Can I drive my car with a P1152 code?
A: While you can drive with this code, it's best to fix it soon to avoid increased fuel consumption and potential engine damage.
Q: How do I know if my oxygen sensor is bad?
A: Common signs include a check engine light, poor fuel economy, and a rough idle.
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Useful when diagnosis points toward damaged wiring, corroded terminals, or connector repairs.
Useful if diagnosis points toward damaged connectors, wiring, or terminal repairs.
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Fitment Required · Vehicle-fitment part
Relevant when the code or supporting diagnostics point toward upstream or downstream oxygen-sensor faults.
This code family often involves upstream or downstream oxygen-sensor diagnosis.
Verify exact sensor position and vehicle fitment before buying.
View options on AmazonThese parts may be related to this fault category, but a code by itself does not confirm exact fitment or guarantee that replacing a part will solve the problem.