P0059 Saturn Code - HO2S Heater Resistance Bank 2 Sensor 1
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 1, Heated Oxygen Sensor Bank 2 Sensor 1 harness is open shorted, Heated Oxygen Sensor Bank 2 Sensor 1 circuit poor electrical connection. Severity is High - diagnose this code as soon as possible. Driving is not recommended if the warning light is flashing, the engine runs poorly, or safety-related symptoms are present.
- What it means
- P0059 Saturn indicates HO2S Heater Resistance Bank 2 Sensor 1.
- Common causes
- Common causes include Faulty Heated Oxygen Sensor (H2OS) Bank 2 Sensor 1, Heated Oxygen Sensor Bank 2 Sensor 1 harness is open shorted, Heated Oxygen Sensor Bank 2 Sensor 1 circuit poor electrical connection.
- Severity
- High - diagnose this code as soon as possible.
- Can I drive?
- Driving is not recommended if the warning light is flashing, the engine runs poorly, or safety-related symptoms are present.
Code P0059 Saturn Description
The Diagnostic Trouble Code (DTC) will be set when the ECM detects the HO2S heater is not within a specified resistance range at engine start-up.
What are the Possible Causes of the DTC P0059 Saturn?
- Faulty Heated Oxygen Sensor (H2OS) Bank 2 Sensor 1
- Heated Oxygen Sensor Bank 2 Sensor 1 harness is open shorted
- Heated Oxygen Sensor Bank 2 Sensor 1 circuit poor electrical connection
- Heated Oxygen Sensor Bank 2 Sensor 1 circuit fuse
- Faulty Engine Control Module (ECM)
How to Fix the DTC P0059 Saturn?
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 P0059 Saturn 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 P0059 Saturn Code
What does the OBDII code P0059 mean on a Saturn?
P0059 indicates an issue with the heater circuit resistance for the oxygen sensor (HO2S) on Bank 2, Sensor 1, meaning the resistance is out of the expected range.
What are the symptoms of code P0059 on a Saturn?
Common symptoms include an illuminated Check Engine Light, decreased fuel efficiency, rough idling, and potential difficulty passing emissions tests.
What causes the P0059 code on a Saturn?
The most common causes are a faulty oxygen sensor, damaged wiring or connectors, a blown fuse in the heater circuit, or issues with the engine control module (ECM).
How do I diagnose the P0059 code on my Saturn?
Check the oxygen sensor wiring and connectors for damage, test the heater circuit resistance with a multimeter, and confirm the sensor is functioning properly using a scan tool.
Can I drive with the P0059 code on my Saturn?
While the vehicle may still be drivable, prolonged issues with the oxygen sensor can lead to engine performance problems and increased emissions.
How do I fix the P0059 code on a Saturn?
Repairs often include replacing the faulty oxygen sensor, repairing or replacing damaged wiring, or addressing any ECM-related issues.
How much does it cost to fix the P0059 code on a Saturn?
The cost of repair depends on the issue, but replacing a heated oxygen sensor typically ranges from $150 to $300, including parts and labor.
What is Bank 2, Sensor 1 in relation to the P0059 code?
Bank 2 refers to the side of the engine opposite Bank 1 (usually the side without cylinder 1), and Sensor 1 is the upstream sensor located before the catalytic converter.
How can I prevent the P0059 code from appearing on my Saturn?
Regular maintenance, inspecting oxygen sensor wiring, and replacing sensors as recommended by the manufacturer can help prevent this code.
Can a bad oxygen sensor cause other problems if the P0059 code is ignored?
Yes, ignoring a bad oxygen sensor can lead to poor fuel efficiency, increased emissions, and potential long-term engine damage.
Discuss the causes and fixes for P0059 Saturn OBDII Code
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