AutoCodes – Oldsmobile – P0059 Oldsmobile

P0059 Oldsmobile 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 Oldsmobile 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.

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Code Popularity 1,182

How popular is this code, among other codes? Low

Repair Importance Level

Urgent (Diagnose now) (3 / 3)

Repair Difficulty Level

Advanced (Pro) (3 / 3)

What is this?

Table of contents Created and updated by William Orellana on Mar 23, 2024

Description
Possible Causes
How To Fix
Tech Notes
Cost to Diagnose
FAQs
Comments
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Code P0059 Oldsmobile Description

Heated Oxygen Sensors (HO2S) are used for fuel control and post catalyst monitoring. Each HO2S compares the oxygen content of the surrounding air with the oxygen content in the exhaust stream. The HO2S must reach an operating temperature to provide an accurate voltage signal. A heating element inside the HO2S minimizes the time required for the sensors to reach operating temperature. Voltage is provided to the heater by an ignition voltage circuit through a fuse. With the engine running, the ground is provided to the heater by the HO2S heater low control circuit through a low side driver within the Engine Control Module (ECM). The ECM uses Pulse Width Modulation (PWM) to control the HO2S heater operation to maintain a specific HO2S operating temperature range.
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.

OBDII Code P0059 Oldsmobile - HO2S Heater Resistance Bank 2 Sensor 1 - AutoCodes.com — P0059 Oldsmobile Code - HO2S Heater Resistance Bank 2 Sensor 1

What does this mean?

What are the Possible Causes of the DTC P0059 Oldsmobile?

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 Oldsmobile?

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.

What does this mean?

Code Tech Notes

The code means that there is a problem with the heater element circuit of the heated oxygen sensor. The control module monitors how long it takes the sensor to warm up and start sending an adequate signal. The code is set when the sensor is taking too long to warm up. Water getting inside the heated oxygen sensor connector can cause the heated oxygen sensor fuse to blow. Before replacing the sensor, check for the condition of the heated oxygen sensor fuse and connectors. If the fuse and connector are OK, replacing the O2 Sensor usually takes care of the problem.

What is the Cost to Diagnose the Code?

Labor: 1.0

To diagnose the P0059 Oldsmobile 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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About the author: William Orellana is a Master Mechanic and Mechanical Engineer with over 30 years of experience diagnosing and repairing vehicles. Learn more about his background.

Frequently Asked Questions about P0059 Oldsmobile Code

1. What are the common symptoms of OBDII code P0059 on an Oldsmobile?

- Common symptoms of code P0059 may include poor engine performance, decreased fuel efficiency, rough idling, and the illumination of the check engine light.

2. What does the OBDII code P0059 for an Oldsmobile indicate?

- OBDII code P0059 refers to an issue with the heater resistance of the oxygen sensor (HO2S) in Bank 2 Sensor 1 on an Oldsmobile.

3. What are the possible causes of OBDII code P0059 on an Oldsmobile?

- Possible causes of code P0059 can include a faulty oxygen sensor, damaged wiring or connectors, a blown fuse, or issues with the engine control module (ECM).

4. How can I diagnose the OBDII code P0059 on my Oldsmobile?

- Diagnosing code P0059 involves using an OBDII scanner to retrieve the code, inspecting the wiring and connectors related to Bank 2 Sensor 1, and testing the oxygen sensor's heater circuit resistance.

5. Is it safe to continue driving with OBDII code P0059 on my Oldsmobile?

- While the vehicle may still be operational with code P0059, it is recommended to address the issue promptly to prevent potential damage to the catalytic converter or other engine components.

6. Can I repair OBDII code P0059 on my Oldsmobile myself?

- Depending on your mechanical skills, you may be able to repair code P0059 yourself by replacing the faulty oxygen sensor, repairing damaged wiring, or addressing any other identified issues.

7. How much does it typically cost to fix OBDII code P0059 on an Oldsmobile?

- The cost of repairing code P0059 can vary based on the specific cause of the issue, but it may range from $100 to $300 for parts and labor if performed at a professional auto repair shop.

8. Will resetting the check engine light clear OBDII code P0059 on my Oldsmobile?

- Resetting the check engine light may temporarily turn it off, but if the underlying issue causing code P0059 is not addressed, the light is likely to come back on once the ECM detects the problem again.

9. How long does it take to fix OBDII code P0059 on an Oldsmobile?

- The time required to fix code P0059 can vary based on the extent of the issue and your repair skills, but a professional mechanic may typically complete the repair within an hour to a few hours.

10. Can a faulty oxygen sensor cause other codes to appear along with P0059 on an Oldsmobile?

- Yes, a faulty oxygen sensor can sometimes trigger related codes such as P0058, P0060, or other oxygen sensor-related trouble codes in addition to code P0059 on an Oldsmobile.