AutoCodes – Generic – C0079

C0079 Code - Variable Effort Steering

Quick Answer

The Anti-Lock Brake System (ABS) Module monitors the Power Steering Pressure Sensor. Common causes include Faulty Power Steering Pressure Sensor, Power Steering Pressure Sensor harness is open or shorted, Power Steering Pressure Sensor 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: C0079 indicates Variable Effort Steering.
Common causes: Common causes include Faulty Power Steering Pressure Sensor, Power Steering Pressure Sensor harness is open or shorted, Power Steering Pressure Sensor 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 2,848

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 May 04, 2020

Description
Possible Causes
How To Fix
Cost to Diagnose
FAQs
Comments
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Code C0079 Description

The Anti-Lock Brake System (ABS) Module monitors the Power Steering Pressure Sensor. The ABS Module sets the OBDII code when the Power Steering Pressure Sensor is not to factory specifications.

OBDII Code C0079 - Variable Effort Steering - AutoCodes.com — C0079 Code - Variable Effort Steering

What does this mean?

What are the Possible Causes of the DTC C0079?

Faulty Power Steering Pressure Sensor
Power Steering Pressure Sensor harness is open or shorted
Power Steering Pressure Sensor circuit poor electrical connection

How to Fix the DTC C0079?

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 is the Cost to Diagnose the Code?

Labor: 1.0

To diagnose the C0079 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.

Need more information about the C0079 code?

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Need Help with the Code?

Get the C0079 code diagnosed by a professional: Find a repair shop in your area

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 C0079 Code

1. What are the common symptoms of OBDII code C0079 (Variable Effort Steering)?

- Common symptoms include difficulty steering, a change in steering effort while driving, and a warning light on the dashboard.

2. What are the possible causes of OBDII code C0079?

- Possible causes include a faulty variable effort steering module, issues with the steering angle sensor, wiring problems, or a malfunction in the power steering system.

3. How can I diagnose the cause of OBDII code C0079?

- Diagnosis typically involves using a professional OBDII scanner to retrieve the code, inspecting the variable effort steering components, checking the wiring for any damage, and verifying the steering angle sensor's readings.

4. Can I still drive my vehicle with OBDII code C0079 present?

- It is not recommended to continue driving your vehicle with this code present, as it can affect the steering performance and potentially compromise safety. It's best to address the issue promptly.

5. Are there any DIY repair tips for OBDII code C0079?

- DIY repair for this code may involve checking and cleaning the connections to the variable effort steering module, ensuring the steering angle sensor is properly calibrated, and inspecting the power steering system for leaks or malfunctions.

6. How much does it typically cost to repair OBDII code C0079?

- Repair costs can vary depending on the underlying cause and the extent of the issue. It's recommended to consult a professional mechanic for an accurate diagnosis and repair estimate.

7. Can a faulty variable effort steering module cause OBDII code C0079?

- Yes, a malfunctioning variable effort steering module is a common cause of OBDII code C0079. It can result in erratic steering behavior and trigger the diagnostic trouble code.

8. Is it safe to reset the OBDII code C0079 without addressing the underlying issue?

- While you can clear the code temporarily, it is not recommended to ignore the underlying problem. Resetting the code without fixing the root cause can lead to ongoing steering issues and potential safety hazards.

9. How important is it to address OBDII code C0079 promptly?

- It is crucial to address OBDII code C0079 promptly to ensure the safe operation of your vehicle. Ignoring steering-related issues can lead to unpredictable steering behavior and compromise driving safety.

10. Can OBDII code C0079 be intermittent or permanent?

- OBDII code C0079 can be either intermittent or permanent, depending on the underlying cause. Intermittent issues may come and go, while permanent problems persist until resolved.