C158C 2014 GMC Sierra Code - Steering Assist Hydraulic Pressure Out of Range
Quick Answer
The Active Hydraulic Assist Power Steering Control Module uses a pressure sensor to measure the hydraulic pressure in the left and right chambers of steering gear. Common causes include Faulty Steering Gear Pressure Sensor, Steering Gear Pressure Sensor harness is open or shorted, Steering Gear 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
- C158C 2014 GMC Sierra indicates Steering Assist Hydraulic Pressure Out of Range.
- Common causes
- Common causes include Faulty Steering Gear Pressure Sensor, Steering Gear Pressure Sensor harness is open or shorted, Steering Gear 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.
Code C158C 2014 GMC Sierra Description
What are the Possible Causes of the DTC C158C 2014 GMC Sierra?
- Faulty Steering Gear Pressure Sensor
- Steering Gear Pressure Sensor harness is open or shorted
- Steering Gear Pressure Sensor circuit poor electrical connection
- Faulty Power Steering Control Module
How to Fix the DTC C158C 2014 GMC Sierra?
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 C158C 2014 GMC Sierra 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 C158C 2014 GMC Sierra code?
Need more information on how to fix the C158C 2014 GMC Sierra code? Get Access to Factory Service Manuals
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Frequently Asked Questions about C158C 2014 GMC Sierra Code
1. What are the common symptoms of OBDII code C158C in a 2014 GMC Sierra related to Steering Assist Hydraulic Pressure Out of Range?
The common symptoms include difficulty steering, stiff steering wheel, steering wheel vibrations, and a warning light on the dashboard.
2. What are the possible causes of OBDII code C158C in a 2014 GMC Sierra?
Possible causes include a malfunctioning power steering pump, low power steering fluid levels, a faulty steering angle sensor, or issues with the power steering control module.
3. How can I diagnose the Steering Assist Hydraulic Pressure Out of Range issue in my 2014 GMC Sierra?
Diagnosing this issue involves checking the power steering fluid levels, inspecting the power steering pump for any leaks or damage, and using an OBDII scanner to read the trouble codes.
4. Can I continue driving my 2014 GMC Sierra with OBDII code C158C present?
It is not recommended to continue driving with this code present, as it may affect the steering performance of your vehicle and potentially lead to safety issues.
5. How can I repair OBDII code C158C in my 2014 GMC Sierra?
Repair options may include replacing the power steering pump, topping up power steering fluid, recalibrating the steering angle sensor, or reprogramming the power steering control module.
6. Is it safe to reset the OBDII code C158C in my 2014 GMC Sierra without addressing the underlying issue?
Resetting the code without addressing the root cause may temporarily clear the warning light, but the problem will likely resurface, affecting the steering performance of your vehicle.
7. Are there any preventive maintenance tips to avoid OBDII code C158C in a 2014 GMC Sierra?
Regularly checking power steering fluid levels, addressing any leaks promptly, and following the manufacturer's recommended maintenance schedule for the power steering system can help prevent this issue.
8. Can extreme weather conditions contribute to triggering OBDII code C158C in a 2014 GMC Sierra?
Extreme temperatures, especially cold weather, can sometimes exacerbate power steering issues, leading to the Steering Assist Hydraulic Pressure Out of Range code.
9. How long does it typically take to repair OBDII code C158C in a 2014 GMC Sierra?
The repair time can vary depending on the exact cause of the issue, but it may take a few hours to a full day to diagnose and address the problem effectively.
10. Should I take my 2014 GMC Sierra to a professional mechanic for OBDII code C158C repair?
Given the complexity of power steering systems and the safety implications of steering issues, it is advisable to seek assistance from a qualified mechanic to diagnose and repair OBDII code C158C in your GMC Sierra.
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