C158C 2016 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 2016 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 2016 GMC Sierra Description
What are the Possible Causes of the DTC C158C 2016 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 2016 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 2016 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 2016 GMC Sierra code?
Need more information on how to fix the C158C 2016 GMC Sierra code? Get Access to Factory Service Manuals
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Frequently Asked Questions about C158C 2016 GMC Sierra Code
1. What are the common symptoms of OBDII code C158C on a 2016 GMC Sierra related to Steering Assist Hydraulic Pressure Out of Range?
The common symptoms include stiff or hard steering, excessive noise when turning the steering wheel, and a warning light on the dashboard.
2. What are the possible causes of OBDII code C158C on a 2016 GMC Sierra?
Potential causes may include a malfunctioning power steering pump, low power steering fluid levels, a faulty steering gear, or issues with the power steering control module.
3. How can I diagnose the Steering Assist Hydraulic Pressure Out of Range issue on my 2016 GMC Sierra?
Diagnosis typically involves using a diagnostic scan tool to retrieve the specific trouble code, inspecting the power steering system for leaks or damage, and testing the power steering components for proper functionality.
4. Can I continue driving my 2016 GMC Sierra with OBDII code C158C triggered?
It's not recommended to continue driving your vehicle with this code active, as it can lead to unsafe driving conditions due to compromised steering assistance.
5. How can I repair OBDII code C158C on my 2016 GMC Sierra?
Repair options may involve replacing the power steering pump, repairing any leaks in the power steering system, refilling the power steering fluid, or recalibrating the power steering control module.
6. Is it possible to reset OBDII code C158C on a 2016 GMC Sierra without fixing the underlying issue?
While you can clear the code using a diagnostic scan tool, it's crucial to address the root cause of the problem to prevent the code from reoccurring and ensure safe operation of the vehicle.
7. Are there any safety precautions to consider when working on the power steering system related to OBDII code C158C?
It's important to disconnect the battery before performing any repairs, wear appropriate safety gear, and follow manufacturer guidelines to avoid injury and ensure proper repair procedures.
8. Can extreme weather conditions affect the likelihood of encountering OBDII code C158C on a 2016 GMC Sierra?
Yes, extreme temperatures can impact the power steering system and increase the risk of issues related to hydraulic pressure, leading to the triggering of code C158C.
9. How much does it typically cost to repair OBDII code C158C on a 2016 GMC Sierra?
The cost of repairs can vary depending on the specific issue causing the code, but it's advisable to consult a professional mechanic for an accurate diagnosis and cost estimate.
10. Will fixing OBDII code C158C improve the overall performance and handling of my 2016 GMC Sierra?
Yes, resolving the Steering Assist Hydraulic Pressure Out of Range issue will restore proper steering assistance, improve handling, and ensure the safety and drivability of your vehicle.
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