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P0815 2017 Chevrolet Silverado Code - Upshift Switch Circuit

Quick Answer

The P0815 diagnostic trouble code (DTC) for a 2017 Chevrolet Silverado relates to the Upshift Switch Circuit. Common causes include Faulty upshift switch, Wiring issues or damaged connectors in the upshift switch circuit, Corrosion in the connections related to the upshift switch. 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
P0815 2017 Chevrolet Silverado indicates Upshift Switch Circuit.
Common causes
Common causes include Faulty upshift switch, Wiring issues or damaged connectors in the upshift switch circuit, Corrosion in the connections related to the upshift switch.
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.
What is this?
Table of contents Created and updated by William Orellana on Sep 12, 2024
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Code P0815 2017 Chevrolet Silverado Description

The P0815 diagnostic trouble code (DTC) for a 2017 Chevrolet Silverado relates to the Upshift Switch Circuit. This code is triggered when the Powertrain Control Module (PCM) detects an issue with the upshift switch circuit in the transmission. The upshift switch is responsible for sending signals to the PCM to inform it when the transmission needs to upshift gears. When this circuit malfunctions, it can lead to issues with the transmission's shifting patterns, potentially causing erratic or delayed shifts.

OBDII Code P0815 2017 Chevrolet Silverado - Upshift Switch Circuit
P0815 2017 Chevrolet Silverado Code - Upshift Switch Circuit

Common Causes of P0815 2017 Chevrolet Silverado

  1. Faulty upshift switch
  2. Wiring issues or damaged connectors in the upshift switch circuit
  3. Corrosion in the connections related to the upshift switch
  4. PCM malfunction
  5. Transmission fluid contamination

Symptoms of P0815 2017 Chevrolet Silverado

  1. Erratic shifting behavior
  2. Delayed or harsh upshifts
  3. Illumination of the Check Engine Light
  4. Reduced fuel efficiency
  5. Transmission slipping

How to Fix P0815 2017 Chevrolet Silverado

  1. Begin by conducting a thorough visual inspection of the upshift switch circuit, looking for any visible damage or corrosion. Repair or replace any damaged wiring or connectors.
  2. Test the upshift switch using a multimeter to ensure it is functioning correctly. Replace the switch if necessary.
  3. Clear the DTC from the PCM memory using a scan tool and test drive the vehicle to verify that the issue has been resolved.
  4. If the problem persists, further diagnostic testing may be required to identify the root cause, such as checking the PCM for faults or inspecting the transmission fluid for contamination.

Cost to Fix P0815 2017 Chevrolet Silverado

The cost of repairing the P0815 code on a 2017 Chevrolet Silverado can vary depending on the specific cause of the issue. In general, the cost of parts for this repair can range from $50 to $200, with labor costs typically adding an additional $100 to $200. However, it's important to note that labor rates at auto repair shops can vary significantly based on location, the vehicle's make and model, and the type of engine. Customers should consult with their local repair shop for a more accurate estimate based on their individual circumstances.

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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 P0815 2017 Chevrolet Silverado Code

1. What does the OBDII code P0815 mean for a 2017 Chevrolet Silverado?

P0815 indicates an issue with the upshift switch circuit, which is responsible for signaling gear changes in certain transmission systems.

2. What are the common symptoms of code P0815 in a 2017 Chevrolet Silverado?

Symptoms may include difficulty shifting gears, the transmission remaining in one gear, or the Check Engine Light illuminating.

3. What causes the P0815 code in a Chevrolet Silverado?

Common causes include a faulty upshift switch, damaged wiring or connectors in the circuit, or issues with the transmission control module (TCM).

4. Can I still drive my Silverado with code P0815?

While driving may be possible, continued operation could lead to transmission damage or unsafe driving conditions. It is best to address the issue promptly.

5. How do I diagnose the P0815 code in my Silverado?

Diagnosis involves inspecting the upshift switch, checking for damaged wiring or loose connections, and testing the transmission control module for faults.

6. How can I fix code P0815 on a 2017 Chevrolet Silverado?

Repairs may include replacing the upshift switch, repairing damaged wiring or connectors, or reprogramming or replacing the transmission control module.

7. How much does it cost to repair code P0815 in a Chevy Silverado?

Repair costs vary depending on the cause but can range from $100 for wiring repairs to $500 or more for switch or module replacements.

8. Can a faulty upshift switch cause other transmission issues?

Yes, a malfunctioning upshift switch can lead to improper gear changes, affecting overall transmission performance and drivability.

9. Will clearing the P0815 code solve the problem?

Clearing the code without addressing the underlying issue may temporarily remove the warning but will not fix the problem, and the code will likely return.

10. Do I need special tools to fix code P0815 on a Silverado?

Diagnosing and repairing may require an OBDII scanner, multimeter, and basic automotive tools. Advanced repairs may need professional equipment or expertise.

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