Engine-CodesChevrolet – P182F 2018 Chevrolet Silverado

P182F 2018 Chevrolet Silverado Code - Internal Mode Switch 'C' Circuit High Voltage

Quick Answer

The diagnostic trouble code P182F for a 2018 Chevrolet Silverado indicates an issue with the Internal Mode Switch 'C' Circuit High Voltage. Common causes include Faulty Internal Mode Switch, Damaged wiring or connectors, Issues with the transmission control module. 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
P182F 2018 Chevrolet Silverado indicates Internal Mode Switch 'C' Circuit High Voltage.
Common causes
Common causes include Faulty Internal Mode Switch, Damaged wiring or connectors, Issues with the transmission control module.
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.
Table of contents Created and updated by William Orellana on Sep 13, 2024
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Code P182F 2018 Chevrolet Silverado Description

The diagnostic trouble code P182F for a 2018 Chevrolet Silverado indicates an issue with the Internal Mode Switch 'C' Circuit High Voltage. The Internal Mode Switch (IMS) is a component of the transmission control system that helps the vehicle's computer determine the current gear selection. In this case, the 'C' circuit is reporting a high voltage, which can disrupt the communication between the transmission and the engine control module.

OBDII Code P182F 2018 Chevrolet Silverado - Internal Mode Switch 'C' Circuit High Voltage
P182F 2018 Chevrolet Silverado Code - Internal Mode Switch 'C' Circuit High Voltage

Common Causes of P182F 2018 Chevrolet Silverado

  1. Faulty Internal Mode Switch
  2. Damaged wiring or connectors
  3. Issues with the transmission control module
  4. Corrosion in the circuit
  5. Electrical interference or short circuits

Symptoms of P182F 2018 Chevrolet Silverado

  1. Harsh or delayed shifting
  2. Inability to shift gears
  3. Check Engine Light illuminated
  4. Reduced fuel efficiency
  5. Transmission slipping

How to Fix P182F 2018 Chevrolet Silverado

  1. Begin by diagnosing the specific cause of the high voltage in the 'C' circuit using a diagnostic scanner.
  2. Inspect the Internal Mode Switch for any signs of damage or malfunction and replace if necessary.
  3. Check the wiring and connectors for any corrosion or damage, repairing or replacing as needed.
  4. Test the transmission control module to ensure it is functioning correctly and reprogram if necessary.
  5. Clear the trouble code from the vehicle's computer and test drive to confirm the issue has been resolved.

Cost to Fix P182F 2018 Chevrolet Silverado

The cost of repairing the Internal Mode Switch 'C' Circuit High Voltage issue can vary depending on the specific cause of the problem and the labor rates in your area. On average, you can expect to pay between $200 and $500 for parts and labor. Keep in mind that diagnostic time and labor rates at auto repair shops can vary, so it's recommended to get quotes from multiple shops to ensure you're getting a fair price.

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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 P182F 2018 Chevrolet Silverado Code

1. What does the OBDII code P182F mean on a 2018 Chevrolet Silverado?

The P182F code indicates a high voltage issue in the Internal Mode Switch 'C' circuit, which is part of the transmission range sensor system.

2. What are the common symptoms of code P182F in a 2018 Chevrolet Silverado?

Symptoms may include erratic shifting, the transmission stuck in one gear, reduced engine performance, or the check engine light illuminating.

3. What causes the P182F code to appear on a 2018 Chevrolet Silverado?

Common causes include a faulty internal mode switch, damaged wiring or connectors in the switch circuit, or a malfunctioning transmission control module (TCM).

4. Can I drive my 2018 Chevrolet Silverado with the P182F code?

It is not recommended to drive with this code active, as it can affect transmission performance and potentially cause further damage.

5. How is the P182F code diagnosed on a 2018 Chevrolet Silverado?

Diagnosis involves scanning the vehicle’s computer for codes, inspecting the wiring and connectors in the Internal Mode Switch 'C' circuit, and testing the switch for proper operation.

6. How do you fix the P182F code on a 2018 Chevrolet Silverado?

Repairs may include replacing the internal mode switch, repairing or replacing damaged wiring or connectors, or reprogramming or replacing the TCM if necessary.

7. Is the P182F code covered under warranty for a 2018 Chevrolet Silverado?

It may be covered under the powertrain warranty, depending on the vehicle's mileage and warranty status. Check with your dealership for details.

8. Can a weak battery cause the P182F code on a 2018 Chevrolet Silverado?

A weak or failing battery can sometimes contribute to electrical issues, but it is not a common cause for this specific code.

9. How much does it cost to fix the P182F code on a 2018 Chevrolet Silverado?

The repair cost can vary but may range from $200 to $800, depending on whether the internal mode switch, wiring, or TCM needs repair or replacement.

10. Can I clear the P182F code without fixing the problem?

Clearing the code without addressing the root cause is not recommended, as the issue will likely reoccur and could lead to further damage.

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