AutoCodes – GMC – P182F 2016 GMC Sierra

P182F 2016 GMC Sierra Code - Internal Mode Switch 'C' Circuit High Voltage

Quick Answer

The internal mode switch indicates the Transmission Control Module (TCM) which gear position the vehicle operator has selected. Common causes include Faulty Transmission Internal Mode Switch, Transmission Internal Mode Switch harness is open or shorted, Transmission Internal Mode Switch 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: P182F 2016 GMC Sierra indicates Internal Mode Switch 'C' Circuit High Voltage.
Common causes: Common causes include Faulty Transmission Internal Mode Switch, Transmission Internal Mode Switch harness is open or shorted, Transmission Internal Mode Switch 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 186

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 Mar 23, 2024

Description
Possible Causes
How To Fix
Cost to Diagnose
FAQs
Comments
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Code P182F 2016 GMC Sierra Description

The internal mode switch indicates the Transmission Control Module (TCM) which gear position the vehicle operator has selected. The internal mode switch consists of 5 separate hall effect switches. Each hall effect switch is supplied with a 9 V reference circuit and a signal circuit from the TCM. Each signal circuit for each gear selector position will have either a voltage reading of 0.70–0.96 V indicating On or 1.68–2.38 V indicating Off. The voltage values on each internal mode switch circuit will change and are dependent on the position of the gear selector. The state of each internal mode switch A/B/C/P/S signal circuit is displayed on the scan tool. The Diagnostic Trouble Code (DTC) will be set when the TCM has detected the internal mode switch C signal circuit voltage is greater than 2.38 V, for 1.75 s.

OBDII Code P182F 2016 GMC Sierra - Internal Mode Switch 'C' Circuit High Voltage - AutoCodes.com — P182F 2016 GMC Sierra Code - Internal Mode Switch 'C' Circuit High Voltage

What does this mean?

What are the Possible Causes of the DTC P182F 2016 GMC Sierra?

Faulty Transmission Internal Mode Switch
Transmission Internal Mode Switch harness is open or shorted
Transmission Internal Mode Switch circuit poor electrical connection
Faulty Transmission Control Module (TCM)

How to Fix the DTC P182F 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 P182F 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 P182F 2016 GMC Sierra code?

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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 2016 GMC Sierra Code

1. What are the common symptoms of OBDII code P182F in a 2016 GMC Sierra?

The common symptoms of OBDII code P182F, Internal Mode Switch 'C' Circuit High Voltage, in a 2016 GMC Sierra may include issues with shifting gears, illuminated Check Engine light, and difficulty engaging the transmission.

2. What are the possible causes of OBDII code P182F in a 2016 GMC Sierra?

Possible causes of OBDII code P182F in a 2016 GMC Sierra include a faulty internal mode switch, damaged wiring or connectors in the circuit, or issues with the transmission control module.

3. How can I diagnose OBDII code P182F in my 2016 GMC Sierra?

Diagnosing OBDII code P182F in a 2016 GMC Sierra involves using a diagnostic scanner to retrieve the trouble codes, conducting a visual inspection of the internal mode switch and its circuit, and testing the switch for proper operation.

4. Can I continue driving my 2016 GMC Sierra with OBDII code P182F present?

It is not recommended to continue driving your 2016 GMC Sierra with OBDII code P182F present, as it can lead to further damage to the transmission and potentially compromise vehicle safety.

5. How can I repair OBDII code P182F in my 2016 GMC Sierra?

Repairing OBDII code P182F in a 2016 GMC Sierra involves replacing the internal mode switch if found faulty, repairing any damaged wiring or connectors in the circuit, and clearing the trouble codes with a diagnostic scanner.

6. Is OBDII code P182F a common issue in 2016 GMC Sierra vehicles?

While OBDII code P182F, Internal Mode Switch 'C' Circuit High Voltage, is not extremely common in 2016 GMC Sierra vehicles, it can still occur due to various factors like component wear or electrical issues.

7. Can a DIY enthusiast fix OBDII code P182F in a 2016 GMC Sierra?

DIY enthusiasts with the necessary tools and knowledge may be able to diagnose and repair OBDII code P182F in a 2016 GMC Sierra, but it is recommended to seek professional help for accurate diagnosis and proper repair.

8. Will resetting the Check Engine light resolve OBDII code P182F in my 2016 GMC Sierra?

Simply resetting the Check Engine light will not resolve OBDII code P182F in a 2016 GMC Sierra. The underlying issue causing the trouble code must be diagnosed and repaired to prevent it from reoccurring.

9. How much can I expect to pay for repairing OBDII code P182F in my 2016 GMC Sierra at a dealership?

The cost of repairing OBDII code P182F in a 2016 GMC Sierra at a dealership can vary depending on the specific issue, parts needed, and labor costs, but it is advisable to budget for a few hundred dollars.

10. Are there any preventive measures to avoid OBDII code P182F in a 2016 GMC Sierra?

To prevent OBDII code P182F in a 2016 GMC Sierra, regular maintenance checks, addressing any transmission-related issues promptly, and ensuring proper wiring connections can help reduce the risk of encountering this trouble code.