AutoCodes – Chevrolet – P182F 2017 Chevrolet Silverado

P182F 2017 Chevrolet Silverado 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 2017 Chevrolet Silverado 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 273

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 2017 Chevrolet Silverado 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 2017 Chevrolet Silverado - Internal Mode Switch 'C' Circuit High Voltage - AutoCodes.com — P182F 2017 Chevrolet Silverado Code - Internal Mode Switch 'C' Circuit High Voltage

What does this mean?

What are the Possible Causes of the DTC P182F 2017 Chevrolet Silverado?

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 2017 Chevrolet Silverado?

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 2017 Chevrolet Silverado 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 2017 Chevrolet Silverado code?

Need more information on how to fix the P182F 2017 Chevrolet Silverado code? Get Access to Factory Service Manuals

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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 2017 Chevrolet Silverado Code

1. What does the OBDII code P182F mean on a 2017 Chevrolet Silverado?

P182F indicates an issue with the Internal Mode Switch (IMS) 'C' circuit detecting high voltage, which is related to the vehicle's transmission mode selection system.

2. What are the common symptoms of code P182F in a 2017 Silverado?

Symptoms may include the transmission being stuck in one gear, inability to shift modes, the check engine light illuminating, or erratic shifting behavior.

3. What causes the P182F code to be triggered?

Common causes include wiring issues such as short circuits, a faulty Internal Mode Switch (IMS), corroded or loose electrical connections, or a defective transmission control module (TCM).

4. Is it safe to drive with the P182F code active?

Driving with this code is not recommended, as it can cause transmission performance issues and potentially lead to further damage if not addressed promptly.

5. How do you diagnose the P182F code on a 2017 Silverado?

Diagnosing involves using an OBDII scanner to confirm the code, checking the IMS circuit for proper voltage, inspecting the wiring and connectors, and testing the IMS and TCM functionality.

6. Can a faulty IMS itself cause the P182F code?

Yes, a malfunctioning Internal Mode Switch can directly cause the P182F code by sending incorrect voltage signals to the transmission control module.

7. What are the repair options for resolving the P182F code?

Repairs may include replacing the Internal Mode Switch, fixing damaged or corroded wiring, cleaning or securing electrical connections, or replacing the TCM if necessary.

8. How much does it typically cost to fix the P182F code on a Silverado?

Repair costs vary depending on the issue, but replacing the IMS typically ranges from $200 to $400, while wiring repairs or TCM replacement can cost more.

9. Can clearing the code with a scanner fix the P182F issue?

Clearing the code without addressing the root cause will not fix the issue, and the code is likely to return until the underlying problem is resolved.

10. How can I prevent the P182F code from occurring again?

Regular maintenance, inspecting electrical connections for corrosion, and ensuring proper care of the transmission system can help prevent recurrence of the P182F code.