AutoCodes – Chevrolet – P182C 2018 Chevrolet Silverado

P182C 2018 Chevrolet Silverado Code - Internal Mode Switch 'B' 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: P182C 2018 Chevrolet Silverado indicates Internal Mode Switch 'B' 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.

Save to My Repairs My Repairs

AI answers can be wrong. Verify repairs with testing. Open full chat

Code Popularity 254

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
Add Comment

💬 Need more help? Ask Coddy for instant answers — it's free!

Code P182C 2018 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 B signal circuit voltage is greater than 2.38 V, for 1.75 s.

OBDII Code P182C 2018 Chevrolet Silverado - Internal Mode Switch 'B' Circuit High Voltage - AutoCodes.com — P182C 2018 Chevrolet Silverado Code - Internal Mode Switch 'B' Circuit High Voltage

What does this mean?

What are the Possible Causes of the DTC P182C 2018 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 P182C 2018 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 P182C 2018 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 P182C 2018 Chevrolet Silverado code?

Need more information on how to fix the P182C 2018 Chevrolet Silverado code? Get Access to Factory Service Manuals

Need Help with the Code?

Get the P182C 2018 Chevrolet Silverado code diagnosed by a professional: Find a repair shop in your area

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 P182C 2018 Chevrolet Silverado Code

1. What are the common symptoms of OBDII code P182C in a 2018 Chevrolet Silverado?

The common symptoms of OBDII code P182C in a 2018 Chevrolet Silverado include issues with shifting gears, hesitation or jerking during acceleration, and potentially an illuminated check engine light.

2. What does the Internal Mode Switch 'B' Circuit High Voltage mean in relation to OBDII code P182C?

The Internal Mode Switch 'B' Circuit High Voltage indicates a problem with the circuit in the transmission range sensor, which could affect the vehicle's ability to determine the gear position.

3. What are some possible causes of OBDII code P182C in a 2018 Chevrolet Silverado?

Possible causes of OBDII code P182C in a 2018 Chevrolet Silverado include a faulty internal mode switch, damaged wiring or connectors in the circuit, or issues with the transmission range sensor itself.

4. How can I diagnose OBDII code P182C in my 2018 Chevrolet Silverado?

Diagnosing OBDII code P182C in a 2018 Chevrolet Silverado typically involves using a scan tool to retrieve the trouble codes, checking the internal mode switch and related circuitry for faults, and testing the transmission range sensor for proper operation.

5. Can OBDII code P182C in a 2018 Chevrolet Silverado be fixed without professional help?

While some basic troubleshooting steps can be taken, resolving OBDII code P182C in a 2018 Chevrolet Silverado often requires specialized knowledge and tools, so seeking professional assistance is recommended for an accurate diagnosis and repair.

6. What are the potential risks of ignoring OBDII code P182C in a 2018 Chevrolet Silverado?

Ignoring OBDII code P182C in a 2018 Chevrolet Silverado can lead to further damage to the transmission system, potentially causing more expensive repairs down the line and compromising the vehicle's performance and safety.

7. How much does it typically cost to repair OBDII code P182C in a 2018 Chevrolet Silverado?

The cost of repairing OBDII code P182C in a 2018 Chevrolet Silverado can vary depending on the specific cause of the issue, but it may involve replacing the internal mode switch, repairing wiring or connectors, or addressing other related transmission issues.

8. Are there any preventive measures to avoid OBDII code P182C in a 2018 Chevrolet Silverado?

Regular maintenance, such as checking and replacing transmission fluid as recommended, can help prevent issues like OBDII code P182C in a 2018 Chevrolet Silverado. Additionally, addressing any warning signs promptly can help avoid more serious problems.

9. Can OBDII code P182C in a 2018 Chevrolet Silverado be caused by a simple electrical issue?

Yes, OBDII code P182C in a 2018 Chevrolet Silverado can be caused by simple electrical issues such as a loose or corroded connection, which may be resolved by checking and repairing the wiring and connectors in the affected circuit.

10. Is it safe to continue driving a 2018 Chevrolet Silverado with OBDII code P182C present?

It is not recommended to continue driving a 2018 Chevrolet Silverado with OBDII code P182C present, as it can affect the vehicle's performance and potentially lead to further transmission problems. It is advisable to have the issue diagnosed and repaired as soon as possible.