AutoCodes – Chevrolet – P182C Chevrolet

P182C Chevrolet 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 Chevrolet 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.

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Code Popularity 2,863

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

What does this mean?

What are the Possible Causes of the DTC P182C Chevrolet?

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 Chevrolet?

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 Chevrolet 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 Chevrolet code?

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

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Information for Specific Chevrolet Models

P182C 2014 Chevrolet Silverado — Internal Mode Switch 'B' Circuit High Voltage
P182C 2015 Chevrolet Silverado — Internal Mode Switch 'B' Circuit High Voltage
P182C 2016 Chevrolet Silverado — Internal Mode Switch 'B' Circuit High Voltage
P182C 2017 Chevrolet Silverado — Internal Mode Switch 'B' Circuit High Voltage
P182C 2018 Chevrolet Silverado — Internal Mode Switch 'B' Circuit High Voltage

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 Chevrolet Code

1. What are the common symptoms of OBDII code P182C in a Chevrolet related to the Internal Mode Switch 'B' Circuit High Voltage?

- Common symptoms include issues with shifting gears, the transmission not engaging properly, and the vehicle going into limp mode.

2. What can cause the Internal Mode Switch 'B' Circuit High Voltage code P182C to trigger in a Chevrolet?

- Potential causes can include a faulty internal mode switch, wiring issues, a defective transmission control module, or a problem with the shift solenoids.

3. How serious is the OBDII code P182C related to the Internal Mode Switch 'B' Circuit High Voltage in a Chevrolet?

- This code should be addressed promptly as it can lead to transmission shifting problems and potential safety hazards while driving.

4. Can a DIY enthusiast repair OBDII code P182C in a Chevrolet related to the Internal Mode Switch 'B' Circuit High Voltage?

- While some DIYers may be able to diagnose and repair simpler issues like wiring problems, it is recommended to consult a professional for proper diagnosis and repair of this code.

5. Are there any quick tips for troubleshooting OBDII code P182C in a Chevrolet?

- Quick tips include checking the wiring harness for any visible damage, ensuring the internal mode switch is functioning correctly, and scanning for any other related trouble codes.

6. How can I prevent OBDII code P182C from appearing in my Chevrolet due to the Internal Mode Switch 'B' Circuit High Voltage issue?

- Regular maintenance, such as checking for transmission fluid leaks, keeping the transmission system in good condition, and addressing any warning signs promptly, can help prevent this code from appearing.

7. Is it safe to continue driving with OBDII code P182C triggered in a Chevrolet?

- It is not recommended to drive with this code triggered, as it can lead to potential transmission problems and safety issues while on the road.

8. How much does it typically cost to repair OBDII code P182C related to the Internal Mode Switch 'B' Circuit High Voltage in a Chevrolet?

- Repair costs can vary depending on the root cause of the issue, but it is advisable to budget for diagnostic fees, replacement parts, and labor costs.

9. Will resetting the OBDII system clear the P182C code in a Chevrolet?

- While resetting the system may temporarily clear the code, it is essential to address the underlying issue causing the code to prevent it from reoccurring.

10. Can a professional scanner tool help diagnose OBDII code P182C in a Chevrolet more accurately?

- Yes, using a professional scanner tool can provide more detailed information about the specific transmission-related issues causing the Internal Mode Switch 'B' Circuit High Voltage code to help pinpoint the problem accurately.