AutoCodes – Chevrolet – P182B 2018 Chevrolet Silverado

P182B 2018 Chevrolet Silverado Code - Internal Mode Switch 'B' Circuit Low 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: P182B 2018 Chevrolet Silverado indicates Internal Mode Switch 'B' Circuit Low 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 386

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 P182B 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 less than 0.7 V, for 1.75 s.

OBDII Code P182B 2018 Chevrolet Silverado - Internal Mode Switch 'B' Circuit Low Voltage - AutoCodes.com — P182B 2018 Chevrolet Silverado Code - Internal Mode Switch 'B' Circuit Low Voltage

What does this mean?

What are the Possible Causes of the DTC P182B 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 P182B 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 P182B 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 P182B 2018 Chevrolet Silverado code?

Need more information on how to fix the P182B 2018 Chevrolet Silverado code? Get Access to Factory Service Manuals

Need Help with the Code?

Get the P182B 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 P182B 2018 Chevrolet Silverado Code

1. What are the common symptoms of OBDII code P182B in a 2018 Chevrolet Silverado?

- Common symptoms include issues with shifting gears, hesitation during acceleration, and the transmission not engaging properly.

2. What does the Internal Mode Switch 'B' Circuit Low Voltage mean in relation to code P182B?

- The code indicates that there is a low voltage condition detected in the circuit related to the internal mode switch 'B' in the transmission.

3. What are possible causes for the Internal Mode Switch 'B' Circuit Low Voltage code in a 2018 Chevrolet Silverado?

- Possible causes include a faulty internal mode switch, damaged wiring or connectors in the circuit, or issues with the transmission control module.

4. How can I diagnose the Internal Mode Switch 'B' Circuit Low Voltage issue in my 2018 Chevrolet Silverado?

- Diagnosing the problem typically involves using a scan tool to retrieve the fault codes, checking the wiring and connectors for any damage, and testing the internal mode switch for proper operation.

5. Can I still drive my Chevrolet Silverado with OBDII code P182B present?

- It is not recommended to drive your vehicle with this code present, as it can lead to further transmission issues and potentially cause more damage.

6. How can I repair the Internal Mode Switch 'B' Circuit Low Voltage problem in my 2018 Chevrolet Silverado?

- Repair options may include replacing the internal mode switch, repairing any damaged wiring or connectors, or reprogramming the transmission control module.

7. Is it safe to clear the P182B trouble code in my 2018 Chevrolet Silverado without fixing the issue?

- Clearing the code without addressing the underlying problem is not recommended, as the issue may persist and potentially lead to more severe transmission issues.

8. How much does it typically cost to repair OBDII code P182B in a 2018 Chevrolet Silverado?

- The cost of repair can vary depending on the exact cause of the issue, but it may range from a few hundred to over a thousand dollars, including parts and labor.

9. Can a DIY enthusiast fix the Internal Mode Switch 'B' Circuit Low Voltage problem in a 2018 Chevrolet Silverado?

- While some DIY enthusiasts may be able to address simpler aspects of the issue, diagnosing and repairing transmission-related problems often require specialized tools and expertise best left to professional mechanics.

10. How can I prevent OBDII code P182B from occurring in my 2018 Chevrolet Silverado in the future?

- Regular maintenance of your vehicle, including checking the transmission system for any signs of wear or damage, can help prevent issues like the Internal Mode Switch 'B' Circuit Low Voltage code from occurring.