AutoCodes – Chevrolet – P182B 2017 Chevrolet Silverado

P182B 2017 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 2017 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 285

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 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 B signal circuit voltage is less than 0.7 V, for 1.75 s.

OBDII Code P182B 2017 Chevrolet Silverado - Internal Mode Switch 'B' Circuit Low Voltage - AutoCodes.com — P182B 2017 Chevrolet Silverado Code - Internal Mode Switch 'B' Circuit Low Voltage

What does this mean?

What are the Possible Causes of the DTC P182B 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 P182B 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 P182B 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 P182B 2017 Chevrolet Silverado code?

Need more information on how to fix the P182B 2017 Chevrolet Silverado code? Get Access to Factory Service Manuals

Need Help with the Code?

Get the P182B 2017 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 2017 Chevrolet Silverado Code

1. What does the OBDII code P182B mean on a 2017 Chevrolet Silverado?

The code P182B indicates an issue with the Internal Mode Switch 'B' circuit, specifically low voltage detected in the circuit.

2. What are the common symptoms of the P182B code?

Common symptoms include difficulty shifting gears, the transmission stuck in one gear, or the vehicle going into limp mode.

3. What causes the P182B code to appear?

The most common causes are faulty wiring or connectors in the Internal Mode Switch 'B' circuit, a defective mode switch, or a malfunctioning transmission control module (TCM).

4. How can I diagnose the P182B code?

Start by checking the wiring and connectors for damage or corrosion, testing the Internal Mode Switch for proper function, and using a scan tool to confirm the voltage readings from the circuit.

5. Can I drive my 2017 Chevrolet Silverado with the P182B code?

It is possible to drive, but it is not recommended as it could result in further damage to the transmission or unsafe driving conditions.

6. How do I repair the P182B code?

Repairs may include fixing or replacing damaged wiring, cleaning or reconnecting corroded connectors, or replacing the faulty Internal Mode Switch.

7. What tools are needed to fix the P182B code?

You will need a multimeter to test voltage, a scan tool to read and clear codes, and basic hand tools for repairs.

8. How much does it cost to fix the P182B code?

Repair costs can vary, but replacing the Internal Mode Switch typically costs between $150 and $400, depending on labor and part prices.

9. Can a low battery cause the P182B code?

Yes, a weak or failing battery can contribute to low voltage issues, potentially triggering this code.

10. Does the P182B code always mean the Internal Mode Switch is faulty?

Not necessarily. It could also be caused by wiring problems, connector issues, or a fault in the transmission control module. Proper diagnosis is essential.