AutoCodes – Chevrolet – P182B 2016 Chevrolet Silverado

P182B 2016 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 2016 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 348

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 2016 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 2016 Chevrolet Silverado - Internal Mode Switch 'B' Circuit Low Voltage - AutoCodes.com — P182B 2016 Chevrolet Silverado Code - Internal Mode Switch 'B' Circuit Low Voltage

What does this mean?

What are the Possible Causes of the DTC P182B 2016 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 2016 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 2016 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 2016 Chevrolet Silverado code?

Need more information on how to fix the P182B 2016 Chevrolet Silverado code? Get Access to Factory Service Manuals

Need Help with the Code?

Get the P182B 2016 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 2016 Chevrolet Silverado Code

1. What does the OBDII code P182B mean on a 2016 Chevrolet Silverado?

P182B indicates a problem with the Internal Mode Switch (IMS) "B" Circuit, specifically low voltage detected in the circuit.

2. What are the common symptoms of code P182B in a 2016 Chevrolet Silverado?

Symptoms may include the transmission stuck in one gear, irregular shifting, the check engine light illuminated, or a "limp mode" condition.

3. What causes code P182B in a 2016 Chevrolet Silverado?

Common causes include a faulty Internal Mode Switch (IMS), damaged wiring or connectors in the IMS circuit, or a failing transmission control module (TCM).

4. Can I drive my 2016 Chevrolet Silverado with a P182B code?

Driving with a P182B code is not recommended as it can lead to erratic transmission behavior, which may cause further damage or create unsafe driving conditions.

5. How is code P182B diagnosed in a 2016 Chevrolet Silverado?

A mechanic will use a scan tool to verify the code, inspect the IMS and its wiring for damage, and check the voltage and continuity of the circuit.

6. How do you fix code P182B on a 2016 Chevrolet Silverado?

Repairs may involve replacing the Internal Mode Switch, repairing or replacing damaged wiring or connectors, or reprogramming/updating the TCM if needed.

7. How much does it cost to repair a P182B code on a 2016 Chevrolet Silverado?

Repair costs vary but typically range from $150 to $500 depending on whether the issue is with the IMS, wiring, or TCM.

8. Can a low battery cause the P182B code in a 2016 Chevrolet Silverado?

Yes, a weak or failing battery can sometimes cause voltage-related issues, including triggering the P182B code.

9. Is the Internal Mode Switch part of the transmission in a 2016 Chevrolet Silverado?

Yes, the Internal Mode Switch is located inside the transmission and helps the vehicle recognize the gear selector position.

10. Can clearing the P182B code solve the problem in a 2016 Chevrolet Silverado?

Clearing the code without addressing the root cause may temporarily turn off the check engine light, but the issue will likely return. Proper diagnosis and repair are necessary.