AutoCodes – Chevrolet – P182D 2015 Chevrolet Silverado

P182D 2015 Chevrolet Silverado Code - Internal Mode Switch 'P' 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: P182D 2015 Chevrolet Silverado indicates Internal Mode Switch 'P' 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 181

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 P182D 2015 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 P signal circuit voltage is greater than 2.38 V, for 1.75 s.

OBDII Code P182D 2015 Chevrolet Silverado - Internal Mode Switch 'P' Circuit High Voltage - AutoCodes.com — P182D 2015 Chevrolet Silverado Code - Internal Mode Switch 'P' Circuit High Voltage

What does this mean?

What are the Possible Causes of the DTC P182D 2015 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 P182D 2015 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 P182D 2015 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 P182D 2015 Chevrolet Silverado code?

Need more information on how to fix the P182D 2015 Chevrolet Silverado code? Get Access to Factory Service Manuals

Need Help with the Code?

Get the P182D 2015 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 P182D 2015 Chevrolet Silverado Code

What does the OBDII code P182D mean for a 2015 Chevrolet Silverado?

The code P182D indicates that there is a problem with the Internal Mode Switch 'P' circuit, specifically that it is experiencing high voltage.

What are the common symptoms associated with code P182D?

Common symptoms may include issues with shifting, the check engine light being illuminated, and possible transmission performance problems.

What could cause the P182D code to trigger in a Silverado?

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

How can I diagnose the P182D code?

To diagnose the code, check the wiring and connectors for damage, test the internal mode switch for proper operation, and use a scan tool to verify the code and other related codes.

What are some potential repairs for the P182D code?

Repairs may involve replacing the internal mode switch, repairing or replacing damaged wiring or connectors, or updating the transmission control module software.

Will driving with code P182D cause further damage to my Silverado?

While it may not cause immediate damage, driving with this code can lead to poor shifting and transmission performance, which could potentially result in more serious issues if not addressed.

Is it safe to drive my Silverado with the P182D code?

It is generally not recommended to drive the vehicle until the issue is resolved, as it could affect transmission performance and safety.

How can I reset the P182D code after repairs?

After making the necessary repairs, you can reset the code using an OBDII scanner or by disconnecting the vehicle's battery for a few minutes.

Should I consult a professional mechanic for code P182D?

Yes, if you are not experienced with automotive diagnostics and repairs, it is advisable to consult a professional mechanic to ensure accurate diagnosis and repair.