AutoCodes – Chevrolet – P182D 2016 Chevrolet Silverado

P182D 2016 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 2016 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.

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Code Popularity 317

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

OBDII Code P182D 2016 Chevrolet Silverado - Internal Mode Switch 'P' Circuit High Voltage - AutoCodes.com — P182D 2016 Chevrolet Silverado Code - Internal Mode Switch 'P' Circuit High Voltage

What does this mean?

What are the Possible Causes of the DTC P182D 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 P182D 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 P182D 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 P182D 2016 Chevrolet Silverado code?

Need more information on how to fix the P182D 2016 Chevrolet Silverado code? Get Access to Factory Service Manuals

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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 2016 Chevrolet Silverado Code

1. What does OBDII code P182D mean on a 2016 Chevrolet Silverado?

Code P182D indicates an "Internal Mode Switch 'P' Circuit High Voltage," meaning there's an electrical issue in the circuit for the park position of the transmission range sensor.

2. What are the common symptoms of code P182D in a 2016 Chevrolet Silverado?

Symptoms may include the transmission being stuck in one gear, a malfunctioning shift indicator, inability to shift into or out of Park, and the check engine light turning on.

3. What causes OBDII code P182D in a 2016 Chevrolet Silverado?

Common causes include a faulty internal mode switch, damaged or corroded wiring, a defective transmission control module (TCM), or loose electrical connections in the circuit.

4. Can I drive my 2016 Chevrolet Silverado with code P182D?

It's not recommended. Driving with this code can lead to transmission shifting issues, which may cause safety concerns or further damage to the vehicle.

5. How is code P182D diagnosed in a 2016 Chevrolet Silverado?

A mechanic will typically use a scan tool to confirm the code, inspect the transmission wiring and connectors, test the internal mode switch, and check for proper voltage in the circuit.

6. How do I fix OBDII code P182D in a 2016 Chevrolet Silverado?

Repairs may involve replacing the internal mode switch, repairing damaged wiring or connectors, or reprogramming or replacing the transmission control module (TCM), depending on the diagnosed issue.

7. What is the internal mode switch in a 2016 Chevrolet Silverado?

The internal mode switch is part of the transmission range sensor and detects the position of the gear selector to communicate with the transmission control module.

8. How much does it cost to repair code P182D on a 2016 Chevrolet Silverado?

Repair costs can range from $200 to $800 or more, depending on whether you need wiring repairs, a new internal mode switch, or transmission control module replacement.

9. Can a dead battery cause code P182D in a 2016 Chevrolet Silverado?

A dead or weak battery is unlikely to cause this specific code, but electrical issues related to low voltage could potentially affect the transmission circuits.

10. Will clearing the code fix P182D on a 2016 Chevrolet Silverado?

Clearing the code without addressing the underlying problem will only temporarily remove the check engine light. The code will likely return if the issue isn't resolved.