AutoCodes – GMC – P182E GMC

P182E GMC Code - Internal Mode Switch Invalid Range

Quick Answer

The park/neutral position switch and the 5 Hall Effect switches are internal to and part of the internal mode switch assembly. 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: P182E GMC indicates Internal Mode Switch Invalid Range.
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 13,492

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 P182E GMC Description

The park/neutral position switch and the 5 Hall Effect switches are internal to and part of the internal mode switch assembly. The park/neutral switch indicates to the engine control module (ECM) if the vehicle is in park/neutral or in a drive gear range. With the ignition ON, the ECM provides 12 V on the park/neutral signal to the park/neutral position switch. A separate ground wire from the park/neutral position switch to the Transmission Control Module (TCM) completes the path to ground. When the gear shift lever in park or neutral, the switch closes and drops the voltage on the signal circuit to 0 V. In this state the engine will start and run. In reverse or drive range the park/neutral switch opens, 12 V is then present on the signal circuit which will inhibit engine starting. The Diagnostic Trouble Code (DTC) will be set when the internal mode switch does not indicate a valid Park, Reverse, Neutral or Drive range gear position.

OBDII Code P182E GMC - Internal Mode Switch Invalid Range - AutoCodes.com — P182E GMC Code - Internal Mode Switch Invalid Range

What does this mean?

What are the Possible Causes of the DTC P182E GMC?

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 P182E GMC?

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 P182E GMC 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.

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Information for Specific GMC Models

P182E 2014 GMC Sierra — Internal Mode Switch Invalid Range
P182E 2015 GMC Sierra — Internal Mode Switch Invalid Range
P182E 2016 GMC Sierra — Internal Mode Switch Invalid Range
P182E 2017 GMC Sierra — Internal Mode Switch Invalid Range
P182E 2018 GMC Sierra — Internal Mode Switch Invalid Range

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 P182E GMC Code

1. What are the common symptoms of OBDII code P182E GMC (Internal Mode Switch Invalid Range)?

The common symptoms of code P182E GMC include issues with shifting gears, hesitation or jerking during acceleration, and the inability to shift out of certain gears.

2. What are the possible causes of OBDII code P182E GMC?

The possible causes of code P182E GMC can include a faulty internal mode switch, damaged wiring or connectors related to the switch, or a malfunctioning transmission control module.

3. How serious is OBDII code P182E GMC?

Code P182E GMC should be addressed promptly as it can lead to poor vehicle performance, difficulty driving, and potential damage to the transmission if left unresolved.

4. Can I continue driving with OBDII code P182E GMC present?

It is not recommended to continue driving with code P182E GMC present, as it can cause further damage to the transmission and compromise safety on the road.

5. How can I diagnose OBDII code P182E GMC?

Diagnosing code P182E GMC typically involves using a scan tool to retrieve the code, checking the internal mode switch for proper operation, inspecting related wiring and connectors, and testing the transmission control module.

6. What are some DIY repair tips for fixing OBDII code P182E GMC?

DIY repair tips for code P182E GMC may include checking and cleaning the internal mode switch, repairing or replacing damaged wiring or connectors, and resetting the transmission control module.

7. Is it necessary to visit a mechanic for OBDII code P182E GMC?

While some DIY repairs may be possible for code P182E GMC, it is recommended to visit a qualified mechanic for proper diagnosis and repair to ensure the issue is resolved correctly.

8. Can resetting the transmission control module help clear OBDII code P182E GMC?

Resetting the transmission control module may temporarily clear the code, but it is important to address the underlying issue causing code P182E GMC to prevent it from reoccurring.

9. How much does it cost to fix OBDII code P182E GMC at a repair shop?

The cost to fix code P182E GMC at a repair shop can vary depending on the specific cause of the issue, but it may range from a few hundred to over a thousand dollars, including parts and labor.

10. How can I prevent OBDII code P182E GMC from appearing again?

To prevent code P182E GMC from reoccurring, regular maintenance of the transmission system, prompt attention to any warning signs or symptoms, and addressing any related issues promptly can help maintain optimal vehicle performance.