AutoCodes – Chevrolet – P182C 2014 Chevrolet Silverado

P182C 2014 Chevrolet Silverado Code - Internal Mode Switch 'B' 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: P182C 2014 Chevrolet Silverado indicates Internal Mode Switch 'B' 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 310

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 P182C 2014 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 greater than 2.38 V, for 1.75 s.

OBDII Code P182C 2014 Chevrolet Silverado - Internal Mode Switch 'B' Circuit High Voltage - AutoCodes.com — P182C 2014 Chevrolet Silverado Code - Internal Mode Switch 'B' Circuit High Voltage

What does this mean?

What are the Possible Causes of the DTC P182C 2014 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 P182C 2014 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 P182C 2014 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 P182C 2014 Chevrolet Silverado code?

Need more information on how to fix the P182C 2014 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 P182C 2014 Chevrolet Silverado Code

1. What does OBDII code P182C mean on a 2014 Chevrolet Silverado?

P182C indicates a problem with the Internal Mode Switch (IMS) 'B' circuit, specifically that the voltage is higher than expected.

2. What are the common symptoms of code P182C?

Common symptoms include erratic transmission shifting, the vehicle stuck in one gear, or the check engine light illuminating.

3. What causes the P182C code to appear?

The code is typically caused by a faulty Internal Mode Switch, damaged wiring or connectors in the IMS circuit, or issues with the transmission control module (TCM).

4. Can driving with code P182C damage my 2014 Silverado?

Driving with this code may lead to further transmission issues if the cause isnâ€™t addressed, so itâ€™s best to diagnose and repair it promptly.

5. How do I diagnose the P182C code?

Start by inspecting the IMS wiring and connectors for damage or corrosion, then test the switch itself and check for proper voltage and continuity.

6. Is the Internal Mode Switch the same as the transmission range sensor?

Yes, the Internal Mode Switch is often referred to as the transmission range sensor, as it helps the TCM determine the current gear position.

7. What tools are needed to troubleshoot code P182C?

Youâ€™ll need an OBDII scanner, a multimeter for testing voltage and continuity, and possibly a wiring diagram for the IMS circuit.

8. Can a software issue cause the P182C code?

Yes, in some cases, a malfunctioning transmission control module (TCM) or outdated software can cause this code.

9. How much does it cost to repair code P182C?

Repair costs depend on the issue, ranging from $100 for wiring repairs to $300â€“$600 if the Internal Mode Switch needs replacement.

10. Can I fix the P182C code myself?

If youâ€™re comfortable with basic electrical diagnostics, you can inspect wiring and replace the IMS. Otherwise, itâ€™s best to consult a professional.