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P1824 2017 Chevrolet Silverado Code - Internal Mode Switch 'P' Circuit Low Voltage

Quick Answer

The P1824 diagnostic trouble code (DTC) for a 2017 Chevrolet Silverado indicates an issue with the Internal Mode Switch 'P' Circuit having low voltage. Common causes include Faulty Internal Mode Switch, Wiring or connector issues in the IMS circuit, Low battery voltage. 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
P1824 2017 Chevrolet Silverado indicates Internal Mode Switch 'P' Circuit Low Voltage.
Common causes
Common causes include Faulty Internal Mode Switch, Wiring or connector issues in the IMS circuit, Low battery voltage.
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.
What is this?
Table of contents Created and updated by William Orellana on Sep 13, 2024
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Code P1824 2017 Chevrolet Silverado Description

The P1824 diagnostic trouble code (DTC) for a 2017 Chevrolet Silverado indicates an issue with the Internal Mode Switch 'P' Circuit having low voltage. The Internal Mode Switch (IMS) is a component of the transmission control system that helps the vehicle's computer determine the current gear selection. When the IMS 'P' circuit is experiencing low voltage, it means that there is a problem with the signal being sent from the IMS to the transmission control module (TCM).

OBDII Code P1824 2017 Chevrolet Silverado - Internal Mode Switch 'P' Circuit Low Voltage
P1824 2017 Chevrolet Silverado Code - Internal Mode Switch 'P' Circuit Low Voltage

Common Causes of P1824 2017 Chevrolet Silverado

  1. Faulty Internal Mode Switch
  2. Wiring or connector issues in the IMS circuit
  3. Low battery voltage
  4. Faulty TCM
  5. Corrosion or damage to the IMS circuit

Symptoms of P1824 2017 Chevrolet Silverado

  1. Harsh or delayed shifting
  2. Transmission slipping
  3. Inability to shift gears
  4. Check Engine Light illuminated
  5. Reduced fuel efficiency

How to Fix P1824 2017 Chevrolet Silverado

  1. Diagnose the issue by using a scan tool to read the DTC and perform a thorough inspection of the IMS circuit.
  2. Check the wiring and connectors for any signs of damage, corrosion, or loose connections. Repair or replace as necessary.
  3. Test the Internal Mode Switch for proper operation and replace if faulty.
  4. Clear the DTC and test drive the vehicle to ensure the issue has been resolved.
  5. If the problem persists, further diagnostic testing may be required to identify any underlying issues with the TCM or other related components.

Cost to Fix P1824 2017 Chevrolet Silverado

The typical repair costs for addressing the Internal Mode Switch 'P' Circuit Low Voltage issue can vary depending on the specific cause of the problem and the labor rates in your area. In general, replacing the Internal Mode Switch or repairing wiring/connectors may cost between $200 to $500, including parts and labor. However, additional costs may apply if further diagnostic testing or component replacements are needed. It's recommended to consult with a qualified mechanic or auto repair shop for a more accurate estimate based on your vehicle's make and model. Keep in mind that labor rates can vary between different repair facilities, so it's advisable to shop around for the best price.

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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 P1824 2017 Chevrolet Silverado Code

1. What are the common symptoms of OBDII code P1824 in a 2017 Chevrolet Silverado?

- Common symptoms include issues with shifting gears, rough shifting, hesitation when accelerating, and potentially the inability to shift out of a particular gear.

2. What does the OBDII code P1824 'Internal Mode Switch 'P' Circuit Low Voltage' mean in a 2017 Chevrolet Silverado?

- This code indicates a problem with the internal mode switch circuit related to the 'P' gear in the transmission, specifically signaling low voltage.

3. What are the possible causes of OBDII code P1824 in a 2017 Chevrolet Silverado?

- Potential causes include a faulty internal mode switch, damaged wiring or connectors in the circuit, low voltage issues, or a malfunctioning transmission control module.

4. How can I diagnose the OBDII code P1824 on my 2017 Chevrolet Silverado?

- Diagnosing this code typically involves using a scan tool to retrieve the code, checking the internal mode switch and related circuitry for any visible damage, and testing voltage levels in the circuit.

5. Can I continue driving my 2017 Chevrolet Silverado with OBDII code P1824 present?

- It is not recommended to continue driving with this code active, as it can lead to transmission issues and potentially cause further damage. It's best to address the problem promptly.

6. How can I repair OBDII code P1824 in my 2017 Chevrolet Silverado?

- Repair options include replacing the internal mode switch if faulty, repairing or replacing damaged wiring or connectors, ensuring proper voltage levels, and resetting the fault code.

7. Is it safe to reset the OBDII code P1824 on my 2017 Chevrolet Silverado without fixing the underlying issue?

- While resetting the code may temporarily turn off the warning light, it is not a permanent solution. The underlying problem causing the code should be diagnosed and repaired to prevent further issues.

8. Will OBDII code P1824 cause my 2017 Chevrolet Silverado to go into limp mode?

- Depending on the severity of the issue, this code can potentially trigger the vehicle to go into limp mode to protect the transmission from further damage.

9. Can a DIY enthusiast fix OBDII code P1824 in a 2017 Chevrolet Silverado?

- Depending on the individual's skill level and access to tools, some DIY enthusiasts may be able to diagnose and repair this code. However, complex transmission issues may require professional assistance.

10. How much does it cost to repair OBDII code P1824 in a 2017 Chevrolet Silverado?

- The cost of repairing this code can vary based on the specific cause of the issue, parts needed for replacement, labor rates, and whether the repair is done at a dealership or an independent mechanic. It's advisable to get quotes from different sources for an accurate estimate.

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