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Engine-Codes – GMC – P184A GMC

P184A GMC Code - Internal Mode Switch 2 S Circuit Low Voltage

Quick Answer

The P184A GMC code indicates an issue with the Internal Mode Switch 2 S Circuit Low Voltage in the vehicle. Common causes include Faulty internal mode switch, Damaged wiring or connectors in the circuit, Transmission control module malfunction. 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
P184A GMC indicates Internal Mode Switch 2 S Circuit Low Voltage.
Common causes
Common causes include Faulty internal mode switch, Damaged wiring or connectors in the circuit, Transmission control module malfunction.
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 09, 2024
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Code P184A GMC Description

The P184A GMC code indicates an issue with the Internal Mode Switch 2 S Circuit Low Voltage in the vehicle. The Internal Mode Switch (IMS) is a component in the transmission control system that helps determine the current gear position of the vehicle. This specific code suggests that there is a low voltage condition in the circuit related to the second internal mode switch.

OBDII Code P184A GMC - Internal Mode Switch 2 S Circuit Low Voltage
P184A GMC Code - Internal Mode Switch 2 S Circuit Low Voltage

Common Causes of P184A GMC

  1. Faulty internal mode switch
  2. Damaged wiring or connectors in the circuit
  3. Transmission control module malfunction
  4. Low transmission fluid levels
  5. Electrical issues within the transmission system

Symptoms of P184A GMC

  1. Erratic shifting or difficulty shifting gears
  2. Transmission slipping
  3. Vehicle going into limp mode
  4. Check Engine Light illuminated
  5. Reduced fuel efficiency

How to Fix P184A GMC

  1. Perform a thorough diagnostic scan to retrieve the fault codes and pinpoint the exact cause of the issue.
  2. Inspect the internal mode switch and related wiring for any signs of damage or wear.
  3. Test the voltage in the circuit to determine if there is a low voltage condition present.
  4. Replace the internal mode switch if found to be faulty, and repair any damaged wiring or connectors.
  5. Clear the fault codes, reset the system, and test drive the vehicle to ensure the issue has been resolved.

Cost to Fix P184A GMC

The typical repair costs for addressing the P184A GMC code can vary depending on the specific cause of the issue and the labor rates in your area. In general, you can expect to pay anywhere from $150 to $500 for parts and labor to resolve this problem. However, it's essential to check with local auto repair shops for more accurate estimates based on your vehicle make and model. Keep in mind that diagnostic time and labor rates can vary, so it's advisable to get multiple quotes before proceeding with the repair.

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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 P184A GMC Code

1. What are common symptoms of OBDII code P184A GMC Internal Mode Switch 2 S Circuit Low Voltage?

Common symptoms include issues with shifting gears, hesitation during acceleration, and the inability to start the vehicle.

2. What are the possible causes of OBDII code P184A GMC Internal Mode Switch 2 S Circuit Low Voltage?

Possible causes include a faulty internal mode switch, damaged wiring or connectors, low transmission fluid levels, or a malfunctioning transmission control module.

3. How can I diagnose OBDII code P184A GMC Internal Mode Switch 2 S Circuit Low Voltage?

Diagnosis involves using a diagnostic scanner to read the code, checking the internal mode switch for proper operation, inspecting the wiring and connectors for damage, and testing the transmission control module.

4. Can I continue driving with OBDII code P184A GMC Internal Mode Switch 2 S Circuit Low Voltage?

It is not recommended to drive with this code as it can lead to further damage to the transmission and potentially cause safety issues on the road.

5. How can I repair OBDII code P184A GMC Internal Mode Switch 2 S Circuit Low Voltage?

Repair options include replacing the internal mode switch, repairing damaged wiring or connectors, ensuring proper transmission fluid levels, and recalibrating the transmission control module.

6. Is OBDII code P184A GMC Internal Mode Switch 2 S Circuit Low Voltage a serious issue?

Yes, this code indicates a problem with the transmission system, which is a critical component of the vehicle. It should be addressed promptly to prevent further damage.

7. Can a DIYer fix OBDII code P184A GMC Internal Mode Switch 2 S Circuit Low Voltage?

While some basic troubleshooting steps can be performed by a DIYer, diagnosing and repairing this code may require specialized tools and expertise. It is recommended to consult a professional mechanic for proper diagnosis and repair.

8. How much does it cost to repair OBDII code P184A GMC Internal Mode Switch 2 S Circuit Low Voltage?

The cost of repair can vary depending on the underlying issue causing the code. It is best to get a diagnostic from a mechanic to determine the exact cost of repair.

9. Will resetting the OBDII code P184A GMC Internal Mode Switch 2 S Circuit Low Voltage make it go away permanently?

Resetting the code may temporarily clear the error, but if the underlying issue is not addressed, the code is likely to return. It is important to diagnose and fix the root cause of the problem.

10. Can OBDII code P184A GMC Internal Mode Switch 2 S Circuit Low Voltage be prevented?

Regular maintenance of the transmission system, such as checking fluid levels, inspecting for leaks, and addressing any unusual symptoms promptly, can help prevent this code from appearing.

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