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P0602 2014 Chevrolet Silverado Code - Control Module Not Programmed

Quick Answer

The P0602 diagnostic trouble code (DTC) for a 2014 Chevrolet Silverado indicates that the Engine Control Module (ECM) or Powertrain Control Module (PCM) has not been programmed correctly or is missing vital information. Common causes include Faulty ECM/PCM, Software glitch, Improper programming during repair or replacement. 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
P0602 2014 Chevrolet Silverado indicates Control Module Not Programmed.
Common causes
Common causes include Faulty ECM/PCM, Software glitch, Improper programming during repair or replacement.
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 P0602 2014 Chevrolet Silverado Description

The P0602 diagnostic trouble code (DTC) for a 2014 Chevrolet Silverado indicates that the Engine Control Module (ECM) or Powertrain Control Module (PCM) has not been programmed correctly or is missing vital information. The ECM/PCM is a crucial component of the vehicle's onboard computer system, responsible for managing various engine functions, emissions controls, and overall vehicle performance.

OBDII Code P0602 2014 Chevrolet Silverado - Control Module Not Programmed
P0602 2014 Chevrolet Silverado Code - Control Module Not Programmed

Common Causes of P0602 2014 Chevrolet Silverado

  1. Faulty ECM/PCM
  2. Software glitch
  3. Improper programming during repair or replacement
  4. Wiring issue affecting communication

Symptoms of P0602 2014 Chevrolet Silverado

  1. Rough idling
  2. Stalling
  3. Poor acceleration
  4. Reduced power
  5. Difficulty starting

How to Fix P0602 2014 Chevrolet Silverado

  1. Verify the DTC: Use a diagnostic scanner to confirm the P0602 code and ensure it is not a false alarm.
  2. Check for software updates: Verify if there are any software updates available for the ECM/PCM to address programming issues.
  3. Reprogram the ECM/PCM: If the control module is not programmed correctly, reprogramming it with the correct software can resolve the issue.
  4. Inspect wiring: Check for any damaged or loose wiring that may be affecting communication between the control module and other vehicle systems.
  5. Replace the ECM/PCM: If the control module is faulty and cannot be reprogrammed, replacing it with a new or refurbished unit may be necessary.

Cost to Fix P0602 2014 Chevrolet Silverado

The cost of repairing a P0602 code on a 2014 Chevrolet Silverado can vary depending on the specific cause of the issue. In general, reprogramming the ECM/PCM or addressing software glitches may cost between $100 to $300. If a replacement ECM/PCM is required, the cost can range from $500 to $1000, including parts and labor. It is important to note that diagnostic time and labor rates at auto repair shops can vary, so it is advisable to check local rates for a more accurate estimate.

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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 P0602 2014 Chevrolet Silverado Code

1. What does the OBDII code P0602 in a 2014 Chevrolet Silverado mean?

The code P0602 indicates that the Engine Control Module (ECM) has not been programmed correctly or is experiencing internal memory issues.

2. What are the common symptoms of a P0602 code in a 2014 Chevrolet Silverado?

Common symptoms of a P0602 code include engine stalling, rough idling, poor acceleration, and in some cases, the vehicle may not start at all.

3. What are the possible causes of a P0602 code in a 2014 Chevrolet Silverado?

Possible causes of a P0602 code include a faulty ECM, issues with the ECM programming, electrical problems, or a weak battery causing voltage fluctuations.

4. How can I diagnose a P0602 code in my 2014 Chevrolet Silverado?

Diagnosing a P0602 code typically involves checking the ECM for proper programming, inspecting the wiring and connectors for any damage, and testing the battery and charging system for proper voltage levels.

5. Can I drive my 2014 Chevrolet Silverado with a P0602 code?

It is not recommended to drive your vehicle with a P0602 code as it can lead to further damage and potential safety hazards. It is best to address the issue promptly.

6. How can I repair a P0602 code in my 2014 Chevrolet Silverado?

Repairing a P0602 code may involve reprogramming the ECM, replacing the ECM if necessary, fixing any wiring or connector issues, and ensuring the battery is in good condition.

7. Can a P0602 code be cleared with a simple reset?

Clearing a P0602 code with a simple reset may temporarily eliminate the warning light, but the underlying issue causing the code will persist until properly addressed.

8. Is it necessary to visit a dealership for a P0602 code in a 2014 Chevrolet Silverado?

While visiting a dealership for a P0602 code is recommended for accurate diagnosis and repair, an experienced mechanic or automotive technician can also address the issue effectively.

9. How much does it cost to repair a P0602 code in a 2014 Chevrolet Silverado?

The cost of repairing a P0602 code can vary depending on the exact cause of the issue. It may range from a simple programming update to replacing the ECM, potentially costing a few hundred to a few thousand dollars.

10. How can I prevent a P0602 code from reoccurring in my 2014 Chevrolet Silverado?

To prevent a P0602 code from reoccurring, it is essential to maintain your vehicle regularly, ensure the battery is in good condition, and address any electrical issues promptly to avoid ECM programming errors.

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