Engine-CodesChevrolet – P0669 2016 Chevrolet Silverado

P0669 2016 Chevrolet Silverado Code - Control Module Temperature Sensor Circuit High Voltage

Quick Answer

The P0669 diagnostic trouble code (DTC) in a 2016 Chevrolet Silverado indicates that there is a high voltage condition in the control module temperature sensor circuit. Common causes include Faulty control module temperature sensor, Damaged wiring or connectors in the circuit, Corrosion or poor connections in the sensor circuit. 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
P0669 2016 Chevrolet Silverado indicates Control Module Temperature Sensor Circuit High Voltage.
Common causes
Common causes include Faulty control module temperature sensor, Damaged wiring or connectors in the circuit, Corrosion or poor connections in the sensor circuit.
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.
Table of contents Created and updated by William Orellana on Sep 17, 2024
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Code P0669 2016 Chevrolet Silverado Description

The P0669 diagnostic trouble code (DTC) in a 2016 Chevrolet Silverado indicates that there is a high voltage condition in the control module temperature sensor circuit. This sensor is responsible for monitoring the temperature of the control module, which is crucial for ensuring optimal performance and preventing overheating. When the voltage in this circuit is higher than the specified range, it can lead to various issues within the vehicle's systems.

OBDII Code P0669 2016 Chevrolet Silverado - Control Module Temperature Sensor Circuit High Voltage
P0669 2016 Chevrolet Silverado Code - Control Module Temperature Sensor Circuit High Voltage

Common Causes of P0669 2016 Chevrolet Silverado

  1. Faulty control module temperature sensor
  2. Damaged wiring or connectors in the circuit
  3. Corrosion or poor connections in the sensor circuit
  4. Issues with the control module itself
  5. Electrical interference or short circuits

Symptoms of P0669 2016 Chevrolet Silverado

  1. Check engine light illuminated on the dashboard
  2. Reduced fuel economy
  3. Power loss during acceleration
  4. Engine stalling or rough idling
  5. Overheating of the control module

How to Fix P0669 2016 Chevrolet Silverado

  1. Begin by using a diagnostic scanner to retrieve the trouble codes and identify the specific issue related to the control module temperature sensor circuit.
  2. Inspect the wiring and connectors in the circuit for any damage, corrosion, or poor connections. Repair or replace as necessary.
  3. Test the control module temperature sensor to determine if it is functioning correctly. Replace the sensor if it is faulty.
  4. Clear the trouble codes from the vehicle's computer using the diagnostic scanner and test drive the vehicle to ensure the issue has been resolved.
  5. If the problem persists, further diagnostics may be required to pinpoint the exact cause of the high voltage condition in the control module temperature sensor circuit.

Cost to Fix P0669 2016 Chevrolet Silverado

The typical repair costs for addressing a P0669 code in a 2016 Chevrolet Silverado can vary depending on the specific cause of the issue. On average, the parts required for this repair, such as a new control module temperature sensor or wiring components, can range from $50 to $200. Labor costs at auto repair shops typically range between $80 and $150 per hour, with the total repair time varying based on the complexity of the issue. Therefore, the total cost for resolving this code could range from $150 to $500 or more, depending on the extent of the repairs needed. It is advisable to consult with a professional mechanic for a more accurate estimate based on your vehicle's specific requirements.

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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 P0669 2016 Chevrolet Silverado Code

What does OBDII code P0669 mean for a 2016 Chevrolet Silverado?

Code P0669 indicates a high voltage issue in the Control Module Temperature Sensor Circuit, which monitors the temperature of the control module.

What are the common symptoms of code P0669?

Symptoms may include an illuminated check engine light, erratic engine performance, or reduced fuel efficiency.

What causes code P0669 in a 2016 Chevrolet Silverado?

Common causes include a faulty control module temperature sensor, damaged wiring, poor electrical connections, or issues in the control module itself.

Can driving with code P0669 damage my vehicle?

Driving with this code may not cause immediate damage, but ignoring it can lead to further performance issues or potential damage to the control module.

How do I diagnose code P0669?

Diagnosis typically involves scanning for additional codes, inspecting the temperature sensor and wiring, and testing the voltage in the circuit.

How can I fix code P0669 on my Silverado?

Repairs may include replacing the temperature sensor, repairing damaged wiring, or addressing faults in the control module.

Is code P0669 specific to the Chevrolet Silverado?

No, this code can appear on other vehicles with control module temperature sensors, but the diagnosis and repair steps may vary.

How much does it cost to repair code P0669?

The cost depends on the specific repair needed. Sensor replacement may cost around $100-$300, while control module repairs can be more expensive.

Can a faulty control module cause code P0669?

Yes, an internal failure in the control module can trigger this code if the sensor circuit is not functioning properly.

Do I need professional help to fix code P0669?

If you're experienced with vehicle electronics, you may attempt repairs yourself. Otherwise, a professional mechanic is recommended for accurate diagnosis and repair.

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