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P1660 Volkswagen Code - Engine Coolant Blower Motor Speed 1 Short To Ground

Quick Answer

When the diagnostic trouble code P1660 appears on a Volkswagen vehicle, it indicates that there is a malfunction in the engine coolant blower motor speed 1 circuit, specifically a short to ground. Common causes include Electrical shorts in the wiring harness, Damaged or corroded connectors, Faulty blower motor. 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
P1660 Volkswagen indicates Engine Coolant Blower Motor Speed 1 Short To Ground.
Common causes
Common causes include Electrical shorts in the wiring harness, Damaged or corroded connectors, Faulty blower motor.
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 06, 2024
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Code P1660 Volkswagen Description

When the diagnostic trouble code P1660 appears on a Volkswagen vehicle, it indicates that there is a malfunction in the engine coolant blower motor speed 1 circuit, specifically a short to ground. The engine coolant blower motor is responsible for maintaining the temperature of the engine by circulating coolant through the radiator. When this circuit has a short to ground, it means that there is an unintended connection between the blower motor and the vehicle's ground system.

OBDII Code P1660 Volkswagen - Engine Coolant Blower Motor Speed 1 Short To Ground
P1660 Volkswagen Code - Engine Coolant Blower Motor Speed 1 Short To Ground

Common Causes of P1660 Volkswagen

  1. Electrical shorts in the wiring harness
  2. Damaged or corroded connectors
  3. Faulty blower motor
  4. Malfunctioning engine control module (ECM)
  5. Poor electrical connections

Symptoms of P1660 Volkswagen

  1. Engine overheating
  2. Erratic or inconsistent blower motor operation
  3. Check engine light illuminated
  4. Reduced fuel efficiency
  5. Decreased engine performance

How to Fix P1660 Volkswagen

  1. Begin by conducting a thorough visual inspection of the wiring harness, connectors, and blower motor for any signs of damage or corrosion.
  2. Use a multimeter to test for continuity and resistance in the engine coolant blower motor speed 1 circuit to identify any shorts to ground.
  3. Replace any damaged wiring, connectors, or the blower motor as necessary.
  4. Clear the diagnostic trouble codes and perform a test drive to ensure that the issue has been resolved.
  5. If the problem persists, further diagnosis may be required to identify any underlying issues with the ECM or other components.

Cost to Fix P1660 Volkswagen

The typical repair costs for addressing a P1660 code on a Volkswagen vehicle can range from $200 to $500, depending on the specific cause of the issue and the cost of parts and labor. This estimate includes the cost of replacing any damaged wiring, connectors, or the blower motor, as well as diagnostic time and labor costs. It's important to note that the actual cost of repairs can vary based on factors such as the vehicle's make and model, the location of the repair shop, and the rates charged for labor. It is recommended to obtain a quote from a trusted auto repair shop to get a more accurate estimate for addressing this issue.

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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 P1660 Volkswagen Code

1. What are common symptoms of OBDII code P1660 in a Volkswagen related to the Engine Coolant Blower Motor Speed 1 Short To Ground?

The common symptoms include overheating of the engine, reduced cooling performance, and potential issues with the vehicle's air conditioning system.

2. What are the possible causes of OBDII code P1660 in a Volkswagen indicating an Engine Coolant Blower Motor Speed 1 Short To Ground?

Possible causes can include a short circuit in the blower motor wiring, a faulty blower motor, or a problem with the blower motor control module.

3. How can I diagnose OBDII code P1660 in my Volkswagen related to Engine Coolant Blower Motor Speed 1 Short To Ground?

Diagnosis involves checking the wiring and connectors related to the blower motor, testing the blower motor itself for proper function, and inspecting the blower motor control module for any issues.

4. Can I continue to drive my Volkswagen with OBDII code P1660 indicating an Engine Coolant Blower Motor Speed 1 Short To Ground?

It is not recommended to drive the vehicle with this code as it can lead to engine overheating and potential damage if the cooling system is not functioning properly.

5. How can I repair OBDII code P1660 in my Volkswagen indicating an Engine Coolant Blower Motor Speed 1 Short To Ground?

Repair typically involves fixing the short circuit in the wiring, replacing the blower motor if necessary, or addressing any issues with the blower motor control module.

6. Is it possible to reset OBDII code P1660 in a Volkswagen related to Engine Coolant Blower Motor Speed 1 Short To Ground without fixing the underlying issue?

While you can clear the code with an OBDII scanner, it is important to address the root cause of the problem to prevent further issues with the vehicle's cooling system.

7. Will fixing OBDII code P1660 in my Volkswagen indicating an Engine Coolant Blower Motor Speed 1 Short To Ground be costly?

The cost of repair can vary depending on the exact cause of the issue, but it is generally recommended to address the problem promptly to avoid more expensive repairs in the future.

8. Can a DIY enthusiast fix OBDII code P1660 in a Volkswagen related to Engine Coolant Blower Motor Speed 1 Short To Ground?

Depending on the individual's skill level and access to tools, some DIY enthusiasts may be able to diagnose and repair this issue themselves, but it is recommended to seek professional help if unsure.

9. How long does it typically take to repair OBDII code P1660 in a Volkswagen indicating an Engine Coolant Blower Motor Speed 1 Short To Ground?

The repair time can vary based on the complexity of the issue and the availability of parts, but it is usually a relatively quick fix once the root cause is identified.

10. Can OBDII code P1660 in a Volkswagen related to Engine Coolant Blower Motor Speed 1 Short To Ground cause long-term damage to the vehicle?

Continued driving with this issue can potentially lead to long-term damage, such as engine overheating or damage to the cooling system components, so it is important to address the problem promptly.

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