Engine-CodesVolkswagen – P1661 Volkswagen

P1661 Volkswagen Code - Engine Coolant Blower Motor Speed 2 Short To Positive

Quick Answer

The P1661 diagnostic trouble code for Volkswagen vehicles indicates a problem with the Engine Coolant Blower Motor Speed 2 Short To Positive. Common causes include The potential causes of the P1661 code can include:, Short circuit in the wiring harness of the engine coolant blower motor, Faulty engine coolant 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
P1661 Volkswagen indicates Engine Coolant Blower Motor Speed 2 Short To Positive.
Common causes
Common causes include The potential causes of the P1661 code can include:, Short circuit in the wiring harness of the engine coolant blower motor, Faulty engine coolant 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.
Table of contents Created and updated by William Orellana on Sep 10, 2024
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Code P1661 Volkswagen Description

The P1661 diagnostic trouble code for Volkswagen vehicles indicates a problem with the Engine Coolant Blower Motor Speed 2 Short To Positive. This means that there is a malfunction in the circuit that controls the second speed of the engine coolant blower motor, causing it to short to a positive power source. The engine coolant blower motor is responsible for cooling down the engine by circulating coolant through the radiator, and having issues with its speed control can lead to overheating problems and potential engine damage.

OBDII Code P1661 Volkswagen - Engine Coolant Blower Motor Speed 2 Short To Positive
P1661 Volkswagen Code - Engine Coolant Blower Motor Speed 2 Short To Positive

Common Causes of P1661 Volkswagen

The potential causes of the P1661 code can include:

  1. Short circuit in the wiring harness of the engine coolant blower motor
  2. Faulty engine coolant blower motor
  3. ECM malfunction
  4. Poor electrical connection in the blower motor circuit
  5. Blown fuse related to the blower motor circuit

Symptoms of P1661 Volkswagen

Some symptoms that may be associated with the P1661 code include:

  1. Overheating of the engine
  2. Check engine light illuminated on the dashboard
  3. Reduced engine performance
  4. Cooling fan running at a constant speed
  5. Strange noises coming from the engine compartment

How to Fix P1661 Volkswagen

To resolve the P1661 Engine Coolant Blower Motor Speed 2 Short To Positive code, the following steps can be taken:

  1. Begin by visually inspecting the wiring harness and connectors related to the engine coolant blower motor for any signs of damage or corrosion.
  2. Test the engine coolant blower motor to determine if it is functioning properly. If it is found to be faulty, replace it with a new one.
  3. Check the fuses associated with the blower motor circuit and replace any blown fuses.
  4. Use a multimeter to test the voltage in the blower motor circuit and identify any abnormalities that may be causing the short to positive.
  5. Clear the trouble code from the ECM memory and test drive the vehicle to ensure the issue has been resolved.

Cost to Fix P1661 Volkswagen

The typical repair costs for addressing the P1661 code can vary depending on the specific cause of the issue and the labor rates at the auto repair shop. In general, replacing the engine coolant blower motor can cost between $200 and $400, while addressing wiring harness issues or ECM malfunctions may increase the repair costs. It's important to factor in the diagnosis time and labor rates at your local auto repair shop, which can vary but typically range between $80 and $150 per hour. It's recommended to consult with a professional mechanic to get an accurate estimate for resolving the P1661 code on your Volkswagen vehicle.

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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 P1661 Volkswagen Code

What does OBDII code P1661 mean in a Volkswagen?

P1661 indicates an issue with the Engine Coolant Blower Motor Speed 2 circuit, specifically a short to positive.

What are the common symptoms of code P1661 in a Volkswagen?

Symptoms may include the engine overheating, the fan running at incorrect speeds, or the Check Engine Light being illuminated.

What causes the P1661 code to appear in a Volkswagen?

Typical causes include damaged wiring, a short circuit, a faulty blower motor, or issues with the fan control module.

Can I drive my Volkswagen with the P1661 code?

It is not recommended to drive with this code, as it could lead to engine overheating and potential damage.

How can I diagnose the P1661 code in my Volkswagen?

Start by inspecting the wiring and connectors for damage, test the blower motor, and check the fan control module for faults.

What tools are needed to troubleshoot the P1661 code?

You'll need an OBDII scanner, a multimeter, and potentially wiring diagrams specific to your Volkswagen model.

How do I fix the P1661 code in a Volkswagen?

Repairs may involve replacing damaged wiring, the blower motor, or the fan control module, depending on the diagnosis.

Is the P1661 code common in Volkswagen vehicles?

While not the most common code, it can occur in models with electric cooling fans and blower motors.

How much does it cost to repair the P1661 code?

Repair costs vary based on the issue, ranging from $50 for a simple wiring fix to over $300 for blower motor or control module replacement.

Can the P1661 code damage my Volkswagen engine?

Yes, if not addressed promptly, it can lead to overheating, which may result in severe engine damage.

Discuss the causes and fixes for P1661 Volkswagen OBDII Code

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