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P1662 Audi Code - Engine Coolant Blower Motor Speed 2 Short To Ground

Quick Answer

The P1662 Audi code indicates that there is a short to ground in the engine coolant blower motor speed 2 circuit. Common causes include Wiring harness damage or corrosion, Faulty engine coolant blower motor, Malfunctioning blower motor control module. 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
P1662 Audi indicates Engine Coolant Blower Motor Speed 2 Short To Ground.
Common causes
Common causes include Wiring harness damage or corrosion, Faulty engine coolant blower motor, Malfunctioning blower motor control module.
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 10, 2024
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Code P1662 Audi Description

The P1662 Audi code indicates that there is a short to ground in the engine coolant blower motor speed 2 circuit. The engine coolant blower motor is responsible for helping to regulate the temperature of the engine by cooling down the coolant when needed. A short to ground means that there is an unintended connection between the blower motor speed 2 circuit and the ground, causing an electrical malfunction. This can lead to the blower motor not functioning properly, which can result in overheating of the engine and potentially causing damage to other components.

OBDII Code P1662 Audi - Engine Coolant Blower Motor Speed 2 Short To Ground
P1662 Audi Code - Engine Coolant Blower Motor Speed 2 Short To Ground

Common Causes of P1662 Audi

  1. Wiring harness damage or corrosion
  2. Faulty engine coolant blower motor
  3. Malfunctioning blower motor control module
  4. Short circuit in the blower motor speed 2 circuit
  5. Poor electrical connection in the circuit

Symptoms of P1662 Audi

  1. Engine overheating
  2. Inconsistent or weak airflow from the vents
  3. Check Engine Light illuminated
  4. Unusual noises coming from the blower motor
  5. Burning smell coming from the engine compartment

How to Fix P1662 Audi

  1. Begin by inspecting the wiring harness for any visible damage or corrosion. Repair or replace any damaged wires.
  2. Test the engine coolant blower motor to determine if it is functioning correctly. Replace the blower motor if necessary.
  3. Check the blower motor control module for any signs of malfunction. Replace the control module if needed.
  4. Verify that there are no short circuits in the blower motor speed 2 circuit. Repair any shorts found.
  5. Clear the diagnostic trouble codes and test the vehicle to ensure that the issue has been resolved.

Cost to Fix P1662 Audi

The typical repair costs for addressing a P1662 Audi code can vary depending on the specific cause of the issue. In general, the cost of parts such as a new blower motor or control module can range from $100 to $500, while labor costs can range from $100 to $300. Overall, the total repair cost for this issue may fall between $200 and $800. It's important to note that these are rough estimates, and actual repair costs can vary based on factors such as location, vehicle make and model, and the extent of the damage. It's recommended to consult with a qualified mechanic or auto repair shop for a more accurate cost 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 P1662 Audi Code

1. What does the OBDII code P1662 mean on an Audi?

P1662 indicates an issue with the Engine Coolant Blower Motor Speed 2 circuit, specifically a short to ground.

2. What are the common symptoms of the P1662 code on an Audi?

Symptoms may include the engine overheating, reduced cooling efficiency, or a Check Engine Light illuminated.

3. What causes the P1662 code on an Audi?

Common causes include damaged wiring, a short circuit, faulty coolant blower motor, or a malfunctioning control module.

4. Can I drive my Audi with the P1662 code?

Driving with this code is not recommended, as overheating could cause serious damage to the engine.

5. How do I diagnose the P1662 code on an Audi?

Inspect the wiring and connectors for damage, test the blower motor for functionality, and check for shorts or faults in the circuit.

6. How do I fix the P1662 code on an Audi?

Repairs may involve replacing damaged wiring, fixing the short circuit, or replacing the blower motor or its related control module.

7. How much does it cost to repair the P1662 code on an Audi?

Costs vary depending on the specific issue but may range from $100 to $500 for parts and labor.

8. Could a failing blower motor cause the P1662 code on my Audi?

Yes, a failing or shorted blower motor is a common cause of this code.

9. Do I need special tools to fix the P1662 code on an Audi?

You may need a multimeter to test circuits and wiring, as well as basic automotive tools for repairs.

10. Can a software issue cause the P1662 code on an Audi?

While rare, a software issue in the control module could potentially contribute to this code and may require reprogramming or updating.

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