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C1166 Nissan Code - Suction Valve 1

Quick Answer

The C1166 diagnostic trouble code for Nissan vehicles specifically refers to an issue with the suction valve 1. Common causes include Blockage or restriction in the suction valve, Electrical or wiring issues affecting the valve's operation, Corrosion or damage to the valve. 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
C1166 Nissan indicates Suction Valve 1.
Common causes
Common causes include Blockage or restriction in the suction valve, Electrical or wiring issues affecting the valve's operation, Corrosion or damage to the valve.
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 09, 2024
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Code C1166 Nissan Description

The C1166 diagnostic trouble code for Nissan vehicles specifically refers to an issue with the suction valve 1. In the context of the vehicle's anti-lock braking system (ABS), this code indicates a problem with the valve responsible for regulating the pressure of the brake fluid in the ABS hydraulic unit. The suction valve plays a critical role in ensuring that the proper amount of brake fluid is distributed to the wheels during braking, helping to prevent wheel lock-up and skidding.

OBDII Code C1166 Nissan - Suction Valve 1
C1166 Nissan Code - Suction Valve 1

Common Causes of C1166 Nissan

  1. Blockage or restriction in the suction valve.
  2. Electrical or wiring issues affecting the valve's operation.
  3. Corrosion or damage to the valve.
  4. Malfunction in the ABS hydraulic unit.
  5. Faulty sensors or control modules related to the ABS system.

Symptoms of C1166 Nissan

  1. Illumination of the ABS warning light on the dashboard.
  2. Increased brake pedal effort required to stop the vehicle.
  3. Longer stopping distances when braking.
  4. ABS system malfunction or failure.
  5. Traction control system engagement during normal driving conditions.

How to Fix C1166 Nissan

  1. Diagnose the specific cause of the C1166 code using a professional diagnostic scanner.
  2. Inspect the suction valve 1 for any blockages, damage, or corrosion.
  3. Test the electrical connections and wiring related to the valve for proper operation.
  4. Replace the suction valve 1 if it is found to be faulty, ensuring proper installation and calibration.
  5. Clear the ABS system memory of the error code and test the vehicle to ensure proper brake function and ABS operation.

Cost to Fix C1166 Nissan

The cost of repairing a C1166 code related to the suction valve 1 in a Nissan vehicle can vary depending on the specific cause of the issue and the cost of parts and labor in your area. On average, you can expect to pay between $200 and $500 for parts and labor to address this problem. However, it's important to note that diagnostic time and labor rates at auto repair shops can vary significantly, so it's recommended to obtain quotes from multiple sources to get a more accurate estimate. Keep in mind that rates at dealerships and in metropolitan areas may be higher, while independent shops often offer more competitive pricing for repairs.

When is the Code Detected?

Front side VDC switch-over solenoid valve (suction valve 1) is open or shorted, or control line is open or shorted to power supply or ground.

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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 C1166 Nissan Code

1. What are the common symptoms of OBDII code C1166 Nissan related to Suction Valve 1?

The common symptoms include issues with the vehicle's braking system, such as a spongy brake pedal or difficulty in applying brakes.

2. What could be causing the OBDII code C1166 Nissan related to Suction Valve 1?

The code C1166 in Nissan vehicles related to Suction Valve 1 is often caused by a malfunction in the brake fluid pressure sensor circuit.

3. How can I diagnose the OBDII code C1166 Nissan related to Suction Valve 1?

Diagnosing this code typically involves checking the brake fluid level, inspecting the brake fluid pressure sensor, and testing the related wiring for any faults.

4. Can I still drive my vehicle with the OBDII code C1166 Nissan related to Suction Valve 1?

It is not recommended to drive the vehicle with this code present, as it can affect the proper functioning of the braking system and compromise your safety on the road.

5. How can I repair the OBDII code C1166 Nissan related to Suction Valve 1?

Repairing this code may involve replacing the faulty brake fluid pressure sensor, repairing any damaged wiring, or resetting the system after addressing the underlying issue.

6. Are there any DIY tips for fixing the OBDII code C1166 Nissan related to Suction Valve 1?

While some basic troubleshooting steps can be done by DIY enthusiasts, it is advisable to seek professional help for a thorough diagnosis and repair of this code.

7. How much does it cost to fix the OBDII code C1166 Nissan related to Suction Valve 1?

The cost of fixing this code can vary depending on the extent of the issue, parts needed for replacement, and labor charges. It's best to consult a mechanic for an accurate estimate.

8. Can a faulty Suction Valve 1 cause other OBDII codes to appear in a Nissan vehicle?

Yes, a malfunction in the Suction Valve 1 can sometimes trigger other related codes, so it's essential to address the root cause promptly to prevent further issues.

9. Will resetting the OBDII code C1166 Nissan related to Suction Valve 1 make it go away permanently?

Simply resetting the code may temporarily clear the error, but if the underlying issue is not fixed, the code is likely to reappear. It's crucial to address the root cause for a permanent solution.

10. How long does it typically take to repair the OBDII code C1166 Nissan related to Suction Valve 1?

The repair time can vary based on the specific issue and the expertise of the mechanic. It's best to consult a professional for an estimate of the repair duration.

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