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P1873 1999 Honda Civic Code - Problem in CVT Pulley Pressure Control Valve Assembly Circuit

Quick Answer

The P1873 diagnostic trouble code (DTC) for a 1999 Honda Civic indicates a problem in the CVT (Continuously Variable Transmission) Pulley Pressure Control Valve Assembly Circuit. Common causes include Faulty pressure control valve assembly, Wiring or connector issues in the circuit, Low transmission fluid level or contaminated fluid. 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
P1873 1999 Honda Civic indicates Problem in CVT Pulley Pressure Control Valve Assembly Circuit.
Common causes
Common causes include Faulty pressure control valve assembly, Wiring or connector issues in the circuit, Low transmission fluid level or contaminated fluid.
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 16, 2024
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Code P1873 1999 Honda Civic Description

The P1873 diagnostic trouble code (DTC) for a 1999 Honda Civic indicates a problem in the CVT (Continuously Variable Transmission) Pulley Pressure Control Valve Assembly Circuit. In a CVT system, the pulley pressure control valve assembly plays a crucial role in regulating the hydraulic pressure within the transmission to facilitate smooth gear shifting and optimal performance. When this circuit malfunctions, it can lead to a variety of issues that affect the vehicle's drivability and overall performance.

OBDII Code P1873 1999 Honda Civic - Problem in CVT Pulley Pressure Control Valve Assembly Circuit
P1873 1999 Honda Civic Code - Problem in CVT Pulley Pressure Control Valve Assembly Circuit

Common Causes of P1873 1999 Honda Civic

  1. Faulty pressure control valve assembly
  2. Wiring or connector issues in the circuit
  3. Low transmission fluid level or contaminated fluid
  4. Electrical system malfunction affecting the CVT control module
  5. Mechanical damage to the transmission components

Symptoms of P1873 1999 Honda Civic

  1. Erratic or delayed shifting between gears
  2. Reduced fuel efficiency
  3. Transmission slipping or jerking during acceleration
  4. Illumination of the Check Engine Light
  5. Loss of power or acceleration

How to Fix P1873 1999 Honda Civic

  1. Begin by conducting a thorough diagnostic scan to confirm the P1873 code and pinpoint the exact cause of the issue.
  2. Inspect the pressure control valve assembly and associated wiring for any visible damage or signs of wear.
  3. Test the electrical components within the circuit, such as the solenoids, sensors, and connectors, to identify any faulty parts.
  4. Replace the defective pressure control valve assembly or repair any damaged wiring or connectors as needed.
  5. Clear the DTC and perform a test drive to ensure that the transmission operates smoothly and the code does not reappear.

Cost to Fix P1873 1999 Honda Civic

The typical repair costs for addressing a P1873 code in a 1999 Honda Civic can vary depending on the extent of the issue and the specific parts that require replacement. On average, the repair for this type of transmission-related problem can range from $300 to $800, including parts and labor. It's important to note that the actual cost may differ based on the location of the repair shop, the availability of parts, and the expertise of the technicians. Additionally, diagnostic time and labor rates can influence the final repair bill, with rates typically ranging from $80 to $150 per hour. To obtain a more accurate estimate, it is recommended to consult with a trusted auto repair professional in your area.

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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 P1873 1999 Honda Civic Code

1. What are the common symptoms of OBDII code P1873 in a 1999 Honda Civic?

- Common symptoms include transmission slipping, difficulty shifting gears, decreased fuel efficiency, and illuminated Check Engine light.

2. What does the OBDII code P1873 indicate in a 1999 Honda Civic?

- The code P1873 indicates a problem in the CVT pulley pressure control valve assembly circuit.

3. What are the possible causes of OBDII code P1873 in a 1999 Honda Civic?

- Possible causes include a faulty pressure control valve, damaged wiring or connectors in the circuit, low transmission fluid level, or a malfunctioning transmission control module.

4. How can I diagnose the issue causing OBDII code P1873 in my 1999 Honda Civic?

- Diagnosing the issue may involve checking the transmission fluid level, inspecting the wiring and connectors in the pressure control valve circuit, and performing a scan tool diagnosis to pinpoint the exact cause.

5. Can I continue driving my 1999 Honda Civic with OBDII code P1873?

- It is not recommended to continue driving with this code as it can lead to further transmission damage and potential safety hazards. It is best to address the issue promptly.

6. How can I repair OBDII code P1873 in my 1999 Honda Civic?

- Repairing the issue may involve replacing the faulty pressure control valve, repairing damaged wiring or connectors, ensuring proper transmission fluid levels, or reprogramming the transmission control module.

7. Will resetting the Check Engine light fix OBDII code P1873 in a 1999 Honda Civic?

- Simply resetting the Check Engine light will not fix the underlying issue causing the code. It is important to diagnose and address the root cause of the problem.

8. How much does it cost to repair OBDII code P1873 in a 1999 Honda Civic?

- The cost of repair can vary depending on the exact cause of the issue. It is recommended to consult with a professional mechanic for an accurate diagnosis and cost estimate.

9. Can a DIY enthusiast fix OBDII code P1873 in a 1999 Honda Civic?

- Depending on the level of expertise, a DIY enthusiast may be able to address simpler causes such as checking and topping up transmission fluid. However, more complex repairs may require professional assistance.

10. How can I prevent OBDII code P1873 from reoccurring in my 1999 Honda Civic?

- To prevent the code from reoccurring, it is important to maintain proper transmission fluid levels, address any wiring or connector issues promptly, and follow the manufacturer's recommended maintenance schedule.

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