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

Quick Answer

The P1873 Honda diagnostic trouble code indicates a problem in the CVT (Continuously Variable Transmission) pulley pressure control valve assembly circuit. Common causes include Faulty wiring or electrical connections in the CVT pulley pressure control valve circuit, Malfunctioning solenoid or sensor within the control valve assembly, Defective control module that regulates the pulley pressure. 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 Honda indicates Problem in CVT Pulley Pressure Control Valve Assembly Circuit.
Common causes
Common causes include Faulty wiring or electrical connections in the CVT pulley pressure control valve circuit, Malfunctioning solenoid or sensor within the control valve assembly, Defective control module that regulates the pulley pressure.
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 P1873 Honda Description

The P1873 Honda diagnostic trouble code indicates a problem in the CVT (Continuously Variable Transmission) pulley pressure control valve assembly circuit. The CVT is a type of automatic transmission that offers seamless acceleration without the need for traditional gear shifts. The pulley pressure control valve assembly plays a crucial role in regulating the hydraulic pressure within the transmission system, ensuring smooth operation and efficient power delivery.

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

Common Causes of P1873 Honda

  1. Faulty wiring or electrical connections in the CVT pulley pressure control valve circuit.
  2. Malfunctioning solenoid or sensor within the control valve assembly.
  3. Defective control module that regulates the pulley pressure.
  4. Transmission fluid contamination or improper fluid levels.
  5. General wear and tear on transmission components.

Symptoms of P1873 Honda

  1. Erratic shifting behavior, such as harsh or delayed gear changes.
  2. Transmission slipping or jerking during acceleration.
  3. Loss of power or reduced fuel efficiency.
  4. Illumination of the Check Engine Light on the dashboard.
  5. Transmission overheating or fluid leakage.

How to Fix P1873 Honda

  1. Begin by performing a thorough diagnostic scan to confirm the P1873 code and identify the specific issue within the CVT pulley pressure control valve assembly circuit.
  2. Inspect the wiring, connectors, and electrical components for any signs of damage or corrosion. Repair or replace any faulty components as needed.
  3. Test the solenoid and sensors within the control valve assembly to ensure they are functioning correctly. Replace any defective parts.
  4. Check the transmission fluid level and condition, topping off or flushing the fluid if necessary.
  5. Clear the trouble code from the vehicle's computer system and test drive the vehicle to verify that the issue has been resolved.

Cost to Fix P1873 Honda

The cost of repairing a P1873 Honda code can vary depending on the extent of the damage and the specific components that need to be replaced. In general, you can expect to pay anywhere from $200 to $600 for parts and labor. Keep in mind that diagnostic time, labor rates, and parts prices can vary between different auto repair shops. It's recommended to obtain quotes from multiple sources to ensure you are getting a fair price for the repair.

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Information for Specific Honda Models

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.

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