Engine-Codes.com
Engine-Codes – Honda – P0843 2018 Honda CR-V

P0843 2018 Honda CR-V Code - Transmission Fluid Pressure Sensor/Switch 'A' Circuit High

Quick Answer

The P0843 diagnostic trouble code (DTC) in a 2018 Honda CR-V indicates a problem with the Transmission Fluid Pressure Sensor/Switch 'A' Circuit being too high. Common causes include Faulty transmission fluid pressure sensor/switch, Wiring issues in the circuit, Low transmission fluid levels. 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
P0843 2018 Honda CR-V indicates Transmission Fluid Pressure Sensor/Switch 'A' Circuit High.
Common causes
Common causes include Faulty transmission fluid pressure sensor/switch, Wiring issues in the circuit, Low transmission fluid levels.
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 14, 2024
💬 Need more help? Ask Auto Expert for instant answers — it's free!
AutoCodes App

Fix Your Car Smarter

Try the New AutoCodes App!

Get complete OBDII diagnostics, repair solutions, and cost estimates, plus AI chat support on demand.

AutoCodes App on Google Play

Code P0843 2018 Honda CR-V Description

The P0843 diagnostic trouble code (DTC) in a 2018 Honda CR-V indicates a problem with the Transmission Fluid Pressure Sensor/Switch 'A' Circuit being too high. This sensor is responsible for monitoring the hydraulic pressure within the transmission system. When the sensor detects that the pressure is higher than the specified range, it triggers the P0843 code.

OBDII Code P0843 2018 Honda CR-V - Transmission Fluid Pressure Sensor/Switch 'A' Circuit High
P0843 2018 Honda CR-V Code - Transmission Fluid Pressure Sensor/Switch 'A' Circuit High

Common Causes of P0843 2018 Honda CR-V

  1. Faulty transmission fluid pressure sensor/switch
  2. Wiring issues in the circuit
  3. Low transmission fluid levels
  4. Malfunctioning transmission control module
  5. Internal transmission problems

Symptoms of P0843 2018 Honda CR-V

  1. Harsh or delayed shifting
  2. Transmission slipping
  3. Illuminated Check Engine Light
  4. Decreased fuel efficiency
  5. Transmission overheating

How to Fix P0843 2018 Honda CR-V

  1. Begin by conducting a thorough inspection of the transmission fluid pressure sensor/switch and its wiring harness to check for any visible damage or corrosion.
  2. Test the sensor/switch using a multimeter to determine if it is functioning within the specified parameters.
  3. Check the transmission fluid level and condition, topping off or replacing it if necessary.
  4. Inspect the transmission control module for any signs of damage or malfunction.
  5. Clear the DTC and test drive the vehicle to ensure that the issue has been resolved.

Cost to Fix P0843 2018 Honda CR-V

The typical repair costs for addressing a P0843 code in a 2018 Honda CR-V can range from $150 to $400, depending on the specific cause of the issue and the required repairs. This estimate includes the cost of parts and labor. However, it is important to note that actual repair costs may vary based on factors such as location, vehicle make and model, and the rates charged by auto repair shops. It is recommended to obtain quotes from local shops to get a more accurate estimate. Labor rates at auto repair shops typically range from $80 to $150 per hour, with rates potentially higher at dealerships or in metropolitan areas.

Need more information about the P0843 2018 Honda CR-V code?

Need more information on how to fix the P0843 2018 Honda CR-V code? Get Access to Factory Service Manuals

Need Help with the Code?

Get the P0843 2018 Honda CR-V code diagnosed by a professional: Find a repair shop in your area

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 P0843 2018 Honda CR-V Code

1. What does OBDII code P0843 on a 2018 Honda CR-V indicate?

The P0843 code specifically points to an issue with the Transmission Fluid Pressure Sensor/Switch 'A' Circuit registering high voltage.

2. What are the common symptoms of a P0843 code in a 2018 Honda CR-V?

Common symptoms include harsh shifting, transmission slippage, difficulty shifting gears, and the transmission going into limp mode.

3. What are the potential causes of a P0843 code in a 2018 Honda CR-V?

Possible causes include a faulty transmission fluid pressure sensor/switch, damaged wiring or connectors in the sensor circuit, low transmission fluid levels, or a malfunctioning transmission control module.

4. How can I diagnose a P0843 code in a 2018 Honda CR-V?

Diagnosis typically involves using a scan tool to read the code, checking the transmission fluid level and condition, inspecting the sensor and its wiring for damage, and testing the sensor's voltage and resistance.

5. Can I continue driving my 2018 Honda CR-V with a P0843 code?

It is not recommended to continue driving with a P0843 code, as it can lead to further damage to the transmission and potentially unsafe driving conditions.

6. How can I repair a P0843 code in a 2018 Honda CR-V?

Repair options include replacing the transmission fluid pressure sensor/switch, repairing or replacing damaged wiring or connectors, ensuring proper transmission fluid levels, and resetting the trouble code.

7. How much does it typically cost to fix a P0843 code in a 2018 Honda CR-V?

The cost of repair can vary depending on the exact cause of the issue and whether you do the repair yourself or take it to a professional. Costs may range from $100 to $500 or more.

8. Can a P0843 code in a 2018 Honda CR-V be fixed at home?

Depending on your mechanical skills and access to tools, you may be able to fix a P0843 code at home by following repair guides and videos. However, some cases may require professional diagnosis and repair.

9. How urgent is it to address a P0843 code in a 2018 Honda CR-V?

It is advisable to address a P0843 code promptly to prevent further transmission damage and ensure safe operation of your vehicle.

10. Is the P0843 code a common issue in 2018 Honda CR-Vs?

While the P0843 code may not be extremely common in 2018 Honda CR-Vs, it is a known issue that can occur due to various factors affecting the transmission fluid pressure sensor/switch circuit.

Discuss the causes and fixes for P0843 2018 Honda CR-V OBDII Code

Submit a New Comment

Code P0843 2018 Honda CR-V comments

No comments found for this page.