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P0843 2016 Honda CR-V Code - Transmission Fluid Pressure Sensor/Switch 'A' Circuit High

Quick Answer

The P0843 diagnostic trouble code (DTC) for the 2016 Honda CR-V relates to the transmission fluid pressure sensor/switch 'A' circuit registering a high voltage. Common causes include Faulty transmission fluid pressure sensor, Damaged wiring or connectors in the sensor 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 2016 Honda CR-V indicates Transmission Fluid Pressure Sensor/Switch 'A' Circuit High.
Common causes
Common causes include Faulty transmission fluid pressure sensor, Damaged wiring or connectors in the sensor 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 10, 2024
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Code P0843 2016 Honda CR-V Description

The P0843 diagnostic trouble code (DTC) for the 2016 Honda CR-V relates to the transmission fluid pressure sensor/switch 'A' circuit registering a high voltage. This indicates that there may be an issue with the transmission fluid pressure sensor or its circuit. The transmission fluid pressure sensor is responsible for monitoring the hydraulic pressure within the transmission system, which is crucial for proper gear shifting and overall transmission performance.

OBDII Code P0843 2016 Honda CR-V - Transmission Fluid Pressure Sensor/Switch 'A' Circuit High
P0843 2016 Honda CR-V Code - Transmission Fluid Pressure Sensor/Switch 'A' Circuit High

Common Causes of P0843 2016 Honda CR-V

  1. Faulty transmission fluid pressure sensor
  2. Damaged wiring or connectors in the sensor circuit
  3. Low transmission fluid levels
  4. Contaminated or deteriorated transmission fluid
  5. Issues with the transmission control module (TCM)

Symptoms of P0843 2016 Honda CR-V

  1. Harsh or delayed shifting
  2. Erratic transmission behavior
  3. Transmission slippage
  4. Illuminated Check Engine Light
  5. Transmission overheating

How to Fix P0843 2016 Honda CR-V

  1. Retrieve the DTCs using an OBD-II scanner to confirm the P0843 code.
  2. Inspect the transmission fluid pressure sensor and its circuit for any visible damage or corrosion.
  3. Test the transmission fluid pressure sensor using a multimeter to check for proper voltage readings.
  4. Check and refill the transmission fluid to the appropriate level if it is low or contaminated.
  5. If necessary, replace the transmission fluid pressure sensor or repair any damaged wiring/connectors in the sensor circuit.

Cost to Fix P0843 2016 Honda CR-V

The cost of repairing a P0843 code on a 2016 Honda CR-V can vary depending on the specific issue causing the code and the labor rates in your area. On average, you can expect to pay anywhere from $150 to $400 for parts and labor. Keep in mind that diagnostic time and labor rates at auto repair shops can vary, so it's recommended to get a few quotes to find the best price.

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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 P0843 2016 Honda CR-V Code

1. What does OBDII code P0843 mean for a 2016 Honda CR-V?

The code P0843 indicates a problem with the Transmission Fluid Pressure Sensor/Switch 'A' Circuit High in the vehicle's transmission system.

2. What are the common symptoms of OBDII code P0843 in a 2016 Honda CR-V?

Common symptoms of P0843 may include harsh shifting, transmission slipping, transmission overheating, and the transmission going into limp mode.

3. What are the possible causes of OBDII code P0843 in a 2016 Honda CR-V?

Potential causes of P0843 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 OBDII code P0843 in my 2016 Honda CR-V?

Diagnosing P0843 typically involves using a scan tool to retrieve 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 2016 Honda CR-V with OBDII code P0843 present?

It is not recommended to drive your vehicle with an unresolved P0843 code, as it can lead to further damage to the transmission system and potentially unsafe driving conditions.

6. How can I repair OBDII code P0843 in my 2016 Honda CR-V?

Repairing P0843 may involve replacing the transmission fluid pressure sensor/switch, repairing or replacing damaged wiring or connectors, topping up or changing the transmission fluid, or reprogramming the transmission control module.

7. Is it necessary to visit a mechanic for OBDII code P0843 in a 2016 Honda CR-V?

While some DIY enthusiasts may be able to diagnose and repair P0843 themselves, it is recommended to consult a qualified mechanic for a proper diagnosis and repair to ensure the issue is resolved correctly.

8. Are there any preventive maintenance tips to avoid OBDII code P0843 in a 2016 Honda CR-V?

Regularly checking and maintaining proper transmission fluid levels, addressing any transmission fluid leaks promptly, and following the manufacturer's recommended service intervals can help prevent issues like P0843.

9. How much does it cost to fix OBDII code P0843 in a 2016 Honda CR-V?

The cost of fixing P0843 can vary depending on the exact cause of the issue, the labor rates in your area, and whether you choose to use OEM or aftermarket parts. It's best to get a few quotes from different repair shops for an accurate estimate.

10. Can resetting the OBDII code P0843 in a 2016 Honda CR-V make the problem go away?

Resetting the code may temporarily clear the warning light, but if the underlying issue causing P0843 is not addressed, the code is likely to reappear. It's crucial to diagnose and fix the root cause of the problem to prevent further issues.

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