AutoCodes – Honda – P0842 2018 Honda CR-V

P0842 2018 Honda CR-V Code - Transmission Fluid Pressure Sensor/Switch 'A' Circuit Low

Quick Answer

The Continuously Variable Transmission (CVT) driven pulley pressure sensor uses a strain gauge. Common causes include Faulty CVT Driven Pulley Pressure Sensor, CVT Driven Pulley Pressure Sensor harness is open or shorted, CVT Driven Pulley Pressure Sensor circuit poor electrical connection. 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: P0842 2018 Honda CR-V indicates Transmission Fluid Pressure Sensor/Switch 'A' Circuit Low.
Common causes: Common causes include Faulty CVT Driven Pulley Pressure Sensor, CVT Driven Pulley Pressure Sensor harness is open or shorted, CVT Driven Pulley Pressure Sensor circuit poor electrical connection.
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.

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Code Popularity 301

How popular is this code, among other codes? Low

Repair Importance Level

Urgent (Diagnose now) (3 / 3)

Repair Difficulty Level

Advanced (Pro) (3 / 3)

What is this?

Table of contents Created and updated by William Orellana on Jan 30, 2024

Description
Possible Causes
How To Fix
Cost to Diagnose
FAQs
Comments
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Code P0842 2018 Honda CR-V Description

The Continuously Variable Transmission (CVT) driven pulley pressure sensor uses a strain gauge. The output voltage changes depending on the driven pulley pressure. The Powertrain Control Module (PCM) sends a 5 V reference voltage to the sensor through a pull-up resistor. When the driven pulley pressure is low, the sensor resistance decreases and the PCM detects a low signal voltage. Conversely, when the driven pulley pressure is high, the sensor resistance increases, and the PCM detects a high signal voltage. If the CVT driven pulley pressure sensor signal voltage is a specified voltage for a set time, the PCM detects a malfunction and stores a Diagnostic Trouble Code (DTC).

OBDII Code P0842 2018 Honda CR-V - Transmission Fluid Pressure Sensor/Switch 'A' Circuit Low - AutoCodes.com — P0842 2018 Honda CR-V Code - Transmission Fluid Pressure Sensor/Switch 'A' Circuit Low

What does this mean?

What are the Possible Causes of the DTC P0842 2018 Honda CR-V?

Faulty CVT Driven Pulley Pressure Sensor
CVT Driven Pulley Pressure Sensor harness is open or shorted
CVT Driven Pulley Pressure Sensor circuit poor electrical connection
Faulty Powertrain Control Module (PCM)

How to Fix the DTC P0842 2018 Honda CR-V?

Review the 'Possible Causes' above and visually examine the corresponding wiring harness and connectors. Check for damaged components and inspect connector pins for signs of being broken, bent, pushed out, or corroded.

What is the Cost to Diagnose the Code?

Labor: 1.0

To diagnose the P0842 2018 Honda CR-V code, it typically requires 1.0 hour of labor. Rates vary by location, vehicle, and shop. Many shops charge between $80–$150 per hour; dealerships and metro areas may be higher, independents may be lower.

Need more information about the P0842 2018 Honda CR-V code?

Need more information on how to fix the P0842 2018 Honda CR-V code? Get Access to Factory Service Manuals

Need Help with the Code?

Get the P0842 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 P0842 2018 Honda CR-V Code

1. What are the common symptoms of OBDII code P0842 in a 2018 Honda CR-V?

- Common symptoms include harsh shifting, transmission slippage, transmission overheating, and the transmission going into limp mode.

2. What does the OBDII code P0842 indicate in a 2018 Honda CR-V?

- The code P0842 indicates an issue with the Transmission Fluid Pressure Sensor/Switch 'A' Circuit registering low pressure.

3. What are the possible causes of OBDII code P0842 in a 2018 Honda CR-V?

- Possible causes include a faulty transmission fluid pressure sensor/switch, low transmission fluid levels, a clogged transmission filter, or a malfunctioning transmission control module.

4. How can I diagnose the OBDII code P0842 in my 2018 Honda CR-V?

- Diagnosing the code may involve checking the transmission fluid level and condition, inspecting the wiring and connectors related to the pressure sensor/switch, and using a scan tool to monitor transmission fluid pressure readings.

5. Can I continue driving my 2018 Honda CR-V with OBDII code P0842?

- It is not recommended to continue driving the vehicle with this code present, as it can lead to further transmission damage and potential safety hazards.

6. How can I repair OBDII code P0842 in my 2018 Honda CR-V?

- Repair may involve replacing the faulty transmission fluid pressure sensor/switch, addressing any transmission fluid leaks, ensuring proper fluid levels, and clearing the trouble codes.

7. Is it possible to reset the OBDII code P0842 in a 2018 Honda CR-V without repairs?

- While you can clear the code with a scan tool, it is essential to address the underlying issue causing the code to prevent further transmission problems.

8. Can a DIY enthusiast fix OBDII code P0842 in a 2018 Honda CR-V?

- Depending on your mechanical skills and access to tools, you may be able to replace the transmission fluid pressure sensor/switch yourself. However, diagnosing and repairing other potential causes may require professional assistance.

9. Are there any preventive maintenance measures to avoid OBDII code P0842 in a 2018 Honda CR-V?

- Regularly servicing the transmission, checking and maintaining proper fluid levels, and addressing any leaks promptly can help prevent issues leading to code P0842.

10. How much does it typically cost to repair OBDII code P0842 in a 2018 Honda CR-V?

- The cost of repairs can vary depending on the root cause of the issue, but it may range from a few hundred to over a thousand dollars, including parts and labor.