AutoCodes – Honda – P0842 2020 Honda CR-V

P0842 2020 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 2020 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 283

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 2020 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 2020 Honda CR-V - Transmission Fluid Pressure Sensor/Switch 'A' Circuit Low - AutoCodes.com — P0842 2020 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 2020 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 2020 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 2020 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 2020 Honda CR-V code?

Need more information on how to fix the P0842 2020 Honda CR-V code? Get Access to Factory Service Manuals

Need Help with the Code?

Get the P0842 2020 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 2020 Honda CR-V Code

1. What are the common symptoms of OBDII code P0842 on a 2020 Honda CR-V?

- Common symptoms include harsh shifting, transmission slipping, poor fuel economy, and an illuminated check engine light.

2. What can cause the Transmission Fluid Pressure Sensor/Switch 'A' Circuit Low code on a 2020 Honda CR-V?

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

3. How serious is OBDII code P0842 on a 2020 Honda CR-V?

- Ignoring this code can lead to further damage to the transmission, potentially resulting in costly repairs. It is recommended to address the issue promptly.

4. How can I diagnose the cause of OBDII code P0842 on my 2020 Honda CR-V?

- Diagnosing this code typically involves checking the transmission fluid level and condition, inspecting the sensor/switch and related wiring, and using a scan tool to monitor sensor data.

5. Can I continue driving my 2020 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 transmission issues and potential safety hazards. It is best to have the problem diagnosed and repaired as soon as possible.

6. How much does it typically cost to repair OBDII code P0842 on a 2020 Honda CR-V?

- The cost of repairs can vary depending on the exact cause of the issue. It may involve replacing the sensor/switch, repairing wiring, or addressing other transmission-related issues. Costs can range from a few hundred to over a thousand dollars.

7. Are there any DIY tips for fixing OBDII code P0842 on a 2020 Honda CR-V?

- While some DIY enthusiasts may attempt to diagnose and repair this code, it is recommended to seek professional help due to the complexity of transmission systems. However, checking for loose connections or damaged wires could be a starting point.

8. Can a faulty transmission fluid pressure sensor/switch cause other issues besides OBDII code P0842?

- Yes, a faulty sensor/switch can cause various transmission-related problems, such as erratic shifting, transmission slipping, and decreased fuel efficiency.

9. Is it possible for a low transmission fluid level to trigger OBDII code P0842 on a 2020 Honda CR-V?

- Yes, a low transmission fluid level can affect the pressure readings in the system, leading to the triggering of code P0842. It is essential to maintain the proper fluid level to avoid such issues.

10. How long does it take to repair OBDII code P0842 on a 2020 Honda CR-V?

- The repair time can vary based on the specific cause of the code and the availability of parts. In general, it may take a few hours to a full day for a professional mechanic to diagnose and fix the issue.