AutoCodes – Honda – P0842 2019 Honda CR-V

P0842 2019 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 2019 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 247

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 2019 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 2019 Honda CR-V - Transmission Fluid Pressure Sensor/Switch 'A' Circuit Low - AutoCodes.com — P0842 2019 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 2019 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 2019 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 2019 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 2019 Honda CR-V code?

Need more information on how to fix the P0842 2019 Honda CR-V code? Get Access to Factory Service Manuals

Need Help with the Code?

Get the P0842 2019 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 2019 Honda CR-V Code

1. What does the OBDII code P0842 mean on a 2019 Honda CR-V?

P0842 indicates a problem with the Transmission Fluid Pressure Sensor/Switch 'A' Circuit, specifically that the voltage detected is lower than the expected range.

2. What are the common symptoms of a P0842 code on a 2019 Honda CR-V?

Symptoms may include transmission slipping, harsh or erratic shifting, the transmission going into limp mode, and the illumination of the check engine light.

3. What causes the P0842 code on a 2019 Honda CR-V?

Common causes include a faulty transmission fluid pressure sensor, damaged or corroded wiring/connectors, low transmission fluid levels, or internal transmission issues.

4. Can low transmission fluid cause the P0842 code?

Yes, low or dirty transmission fluid can lead to incorrect pressure readings, triggering the P0842 code.

5. How do I diagnose the P0842 code on my 2019 Honda CR-V?

Start by checking the transmission fluid level and condition, inspect the wiring and connectors for damage or corrosion, and test the transmission fluid pressure sensor for proper function.

6. Is it safe to drive a 2019 Honda CR-V with a P0842 code?

Driving with a P0842 code is not recommended, as it can cause further damage to the transmission and lead to unsafe driving conditions.

7. What repairs might fix the P0842 code on a 2019 Honda CR-V?

Repairs may include replacing the transmission fluid pressure sensor, repairing or replacing damaged wiring or connectors, or performing a transmission fluid flush and refill.

8. How much does it cost to fix the P0842 code on a 2019 Honda CR-V?

The cost can vary, but replacing a transmission fluid pressure sensor typically ranges from $150 to $300, including parts and labor. Additional repairs for wiring or fluid issues may increase the cost.

9. Can a faulty transmission control module cause a P0842 code?

While less common, a malfunctioning transmission control module (TCM) can contribute to the P0842 code if it fails to correctly process sensor data.

10. How can I prevent the P0842 code from occurring on my 2019 Honda CR-V?

Regularly check and maintain proper transmission fluid levels, inspect wiring and connectors for damage, and follow the manufacturerâ€™s recommended service intervals for transmission maintenance.