AutoCodes – Dodge – P0842 Dodge

P0842 Dodge Code - Transmission Fluid Pressure Sensor/Switch 'A' Circuit Low

Quick Answer

The Transmission Control Module (TCM) monitors the Transmission Fluid Pressure Sensor/Switch signal. Common causes include Low transmission fluid level, Dirty transmission fluid, Faulty Transmission Fluid Pressure Sensor/Switch 'A'. 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 Dodge indicates Transmission Fluid Pressure Sensor/Switch 'A' Circuit Low.
Common causes
Common causes include Low transmission fluid level, Dirty transmission fluid, Faulty Transmission Fluid Pressure Sensor/Switch 'A'.
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.
AI answers can be wrong. Verify repairs with testing. Open full chat
Code Popularity 12,033
How popular is this code, among other codes? Low
Table of contents Created and updated by William Orellana on May 10, 2019
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Code P0842 Dodge Description

The Transmission Control Module (TCM) monitors the Transmission Fluid Pressure Sensor/Switch signal. The TCM sets the OBDII code when the Transmission Fluid Pressure Sensor/Switch is not to factory specifications.
OBDII Code P0842 Dodge - Transmission Fluid Pressure Sensor/Switch 'A' Circuit Low - AutoCodes.com
P0842 Dodge Code - Transmission Fluid Pressure Sensor/Switch 'A' Circuit Low

What are the Possible Causes of the DTC P0842 Dodge?

  • Low transmission fluid level
  • Dirty transmission fluid
  • Faulty Transmission Fluid Pressure Sensor/Switch 'A'
  • Transmission Fluid Pressure Sensor/Switch 'A' harness or connectors
  • Transmission Fluid Pressure Sensor/Switch 'A' circuit is open or shorted
  • Transmission internal mechanical problem

How to Fix the DTC P0842 Dodge?

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 Dodge 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 Dodge code?

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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 P0842 Dodge Code

What does the OBDII code P0842 mean for a Dodge vehicle?

P0842 indicates a problem with the Transmission Fluid Pressure Sensor/Switch 'A' Circuit, where the sensor is detecting abnormally low pressure.

What are the common symptoms of code P0842 on a Dodge?

Symptoms may include transmission slipping, harsh or erratic shifting, the vehicle going into limp mode, and the Check Engine Light turning on.

What causes the P0842 code on a Dodge vehicle?

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

Can driving with code P0842 damage my Dodge vehicle?

Yes, driving with this code can lead to further transmission damage if the issue isn't addressed promptly, especially if the transmission is slipping or overheating.

How do I diagnose the P0842 code on my Dodge?

Start by checking the transmission fluid level and condition, inspecting wiring and connectors, and testing the transmission fluid pressure sensor for proper function.

Is the P0842 code specific to Dodge vehicles?

No, P0842 can occur in various makes and models, but the troubleshooting and repair process may vary depending on the vehicle.

How do I fix the P0842 code on my Dodge?

Common fixes include replacing the transmission fluid pressure sensor, repairing damaged wiring or connectors, or addressing internal transmission issues if necessary.

Does the P0842 code always mean the transmission fluid pressure sensor is bad?

No, the issue could also be due to wiring problems, low fluid levels, or internal transmission failures.

Is replacing the transmission fluid pressure sensor expensive?

The cost depends on your Dodge model, but typically the sensor itself is relatively affordable, while labor costs may vary depending on accessibility.

Can I clear the P0842 code without fixing the problem?

Clearing the code without addressing the underlying issue will likely result in the code returning and may lead to further transmission problems.

Discuss the causes and fixes for P0842 Dodge OBDII Code

  • U I have ordered all sylyniod for my cat going to change them out and see if it clears my problem I have checked all connection wires and fuses look all goid

  • I have this code in my dodge caliber 2008 but after OBD test and reseted the fualt the code is go on and I waiting if it is appear again I shoud check the TF connectins and sensore switch A . Thank you AutoCodes for these informations it is agreat and a very usefull website .

    Eng. Aws Adel from Iraq

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