P0840 Chrysler Code - Transmission Fluid Pressure Sensor/Switch 'A' Circuit
Quick Answer
The P0840 Chrysler code indicates a problem with the Transmission Fluid Pressure Sensor/Switch 'A' Circuit. Common causes include Faulty transmission fluid pressure sensor/switch, Damaged wiring or electrical connections, Issues with the ECM. 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
- P0840 Chrysler indicates Transmission Fluid Pressure Sensor/Switch 'A' Circuit.
- Common causes
- Common causes include Faulty transmission fluid pressure sensor/switch, Damaged wiring or electrical connections, Issues with the ECM.
- 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.
Fix Your Car Smarter
Try the New AutoCodes App!
Get complete OBDII diagnostics, repair solutions, and cost estimates, plus AI chat support on demand.
Code P0840 Chrysler Description
The P0840 Chrysler code indicates a problem with the Transmission Fluid Pressure Sensor/Switch 'A' Circuit. This sensor or switch is responsible for monitoring the hydraulic pressure in the transmission system. The transmission fluid pressure sensor helps the vehicle's engine control module (ECM) to determine the appropriate gear shifting and pressure regulation within the transmission.
Common Causes of P0840 Chrysler
- Faulty transmission fluid pressure sensor/switch
- Damaged wiring or electrical connections
- Issues with the ECM
- Low transmission fluid levels
- Contaminated or degraded transmission fluid
Symptoms of P0840 Chrysler
- Harsh or erratic shifting
- Delayed engagement when shifting gears
- Transmission slipping
- Transmission overheating
- Illuminated Check Engine Light
How to Fix P0840 Chrysler
- Begin by performing a visual inspection of the transmission fluid pressure sensor/switch and its wiring harness for any visible damage.
- Use a multimeter to test the sensor/switch for proper resistance and voltage readings.
- If the sensor/switch is faulty, replace it with a new one following manufacturer guidelines.
- Check and replace any damaged wiring or connectors if needed.
- Clear the fault codes and test drive the vehicle to ensure the issue has been resolved.
Cost to Fix P0840 Chrysler
The cost of repairing the Transmission Fluid Pressure Sensor/Switch 'A' Circuit issue can vary depending on the specific vehicle make and model, as well as the labor rates in your area. Typically, the cost of parts for this repair can range from $100 to $300, while the labor costs can range from $150 to $300. Overall, you can expect to pay anywhere from $250 to $600 for this repair at an auto repair shop, with additional costs for diagnostic time and any necessary fluid replenishment. Remember to consult with your local auto repair shops for a more accurate estimate based on your vehicle's specific needs.
Need more information about the P0840 Chrysler code?
Need more information on how to fix the P0840 Chrysler code? Get Access to Factory Service Manuals
Need Help with the Code?
Get the P0840 Chrysler code diagnosed by a professional: Find a repair shop in your area
Frequently Asked Questions about P0840 Chrysler Code
No Frequently Asked Questions about P0840 Chrysler Code found.
Discuss the causes and fixes for P0840 Chrysler OBDII Code
Code P0840 Chrysler comments
No comments found for this page.
Fix Your Car Smarter
Try the New AutoCodes App!
Get complete OBDII diagnostics, repair solutions, and cost estimates, plus AI chat support on demand.