P0841: Transmission Fluid Pressure Sensor/Switch A Circuit Range/Performance
What Does P0841 Mean?
P0841 is a diagnostic trouble code indicating: Transmission Fluid Pressure Sensor/Switch A Circuit Range/Performance. This code relates to the transmission system. It has been reported in NHTSA complaints across 10 different vehicle models.
Symptoms of P0841
- ⚠️ Check engine light illuminated
- ⚠️ Jerking or surging while driving
- ⚠️ Transmission slipping
- ⚠️ Vehicle enters limp/reduced power mode
- ⚠️ Failure to accelerate
Common Causes
- 🔍 Stuck or failed EGR valve
- 🔍 Wiring or connector problem
- 🔍 Transmission component failure
- 🔍 Sensor or control module malfunction
P0841 Reports by Year
Real Owner Reports
From NHTSA complaint database — actual owner descriptions.
"problem with transmission at low sped code by Toyota p0841 p2829 the car has 35000miles Toyota toll me That I have to change the CVT transmission cost: 7380.$ by Bev Smith Toyota Fort Pierce FL 34982 Thanks [XXX] INFORMATION Redacted PURSUANT TO THE FREEDOM OF INFORMATION ACT (FOIA), 5 U.S"
— Toyota Corolla owner, 10/27/2021
"Our 2019 Honda Odyssey EX-L was our primary family vehicle. We conducted all routine maintenance as required by Honda, including transmission fluid exchange. Our vehicle experienced rough shifting consistently and at 102,000 miles experienced a total failure in the transmission dog clutch, with Emis"
— Honda Odyssey owner, 02/01/2026
"driving down the highway at 65mph the car started bucking and losing acceleration leaving almost no control to the driver to maneuver effectively and avoid other cars. after a terrifying experience of losing control of the car my wife and children stranded on the side of the road for hours in sub 3"
— Honda Pilot owner, 01/19/2024
Source: NHTSA Complaints Database
Most Reported Vehicles for P0841
Based on NHTSA owner complaint data.
| # | Vehicle | Reports |
|---|---|---|
| 1 | NISSAN ALTIMA | |
| 2 | VOLKSWAGEN JETTA | |
| 3 | NISSAN ROGUE | |
| 4 | DODGE JOURNEY | |
| 5 | TOYOTA COROLLA | |
| 6 | HONDA ODYSSEY | |
| 7 | HONDA PILOT | |
| 8 | SUBARU OUTBACK | |
| 9 | SUBARU LEGACY | |
| 10 | SUBARU ASCENT |
P0841 Reports by Vehicle
Detailed NHTSA complaint analysis for each vehicle model.
Frequently Asked Questions
Is it safe to drive with this transmission code?
Do I need a full transmission rebuild?
How much does a transmission repair cost?
Reported Repair Costs for P0841
Based on 4 owner-reported repair costs from NHTSA complaints.
⚠️ These are owner-reported costs, not estimates. Actual costs vary by location, labor rates, and root cause. Source: NHTSA complaints database.
What To Do Next
Possible Fixes
- 🔧 Have the code scanned with a professional-grade scanner to read freeze frame data
- 🔧 Test the relevant sensor(s) with a multimeter before replacing
- 🔧 Inspect wiring harness and connectors for damage, corrosion, or loose connections
- 🔧 Check transmission fluid level and condition; top off or change if needed
- 🔧 If DIY repair isn't feasible, get a diagnostic from a trusted mechanic ($50-150)
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1
Find your vehicle above
Click your make and model for real owner reports and common causes specific to your vehicle.
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2
Check for recalls
Go to nhtsa.gov/recalls and enter your VIN. Free repairs if covered.
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3
Get a professional diagnosis
A code alone doesn't identify the exact failed part. A diagnostic ($50–$150) pinpoints the root cause.