Mitsubishi P0841 Error Code: How to Fix It

Hard 3-5 hours High Severity Verified June 2026
Error Code
P0841
Brand
Mitsubishi
Product Type
automotive
Severity
High
DIY Difficulty
Hard
Estimated Fix Time
3-5 hours
The Mitsubishi P0841 error code indicates a problem with your transmission fluid pressure sensor or switch circuit, specifically that the sensor readings are outside the expected range. This can cause transmission shifting problems, slipping, or complete transmission failure if not addressed promptly.
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Tools You'll Need

How to Fix Error Code P0841

  1. Scan for Additional Codes

    Park on level ground and engage parking brake before starting diagnostics
  2. Check Transmission Fluid Level and Condition

    Engine and transmission will be hot - use caution to avoid burns
  3. Inspect Transmission Wiring Harness

    Disconnect battery negative terminal before working on electrical connections
  4. Test Sensor Voltage and Resistance

  5. Replace Transmission Fluid Pressure Sensor

    Wear safety glasses and gloves - transmission fluid can be harmful to skin and eyes
  6. Refill Fluid and Test System

    Use only manufacturer-specified transmission fluid type

Parts You May Need

Transmission fluid pressure sensor
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Transmission filter
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Transmission oil pan gasket
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Transmission fluid
Check Price on Amazon
Transmission fluid pressure sensor
Check Price on Amazon
Transmission filter
Check Price on Amazon
Transmission oil pan gasket
Check Price on Amazon
Transmission fluid
Check Price on Amazon
Transmission fluid pressure sensor
Check Price on Amazon
Transmission filter
Check Price on Amazon
Transmission oil pan gasket
Check Price on Amazon
Transmission fluid
Check Price on Amazon
Transmission fluid pressure sensor
Check Price on Amazon
Transmission filter
Check Price on Amazon
Transmission oil pan gasket
Check Price on Amazon
Transmission fluid
Check Price on Amazon
Transmission fluid pressure sensor
Check Price on Amazon
Transmission filter
Check Price on Amazon
Transmission oil pan gasket
Check Price on Amazon
Transmission fluid
Check Price on Amazon
Transmission fluid pressure sensor
Check Price on Amazon
Transmission filter
Check Price on Amazon
Transmission oil pan gasket
Check Price on Amazon
Transmission fluid
Check Price on Amazon
Transmission fluid pressure sensor
Check Price on Amazon
Transmission filter
Check Price on Amazon
Transmission oil pan gasket
Check Price on Amazon
Transmission fluid
Check Price on Amazon
Transmission fluid pressure sensor
Check Price on Amazon
Transmission filter
Check Price on Amazon
Transmission oil pan gasket
Check Price on Amazon
Transmission fluid
Check Price on Amazon
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When to Call a Professional

Call a professional transmission specialist if you're not comfortable working with transmission components, if multiple transmission codes are present, or if the problem persists after sensor replacement. Complex internal transmission problems require specialized tools and expertise.

Frequently Asked Questions

Can I drive with Mitsubishi P0841 error code?
You should avoid driving with P0841 as it indicates transmission pressure problems that can cause sudden shifting issues or complete transmission failure. Have it diagnosed and repaired as soon as possible.
What causes Mitsubishi P0841 transmission pressure sensor error?
Common causes include faulty transmission fluid pressure sensor, damaged wiring harness, low or contaminated transmission fluid, clogged transmission filter, or internal transmission problems affecting fluid pressure.
How much does it cost to fix P0841 on a Mitsubishi?
Repair costs range from $150-400 for sensor replacement to $800-1500 if internal transmission components are damaged. Early diagnosis and repair typically costs less than waiting until transmission fails completely.
Will P0841 cause my Mitsubishi transmission to slip?
Yes, P0841 can cause transmission slipping, harsh shifts, delayed engagement, or stuck gears because the transmission control module cannot properly regulate fluid pressure without accurate sensor readings.