The Lemon Index

Check engine light · Engine codes

P0841: Transmission Fluid Pressure Sensor/Switch A Circuit Range/Performance.

Powertrain · GenericP0841
Fix soon
What it means

A transmission fluid pressure reading doesn't match the gear the computer expects.

How serious

Fix soon. Book a shop visit this week. Stop driving if the car slips, shakes, overheats or warns you.

Where a shop starts

Failing pressure switch. Then: low fluid; valve body fault.

Owners named P0841 in 29 complaints to the U.S. government, most often on the Nissan Altima.

Models that report it most

Complaints that name P0841, by model. Raw counts, not a failure rate: popular models get more complaints. Tap a model for its years, mileage and what owners say fixed it.

P0841 by model: P0841 Nissan Altima (10)

The details

What P0841 means

A transmission fluid pressure reading doesn't match the gear the computer expects.

Can I drive with P0841?

Fix soon. Book a shop visit this week. Stop driving if the car slips, shakes, overheats or warns you.

31% of the owner complaints that name P0841 also say the car transmission slips or shifts hard. A complaint can describe more than one problem, so this doesn't prove the code caused it.

Common causes of P0841
  • Failing pressure switch
  • Low fluid
  • Valve body fault

A shop should confirm the cause with a scan and tests before replacing parts.

What owners describe
  • Transmission slips or shifts hard: 31% of complaints
  • Loses power or goes into limp mode: 28% of complaints
  • Shakes, runs rough or misfires: 14% of complaints
  • Stalls or shuts off: 10% of complaints

Share of complaints naming the code whose text also mentions each problem.

Model years that report P0841 most

2016 Nissan Altima (6), 2013 Volkswagen Jetta (3), 2013 Nissan Altima (2), 2015 Volkswagen Jetta (2).

Related codes

P0840 P0843 P0845 P0846 P0850 P0826 P0867 P0868

Quick answers

What does P0841 mean?

Transmission Fluid Pressure Sensor/Switch A Circuit Range/Performance. A transmission fluid pressure reading doesn't match the gear the computer expects.

Can I drive with P0841?

Fix soon. Book a shop visit this week. Stop driving if the car slips, shakes, overheats or warns you.

What causes P0841?

Failing pressure switch; Low fluid; Valve body fault.

Counts: NHTSA owner complaints whose text names P0841. A complaint is an owner's report, not a diagnosis. Meanings: the standard SAE J2012 definitions in our own words; manufacturer codes only where verified for that make. General information, not repair advice for your car.

Updated · Free to use with credit: Source: The Lemon Index (lemonindex.com). Get the data

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