Code result

P0841

Transmission Fluid Pressure Sensor/Switch A Circuit Range/Performance

Moderate severity

What it means

TCM detects rationality fault between fluid pressure sensor A signal and commanded line pressure during defined operating conditions.

Is it safe to drive?

Use caution

The vehicle is usually drivable for short distances, but the problem can worsen or affect emissions. Diagnose and repair as soon as practical.

Most likely causes

  • Sensor failed

    high

    One of the most commonly reported causes for this code — check this first.

  • Low ATF level

    medium

    A plausible cause — test and verify before replacing parts.

  • Sensor element aged beyond calibration window

    low

    Less common, but worth ruling out after the more likely causes.

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