Transmission Fluid Pressure Sensor/Switch E Circuit
The P2843 code means the vehicle's onboard diagnostic system has detected: Transmission Fluid Pressure Sensor/Switch E Circuit. This is a moderate severity code.
- Keep driving?
- Short distances only
- DIY difficulty
- hard
- Estimated cost
- $200 - $900 (parts and labor)
Read and clear transmission codes. Many trans codes are caused by low or burnt fluid -- check level and color before assuming the worst.
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Basic scanners only read engine codes. This reads transmission, ABS, and airbag too.
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Common Symptoms
- Harsh shifting
- Transmission slipping
- Check Engine Light on
- Delayed gear engagement
Probable Causes (Ranked by Likelihood)
- Faulty transmission fluid pressure sensor E Very High
- Wiring issue in pressure sensor E circuit High
- Low or contaminated transmission fluid Moderate
- TCM internal fault Low
Step-by-Step Diagnostic Procedure
-
Scan for DTCs and check fluid level
-
Monitor pressure sensor E readings
-
Inspect sensor wiring and connector
-
Compare pressure readings to specifications
Frequently Asked Questions
What does pressure sensor E monitor?
Pressure sensor E monitors hydraulic pressure in a specific transmission circuit used for clutch or band application.
Can low fluid cause this?
Yes, low transmission fluid can cause incorrect pressure readings that trigger this code.
Is this a common failure?
Pressure sensors can fail over time due to heat and contamination, especially in high-mileage vehicles.
Sources
This page is built from documented references. Verify against your own service info before repair work.
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