Fault Code P0878
Code meaning, symptoms, possible causes, part number, and estimated cost.
P0878
Transmission Fluid Pressure Sensor/Switch 'B' Circuit High
This code indicates an abnormally high voltage reading in the transmission fluid pressure sensor or switch circuit ('B').
Part Details
Part Name
Transmission Fluid Pressure Sensor (B), Wiring
Reference P/N (OEM)
N/A
General part number for this fault code — not necessarily for your specific vehicle
Estimated Cost
₪300 - ₪1200
Engine Location
Transmission
Symptoms
- Harsh or rough shifting
- Transmission slipping
- Check Engine Light on
- Slow transmission response
Possible Causes
- 1Faulty transmission fluid pressure sensor
- 2Wiring short to voltage in the sensor circuit
- 3PCM/TCM internal fault
- 4Blocked fluid passages in the transmission
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