Fault Code P0778
Code meaning, symptoms, possible causes, part number, and estimated cost.
P0778
Pressure Control Solenoid 'B' Electrical
This code indicates an electrical fault in the 'B' pressure control solenoid circuit within the transmission. This can prevent the solenoid from operating correctly and cause gear shifting problems. There may be shifting malfunctions or an emergency mode.
Part Details
Part Name
Pressure Control Solenoid 'B'
Reference P/N (OEM)
N/A
General part number for this fault code — not necessarily for your specific vehicle
Estimated Cost
₪700 - ₪2500
Engine Location
Transmission
Symptoms
- Irregular or hard gear shifts
- Vehicle enters limp mode
- Increased fuel consumption
- Check Engine Light on
Possible Causes
- 1Faulty wiring or short in the solenoid circuit
- 2Loose connection or corrosion in the connector
- 3Faulty 'B' pressure control solenoid (internal electrical fault)
- 4Defective Transmission Control Module (TCM)
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