What Does P0750 Mean?
The pressure control solenoid circuit is exhibiting intermittent electrical behavior. The TCM has detected the solenoid signal periodically dropping out or fluctuating, causing inconsistent transmission line pressure. This can cause shifts that alternate between too harsh and too soft unpredictably.
Common Causes
35%
Loose or corroded transmission connector causing intermittent contact on pressure control solenoid circuit
25%
Intermittent wiring fault in the pressure control solenoid circuit
20%
Pressure control solenoid with intermittent internal failure (thermal-related coil open)
12%
TCM/PCM intermittent solenoid driver issue
8%
Intermittent ground connection for the solenoid circuit
Diagnostic Steps
1
Wiggle the transmission connector and wiring harness while monitoring line pressure or solenoid duty cycle — look for dropouts or fluctuations.
2
Inspect the transmission connector carefully for corrosion, water damage, or loose pins.
3
Measure solenoid resistance repeatedly — flex the wiring and connector during testing to provoke the intermittent fault.
4
Monitor line pressure during a road test over varying conditions — correlate pressure anomalies with shift quality complaints.
5
If the fault cannot be provoked, inspect the internal transmission harness at known failure points for heat damage or wire fatigue.
Estimated Repair Cost
$100 - $1,200
Parts + labor, varies by vehicle and location
The pressure control solenoid circuit is exhibiting intermittent electrical behavior. The TCM has detected the solenoid signal periodically dropping out or fluctuating, causing inconsistent transmission line pressure. This can cause shifts that alternate between too harsh and too soft unpredictably.
The most common cause of P0750 (Pressure Control Solenoid Intermittent) is: Loose or corroded transmission connector causing intermittent contact on pressure control solenoid circuit
Typical repair costs for P0750 range from $100 to $1,200, depending on the vehicle, location, and whether you do it yourself or go to a shop.
The vehicle is drivable but may experience unpredictable shift quality changes. This is generally not a safety hazard but can be distracting. Repair within a few weeks to prevent long-term internal damage from improper shift pressures.
Start by connecting an OBD2 scanner to read the code and any freeze frame data. Then follow the diagnostic steps specific to P0750 to identify the root cause.
OBDHut Mobile App
Scan codes directly from your car with the OBDHut app.
Coming Soon
Quick Info
Category
Powertrain
System
Automatic Transmission — Hydraulic Control
Difficulty
Type
Generic (SAE)
Recommended Tools
OBD2 Scanner
A quality scan tool helps you read codes, view live data, and clear faults.
