What Does P1755 Mean?
The transmission pressure control solenoid 'A' has an electrical short circuit. This prevents proper transmission line pressure regulation, which can cause harsh shifts, slipping, or failure to engage gears.
Safety Warning
Vehicle may experience sudden loss of gears, unexpected harsh shifts, or complete transmission failure. Should not be driven until repaired.
Common Causes
35%
Shorted pressure control solenoid windings internally
30%
Damaged or chafed wiring harness causing short to ground or power
20%
Corroded or moisture-damaged transmission control module connector
15%
Failed transmission control module (TCM) driver circuit
Diagnostic Steps
1
Step 1: Inspect transmission harness connector for corrosion, moisture, and damaged pins
2
Step 2: Disconnect pressure control solenoid and measure resistance; compare to specifications (typically 3-30 ohms)
3
Step 3: Check for short to ground by measuring resistance between solenoid connector terminals and ground
4
Step 4: Inspect wiring harness for chafing, burns, or damage along entire length
5
Step 5: If wiring and solenoid test good, test TCM output driver circuit or substitute known-good TCM
Estimated Repair Cost
$200 - $800
Parts + labor, varies by vehicle and location
The transmission pressure control solenoid 'A' has an electrical short circuit. This prevents proper transmission line pressure regulation, which can cause harsh shifts, slipping, or failure to engage gears.
The most common cause of P1755 (Pressure Control Solenoid "A" Short Circuit) is: Shorted pressure control solenoid windings internally
Typical repair costs for P1755 range from $200 to $800, depending on the vehicle, location, and whether you do it yourself or go to a shop.
Vehicle may experience sudden loss of gears, unexpected harsh shifts, or complete transmission failure. Should not be driven until repaired.
Start by connecting an OBD2 scanner to read the code and any freeze frame data. Then follow the diagnostic steps specific to P1755 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
Difficulty
Type
Manufacturer
Recommended Tools
OBD2 Scanner
A quality scan tool helps you read codes, view live data, and clear faults.
