What Does P1750 Mean?
The secondary pressure solenoid is operating outside its expected performance range or response time. This indicates the solenoid may be mechanically degraded or responding sluggishly to control commands.
Common Causes
35%
Worn or sticking secondary pressure solenoid valve
30%
Contaminated transmission fluid causing solenoid restriction
20%
Internal transmission fluid passages blocked or restricted
15%
Intermittent wiring harness connection or high resistance
Diagnostic Steps
1
Step 1: Check transmission fluid color, odor, and level for signs of overheating or contamination
2
Step 2: Measure solenoid resistance and compare to specification (verify within range)
3
Step 3: Perform solenoid response test using bidirectional controls while monitoring pressure sensor data
4
Step 4: Check for voltage drop in solenoid power and ground circuits under load
5
Step 5: Remove valve body and inspect solenoid for mechanical freedom and debris in passages
Estimated Repair Cost
$200 - $1,200
Parts + labor, varies by vehicle and location
The secondary pressure solenoid is operating outside its expected performance range or response time. This indicates the solenoid may be mechanically degraded or responding sluggishly to control commands.
The most common cause of P1750 (Secondary Pressure Solenoid Circuit Range/Performance) is: Worn or sticking secondary pressure solenoid valve
Typical repair costs for P1750 range from $200 to $1,200, depending on the vehicle, location, and whether you do it yourself or go to a shop.
Irregular pressure control may cause harsh or soft shifts, potentially leading to clutch damage. Vehicle is generally safe to drive short distances with caution.
Start by connecting an OBD2 scanner to read the code and any freeze frame data. Then follow the diagnostic steps specific to P1750 to identify the root cause.
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Quick Info
Category
Powertrain
System
Automatic Transmission
Difficulty
Type
Manufacturer
Recommended Tools
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