What Does P2759 Mean?
The TCM has detected an electrical problem in the TCC pressure control solenoid control circuit. This indicates issues with voltage, current draw, resistance, or ground integrity in the solenoid circuit that don't fit the specific criteria for open or short conditions.
Common Causes
35%
Damaged or corroded transmission connector pins
30%
Faulty TCC pressure control solenoid with internal electrical fault
20%
Chafed or damaged wiring harness creating resistance or intermittent connection
10%
Poor ground connection at transmission or TCM
5%
TCM internal driver circuit failure
Diagnostic Steps
1
Step 1: Inspect transmission external connector for corrosion, bent pins, or moisture intrusion
2
Step 2: Measure solenoid resistance with multimeter (typically 10-30 ohms) and compare to specifications
3
Step 3: Check voltage supply to solenoid (should see battery voltage with key on) and ground integrity
4
Step 4: Perform voltage drop test on both power and ground circuits during solenoid operation
5
Step 5: Monitor solenoid current draw with scan tool or amp clamp during activation (typically 0.5-2.0 amps)
Estimated Repair Cost
$150 - $900
Parts + labor, varies by vehicle and location
The TCM has detected an electrical problem in the TCC pressure control solenoid control circuit. This indicates issues with voltage, current draw, resistance, or ground integrity in the solenoid circuit that don't fit the specific criteria for open or short conditions.
The most common cause of P2759 (Torque Converter Clutch Pressure Control Solenoid Control Circuit Electrical) is: Damaged or corroded transmission connector pins
Typical repair costs for P2759 range from $150 to $900, depending on the vehicle, location, and whether you do it yourself or go to a shop.
Vehicle is generally safe to drive short distances but may experience erratic shifting, poor fuel economy, or transmission overheating. Electrical faults can worsen and affect other transmission functions.
Start by connecting an OBD2 scanner to read the code and any freeze frame data. Then follow the diagnostic steps specific to P2759 to identify the root cause.
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Quick Info
Category
Powertrain
System
Automatic Transmission
Difficulty
Type
Generic (SAE)
Recommended Tools
OBD2 Scanner
A quality scan tool helps you read codes, view live data, and clear faults.
