The torque converter clutch pressure control solenoid is a little electromechanical device that controls the hydraulic pressure needed to engage and release the torque converter clutch. If it experiences an electrical problem, the ECU will store a P2759 DTC.
What Transmission Do I Have?
How Serious is the Code?
A P2759 diagnostic trouble code is actually pretty serious. If the ECU cannot control the torque converter clutch, a number of transmission problems can occur, including slipping and engine stalling.
Symptoms
Symptoms of a P2759 include:
- Erratic, delayed or harsh shifts
- Transmission slipping
- Engine stalls when coming to a stop
- Transmission gets stuck in a gear
- Vehicle won’t move when in gear
- Lower MPG
- Transmission overheats
- Limp mode
Causes
- Not enough transmission fluid
- Dirty transmission fluid / filter
- Damaged wiring/connector
- Transmission fluid leak
- Malfunctioning torque converter clutch pressure control solenoid
- Defective torque converter clutch
- Bad torque converter
- Blocked pressure passage
- Valve body issue
- TCM or ECU failure
How to Diagnose the Code?
Not having enough transmission fluid or dirty transmission fluid, can actually cause the TCC pressure control solenoid to malfunction. So the first step to diagnosing a P2759 OBD2 trouble code, is to check the transmission fluid. The next step should be to check the condition of the wiring on the transmission wiring harness. If everything looks good, the torque converter clutch pressure control solenoid will have to be tested.
What Transmission Do I Have?
What Repairs Will Fix P2759?
- Change the transmission fluid and filter
- Repair transmission fluid leaks
- Clean corrosion from connectors
- Repair or replace wiring
- Replace faulty torque converter clutch pressure control solenoid
- Repair or replace a faulty torque converter clutch
- Repair or replace defective torque converter
- Flash or replace ECU/TCM
Related Codes
- P2756 – Torque Converter Clutch Pressure Control Solenoid
- P2757 – Torque Converter Clutch Pressure Control Solenoid Ctrl Circ Perf or Stuck Off
- P2758 – Torque Converter Clutch Pressure Control Solenoid Ctrl Circ Stuck On
- P2760 – Torque Converter Clutch Pressure Control Solenoid Ctrl Circ Intermittent
- P2761 – Torque Converter Clutch Pressure Control Solenoid Ctrl Circ/Open
- P2762 – Torque Converter Clutch Pressure Control Solenoid Ctrl Circ Range/Perf
- P2763 – Torque Converter Clutch Pressure Control Solenoid Ctrl Circ High
- P2764 – Torque Converter Clutch Pressure Control Solenoid Ctrl Circ Low
