A P2757 DTC gets saved when the ECU detects a problem with the torque converter clutch pressure control solenoid. This means that the TCC solenoid is either not working properly, or it’s stuck in the off position.
What Transmission Do I Have?
How Serious is the Code?
The P2757 diagnostic trouble code is very serious, because it means the torque converter clutch is not able to engage and disengage when it’s commanded to. As a result, a number of drivability issues can happen including slipping, failed gear engagement and engine stalling.
Symptoms
Symptoms of a P2757 include:
- Delayed, harsh or erratic shifts
- Slipping through the gears
- Engine stalling
- Getting ‘stuck’ in a gear
- Vehicle won’t move when in gear
- Decreased fuel economy
- Transmission overheats
- Limp mode
Causes
- Low transmission fluid level
- Dirty transmission fluid / filter
- Damaged wiring/connector
- Transmission fluid leak
- Faulty torque converter clutch pressure control solenoid
- Faulty torque converter clutch
- Faulty torque converter
- Internal pressure issue
- Valve body issue
- ECU or TCM failure
How to Diagnose the Code?
The first thing that should be considered when trying to diagnose a P2757 OBD2 trouble code, is the level and condition of the transmission fluid. The next thing that should be considered is condition of the wiring and connectors on the transmission wiring harness. If all of these things check out, then the TCC pressure control solenoid will have to be tested with a voltmeter.
What Transmission Do I Have?
What Repairs Will Fix P2757?
- 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
- P2758 – Torque Converter Clutch Pressure Control Solenoid Ctrl Circ Stuck On
- P2759 – Torque Converter Clutch Pressure Control Solenoid Ctrl Circ Electrical
- 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
