A transmission cooler is designed to remove excess heat from the transmission fluid, much like the radiator does for your engine. The P2753 DTC gets triggered when there is an electrical issue with the transmission control valve circuit.
How Serious is the Code?
A transmission control valve is designed to route transmission fluid the transmission cooler when the operating temperatures are elevated. If the control system is not functioning properly, excess heat can build inside the transmission and cause serious damage to the internal components. Shifting performance will also be affected. So yes, a P2753 diagnostic trouble code is actually pretty serious.
Symptoms of a P2753 include:
- Harsh shifts
- Erratic shifts
- Transmission overheats
- Damaged/shorted wiring
- Damaged/corroded connectors
- Blown transmission cooler fuse
- Transmission cooler control valve failure
- Transmission cooler valve position sensor failure
- Automatic transmission cooler failure
How to Diagnose the Code?
Due to the complexity all of this type of transmission cooler system, diagnosing a P2753 OBDII trouble code often requires specialized diagnostic computers. Of course the wiring and connectors carefully inspected for signs of damage. But application-specific diagnostic equipment may still be needed to determine the cause of the problem.
What Repairs Will Fix P2753?
- Repair damaged wiring
- Repair damaged connectors
- Replace fuse
- Repair/replace transmission cooler control valve
- Replace transmission cooler valve position sensor
- Repair/replace transmission cooler
- Reprogram ECU/TCM
- P2754 – Trans Fluid Cooler Ctrl Circ Low OBD-II Trouble Code
- P2755 – Trans Fluid Cooler Ctrl Circ High OBD-II Trouble Code