HomeTrouble CodesP2753

P2753 — Transmission Fluid Cooler Control Circuitopen

Manufacturer-specificPowertrain (engine & transmission)

The P2753 code indicates that the transmission control module has detected an open circuit in the transmission fluid cooler control valve. This means the electrical path to the solenoid is interrupted, preventing the system from regulating the flow of fluid to the cooler.

Symptoms

What causes it — most likely first

1. Failed Cooler Control Solenoid

The internal coil of the solenoid has failed or broken, creating an open circuit.

2. Damaged Wiring Harness

Wires leading to the solenoid are frayed, pinched, or broken due to heat or vibration.

3. Corroded Connector

Corrosion or debris in the solenoid electrical connector is preventing a secure connection.

4. Blown Fuse

A fuse protecting the transmission control circuit has blown, interrupting power to the solenoid.

5. Faulty Transmission Control Module

An internal failure in the TCM driver circuit is preventing the signal from reaching the solenoid.

How it's diagnosed

  1. Confirm the presence of the P2753 code and check for related temperature codes.
  2. Inspect the cooler control solenoid connector for corrosion, moisture, or loose pins.
  3. Perform a continuity test on the wiring harness from the TCM to the solenoid.
  4. Measure the resistance of the cooler control solenoid using a multimeter to verify it is within specification.
  5. Verify that the TCM is sending the appropriate voltage/ground signal to the circuit when commanded.

Code facts & related codes

SystemPowertrain (engine & transmission)
StandardizationManufacturer-specific (P1/B1/C1/U1)

Frequently asked

Does this code mean my transmission needs to be rebuilt?

No, this is an electrical circuit code. It refers to the cooling control system and does not typically indicate a mechanical failure of the transmission gears or clutches.

Is it safe to drive with this code?

The vehicle is generally drivable, but the transmission may overheat during towing or heavy use, which can lead to premature wear if not addressed.

Should I replace the PCM or TCM to fix this?

No, the control module is rarely the cause of P2753. Most instances are resolved by replacing the solenoid or repairing damaged wiring.