Fix P2753: STEP-BY-STEP diagnostic GUIDE!

The P2753: Transmission Fluid Cooler Control Circuit/Open code indicates that there is an open circuit or disconnected wiring in the transmission fluid cooler control circuit. This can be caused by a problem with the cooler itself, faulty or disconnected wiring, or an issue with the control module. The transmission fluid cooler is essential for maintaining proper fluid temperatures to prevent overheating.

P2753 – Quick Overview

Code	Information
Meaning	P2753: Transmission Fluid Cooler Control Circuit/Open
Is it serious?	Yes, an open circuit can prevent the transmission fluid cooler from operating properly, leading to potential overheating and transmission damage.
Possible causes	– Open circuit or disconnected wiring in transmission fluid cooler control circuit – Faulty cooler or connector – Control module issues
How to diagnose?	– Inspect and test transmission fluid cooler control circuit – Check for open circuits and disconnected wiring – Verify cooler and connector integrity – Replace damaged components as needed

P2753 Meaning

The P2753: Transmission Fluid Cooler Control Circuit/Open code indicates that there is no continuity in the transmission fluid cooler control circuit, often caused by an open circuit or disconnection. This may result from broken wiring, a disconnected connector, a faulty cooler, or control module malfunctions. If this issue is not addressed, the transmission fluid cooler will not function properly, increasing the risk of transmission overheating and damage.

Step-by-step diagnostic guide

Action	Description	Tools Needed
Check for Other Codes	Use an OBD-II scanner to identify any additional related codes. Additional codes may provide more context and help narrow down the specific area of the open circuit issue.	OBD-II Scanner
Inspect Transmission Fluid Cooler Control Circuit	Visually inspect the entire transmission fluid cooler control circuit for any visible damage. Ensure there are no disconnected or loose connectors in the circuit.	Flashlight, Safety Gloves
Check for Open Circuits and Disconnected Wiring	Use a multimeter to check the continuity of the wiring in the transmission fluid cooler circuit. Look for open circuits or disconnected wiring, which would prevent the cooler from operating.	Multimeter
Verify Cooler and Connector Integrity	Inspect the cooler and its associated connectors for signs of damage, wear, or corrosion. Ensure that the connectors are properly secured to maintain a reliable circuit.	Flashlight, Multimeter
Test the Control Module	Use a diagnostic tool to verify that the control module is sending the appropriate signals to the transmission fluid cooler. An issue with the control module could also result in a failure of the cooler circuit.	Diagnostic Tool, Manufacturer Software
Replace Damaged Components as Needed	Replace any damaged components, such as wiring, connectors, or the cooler itself, that are found to be faulty. If the control module is the cause, repair or replacement may be required.	Replacement Cooler, Wiring Repair Kit
Clear the Code and Test Drive	After completing the necessary repairs, use an OBD-II scanner to clear the P2753 code. Conduct a test drive to ensure the transmission cooler operates properly and that the issue has been resolved.	OBD-II Scanner
Recheck for Codes	Perform a final scan to confirm that the P2753 code has not returned. If the code reappears, further diagnostics may be necessary to address the underlying issue.	OBD-II Scanner