C2509 Code: Meaning, Causes, and Symptoms | OBD2 Codes

C2509 – Transmission Engine Torque Select D

 

C2509 Possible Symptoms

 

Anti-Lock Brake System (ABS) Warning Light ON,Engine Light ON (or Service Engine Soon Warning Light)

 

C2509 Possible Causes

 

Faulty Transmission Control Module (TCM),Transmission Control Module (TCM) harness is open or shorted,Transmission Control Module (TCM) circuit poor electrical connection

 

C2509 Description

 

ENGINE TORQUE SELECT D TTCThe Drivetrain Control Module (DTCM) monitors the Transmission Engine Torque Select D. The DTCM sets the OBDII code when the Transmission Engine Torque Select D is not to factory specifications.