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Home >> Chrysler >> 2003 >> Intrepid ES, 3.5 V >> Repair and Diagnosis >> External Pages >> Different car >> Section 4 (Automatic Transmission Diagnosis) >> Diagnostic Tests >> DTC P0740: Torque Converter Clutch Control Circuit >> Diagnostic Procedure

Diagnostic Procedure

WARNING: This page is about a different car, the 2002 Dodge Intrepid, 2002 Chrysler Intrepid, 2002 Chrysler Concorde, and 2002 Chrysler 300M. However, it is still accessible from the selected car via links, so may be relevant.
  1. Using scan tool, check for other transaxle-related DTCs. If DTC P0750 and/or P0841 are also present, diagnose these DTCs first in order listed. If no other transaxle-related DTCs are present, go to next step.
  2. Using scan tool, read, record, and then erase DTCs. Drive vehicle until it reaches normal operating temperature. Perform the following 3 times: drive vehicle at 50 MPH and allow 4th gear to engage for at least 10 seconds. Close throttle, and then tip back in until throttle angle is 25-29 degrees. Start procedure over if throttle angle reaches more than 30 degrees. If TCC engaged during any of the 3 attempts, go to next step. If TCC did not engage during any of the 3 attempts, go to step  4.
  3. Conditions necessary to set DTC are not present at this time. Using wiring diagram as a guide, inspect wiring and connectors associated with circuits in question. See WIRING DIAGRAMS . Wiggle wires while checking for shorted and open circuits. Repair as necessary. DTC can also be set under extreme temperature conditions. This is usually caused by an internal transaxle problem. Ask customer if problem is only experienced under extreme hot or cold conditions. Repair as necessary.
  4. Repair transaxle as necessary and replace torque converter. See appropriate REMOVAL & INSTALLATION article in AUTOMATIC TRANSMISSIONS. Ensure to inspect valve body and replace if necessary. If valve body is okay, replace solenoid assembly. See REMOVAL & INSTALLATION in appropriate SERVICING article in AUTOMATIC TRANSMISSIONS.
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