Erratic Torque Converter Clutch (TCC) Scheduling

WARNING: This page is about a different car, the 2010 Ford Pickup, 2010 Ford F550 Super Duty, 2010 Ford F450 Super Duty, and 2010 Ford Cab & Chassis. However, it is still accessible from the selected car via links, so may be relevant.

DIAGNOSTIC ROUTINES - ERRATIC TORQUE CONVERTER CLUTCH (TCC) SCHEDULING

Possible Component	Reference/Action
253 - ROUTINE
Powertrain Control System
PCM (gasoline engines), Transmission Control Module (TCM) (diesel engines), vehicle wiring harnesses, transmission internal wiring harness, Torque Converter Clutch (TCC) solenoid, Output Shaft Speed (OSS) sensor, Transmission Range (TR) sensor, Accelerator Pedal Position (APP) sensor, Brake Pedal Position (BPP) switch, Engine Coolant Temperature (ECT) sensor, Power Take-Off (PTO) input, Four-Wheel Drive (4WD) switch, tow/haul switch Transmission Fluid Temperature (TFT) sensor, Failure Mode Effect Management enabled causing the TCC to engage, disengage then engage. DTC P0741 present	Carry out On-Board Diagnostic (OBD) tests. Refer to the INTRODUCTION - GASOLINE MODELS for diagnosis and testing of the PCM. For gasoline engines, GO to PINPOINT TEST A and GO to PINPOINT TEST B . For diesel engines, GO to PINPOINT TEST F and GO to PINPOINT TEST G . Repair as necessary. Clear the DTCs, road test and rerun OBD test.
Solenoid Body Assembly
Bolts not tightened to specification	Tighten to specification.
Filter gasket damaged	Inspect for damage. If damaged, install a new filter gasket.
Contamination	Disassemble and clean.
TCC solenoid damaged, stuck or bore damaged. Manual valve damaged, stuck or bore damaged	If damaged or parts are missing, install a new solenoid body assembly. If misassembled, reassemble correctly.
Torque Converter
Internal component failure	Remove the transmission. Inspect for damage. Refer to TORQUE CONVERTER CONTAMINATION INSPECTION . If the torque converter fails to pass the criteria for replacement or is damaged, install a new or remanufactured torque converter.