Pinpoint Tests - OSC Equipped Vehicle: P0657: Testing
WARNING: This page is about a different car, the 2005 Ford RV Cutaway, 2005 Ford Econoline, 2005 Ford E450 Super Duty, and 2005 Ford Cutaway. However, it is still accessible from the selected car via links, so may be relevant.
Power to all solenoids has been interrupted. Monitor PID tspc_flg. If tspc_flg = 1, then TSPC is on. If tspc_flg = 0, then TSPC is off. CHECK for opens, short to ground and the harness disconnected. REPAIR as required. When TSPC is commanded OFF as a FMEM action, CHECK all solenoids for correct function as listed in the band, clutch, solenoid and switch application chart. For additional information on diagnosing PCM concerns, See INTRODUCTION - GASOLINE and/or INTRODUCTION -- 6.0L DIESEL articles.