P0752

P0752 indicates shift solenoid A is mechanically stuck in the on (energized/applied) state, which the TCM detects by commanding the solenoid off and seeing the shift behavior fail to release — typically expressed as the transmission stuck in a single gear or harsh holds. Cheapest-first ladder: scan for companion codes that narrow the gear involved; pull the pan and inspect the solenoid screen and pan magnet for debris that physically pins the shift solenoid spool; bench-test the solenoid for free movement and proper resistance; inspect the valve body bore the solenoid feeds for wear or scoring before reinstalling. Caveat: a P0752 that returns after a solenoid replacement almost always means the valve body bore is worn or the separator plate is leaking.

Vehicle-specific patterns: 1995-2003 Ford Explorer and Ranger with the 5R55E set P0752 from a sticking shift solenoid A and a worn EPC/shift valve in the valve body. 2004-2009 Chevrolet trucks with the Allison 1000/2000 set P0752 when shift solenoid A sticks from contamination after a torque converter or clutch failure. 2006-2013 BMW 3/5 series with the ZF 6HP19/6HP21 set P0752 when the mechatronic shift solenoid sticks from internal wear and adapter sleeve leakage. 2001-2008 Chrysler minivans with the 41TE/41AE set P0752 from solenoid pack failure. Estimated repair: $280 to $3,200.