Shift Concerns: Timing - Erratic/Hunting

WARNING: This page is about a different car, the 2013 Ford F-150. However, it is still accessible from the selected car via links, so may be relevant.

Possible Component	Reference/Action
212 - ROUTINE
Transmission Fluid
Incorrect level	CHECK the transmission fluid level. ADJUST transmission fluid to correct level. REFER to TRANSMISSION FLUID LEVEL CHECK .
Condition	CARRY OUT the fluid level check in Transmission Fluid Level Check.
Transmission fluid over temperature condition	REFER to Routine 257 Transmission Overheating.
Powertrain Control System
PCM electrical inputs/outputs, external vehicle wiring harnesses or main control leadframe	If DTCs are set, CLEAR the DTCs. CARRY OUT the Key ON Engine OFF (KOEO) and Key ON Engine Running (KOER) self-test. ROAD TEST the vehicle and CHECK for DTCs. If engine control DTCs return, REFER to INTRODUCTION .
Torque Converter Concerns
Torque converter	REFER to TORQUE CONVERTER OPERATION CONCERN: CYCLING/CHATTER .