Unexpected elevated Idle Speed

WARNING: This page is about a different car, the 2004 Ford RV Cutaway, 2004 Ford Econoline, 2004 Ford E450 Super Duty, and 2004 Ford Cutaway. However, it is still accessible from the selected car via links, so may be relevant.

DIAGNOSTIC ROUTINE - UNEXPECTED ELEVATED IDLE SPEED

Possible Component	Reference/Action
262 - ROUTINE
Powertrain Control System
PCM, vehicle wiring harnesses, internal transmission wiring harness, line pressure control solenoid SSPC-A, TCC solenoid, low reverse pressure control switches PC-E, OSS, TFT, TR position sensors, TSPC driver circuit	Carry out on-board diagnostic tests. Refer to the appropriate INTRODUCTION article for diagnosis and testing of the PCM.
FMEM has been enabled, refer to Routine 266.	Go To PINPOINT TEST A: CONTROL SOLENOIDS , Go To PINPOINT TEST B: TRANSMISSION FLUID TEMPERATURE (TFT) SENSOR , Go To PINPOINT TEST C: TRANSMISSION RANGE (TR) POSITION SENSOR and Go To PINPOINT TEST D: TURBINE SHAFT SPEED (TSS), INTERMEDIATE SHAFT SPEED, AND OUTPUT SHAFT SPEED (OSS) SENSORS .
FMEM has been enabled, refer to Routine 266.	Repair as required. Clear DTCs, road test and rerun on-board diagnostic test.