Unexpected Elevated Idle Speed

WARNING: This page is about a different car, the 2005 Ford Pickup, 2005 Ford F550 Super Duty, 2005 Ford F450 Super Duty, and 2005 Ford Cab & Chassis. However, it is still accessible from the selected car via links, so may be relevant.

NOTE: The pressure switches listed in this routine will not be applicable to all vehicle applications. Some vehicles will not have the pressure switches installed in the valve body.

DIAGNOSTIC ROUTINES - 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, TSPC driver circuit, TCC solenoid, low reverse pressure control switches PC-E, (if equipped) OSS, TFT, TR-P sensors PTO input	Carry out on-board diagnostic tests. See INTRODUCTION - GASOLINE article or INTRODUCTION -- 6.0L DIESEL article for diagnosis and testing of the PCM.
	GO to PINPOINT TEST A , GO to PINPOINT TEST B , GO to PINPOINT TEST C and GO to PINPOINT TEST D .
FMEM has been enabled. Refer to Routine 266.	Repair as required. Clear DTCs, road test and rerun on-board diagnostic test.
PTO Module Assembly
Module damaged	See INTRODUCTION -- 6.0L DIESEL article for diagnosing and testing the PTO module.