Unexpected Elevated Idle Speed
WARNING: This page is about a different car, the 2011 Ford F550 Super Duty and 2011 Ford F450 Super Duty. However, it is still accessible from the selected car via links, so may be relevant.
DIAGNOSTIC ROUTINES - UNEXPECTED ELEVATED IDLE SPEED
| Possible Component |
Reference/Action |
| 262 - ROUTINE |
| Powertrain Control System |
- PCM, vehicle wiring harnesses, internal transmission wiring harness, Shift Solenoid Pressure Control A (SSPCA), Transmission Solenoid Power Control driver circuit, Torque Converter Clutch (TCC) solenoid, Output Shaft Speed (OSS) sensor, Transmission Fluid Temperature (TFT) sensor, Transmission Range (TR) sensor Power Take-Off (PTO) input
|
- CARRY OUT On-Board Diagnostic (OBD) tests. REFER to the
INTRODUCTION
article for diagnosis and testing of the PCM. For diagnosing TCC
solenoid, GO to PINPOINT TEST A . For diagnosing TFT
sensor, GO to PINPOINT TEST B . For diagnosing TR
sensor, GO to PINPOINT TEST C . For diagnosing OSS
sensor, GO to PINPOINT TEST D . For diagnosing PCA
, GO to PINPOINT TEST E . REPAIR as necessary. CLEAR the DTCs, ROAD TEST the vehicle and RERUN the OBD
test.
- Refer to Routine 265.
|
- Failure Mode Effect Management has been enabled.
|
| PTO
Module Assembly |
- REFER to the
INTRODUCTION
article for diagnosing and testing the PTO
module.
|
|
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