05 5 spd p0715 turbin shaft speed ckt check resistance from pcm term 6/91 signal and return 83 ohms spec is 64-126 this should verify all wiring connectors splices and sensor also check pcm terminal tension and wiggled harness while monitoring for intermittents????? this vehicle has had another tech send it to ford for new pcm install and was returned the same way(not dealer fault just installed what was asked for). any ideas greatly appreciated i would hate to guess at sensor i understand it requires r/r and disassembly of trans to center support. PLEASE HELP IF U HAVE SEEN THIS!!!!!!!

PINPOINT TEST E: TURBINE SHAFT SPEED (TSS), INTERMEDIATE SHAFT SPEED (ISS) AND OUTPUT SHAFT SPEED (OSS) SENSORS
NOTE: Refer to the turbine shaft speed (TSS), intermediate shaft speed (ISS) and output shaft speed (OSS) sensor connector illustrations preceding these pinpoint tests.

Test Step Result / Action to Take
E1 ELECTRONIC DIAGNOSTICS
Check to make sure the transmission harness connector is fully seated, terminals are fully engaged in connector and in good condition before proceeding.
Connect the scan tool.
Ignition ON.
Enter the following diagnostic mode on the scan tool: Diagnostic Data Link.
Enter the following diagnostic mode on the scan tool: PCM.
Select PID/Data Monitor and Record.
Select the following PIDs: TSS, ISS, OSS.
Does vehicle enter PID/Data Monitor and Record?
Yes
REMAIN in PID/Data. GO to E2 .

No
REPEAT procedure to ENTER PID. If vehicle did not enter PID, REFER to the Powertrain Control/Emissions Diagnosis (PC/ED) manual for diagnosis of PCM.
E2 DRIVE CYCLE TEST
While monitoring the appropriate sensor PID, drive the vehicle so that the transmission upshifts and downshifts through all gears.
Does the TSS, ISS or OSS Speed PID increase and decrease with engine and vehicle speed or is the sensor signal erratic (drop to zero or near zero and return to normal operation)?
Yes
If the TSS, ISS or OSS Speed PID increase and decrease with engine and vehicle speed, CLEAR all DTCs. ROAD TEST to verify if concern is still present. If concern is still present, REFER to the Diagnosis by Symptom Index in Diagnosis By Symptom for diagnosis.

If the sensor signal is erratic, INSPECT for intermittent concern in the internal/external harness, sensor or connector.

No
If the TSS, ISS or OSS Speed PID does not increase and decrease with engine and vehicle speed, INSPECT for open or short in vehicle harness, sensor, a PCM concern or internal hardware concern.

If the sensor signal is steady, GO to E3 .
E3 CHECK RESISTANCE OF TSS, ISS OR OSS SENSOR
Disconnect the appropriate vehicle harness connector from the ISS or OSS sensor. For the TSS sensor, disconnect the vehicle harness connector from the transmission.
For ISS or OSS: Connect ohmmeter negative lead to one pin of the sensor and the positive lead to the other pin on the sensor.


For TSS: Connect ohmmeter negative lead to the signal return pin and the positive lead to the TSS signal at the transmission connector.


Record the resistance. Resistance should be as follows:

Sensor Resistance (ohms)
TSS 64-126
ISS 325-615
OSS 305-735


Is the resistance within specification for the appropriate sensor?
Yes
REFER to the Diagnosis by Symptom Index in Diagnosis By Symptom for concern diagnosis.

No
INSTALL a new sensor.

thanks for the info I did have acess to that and have checked all connectors and harness involed already with ohms reading of 83 which is in spec range. wiggle harnesses and connectors with fluke in record mode to attempt to find int fail no luck pcm has already been replaced ???? are sensors common failure has to be internal wires or sensor at this pont also can internal wires be inspected without disassembly or no ????thanks for the input it is greatly appreciated