Pinpoint Test K: Turbine Shaft Speed Sensor

WARNING: This page is about a different variant/trim than selected.

K1 READ AND RECORD ALL DTCS
- Connect the scan tool.
- Read and record all DTCs.
- Were DTCs P0715, P0717, P0718 and/or P0720 set?
- Yes : For DTCs P0715, P0717 and P0718, GO to K2.
  For DTC P0715 and P0720, GO to K7.
- No : GO to SYMPTOM CHART .

K2 CHECK TSS SENSOR SIGNAL CIRCUIT FOR AN OPEN

Ignition OFF.
Disconnect: Transmission Vehicle Harness C168.
Disconnect: PCM C175T.
Inspect the connectors for damaged or pushed out terminals, corrosion, loose wires and missing or damaged seals.

Measure the resistance between:

Positive Lead		Negative Lead
Pin	Circuit	Pin	Circuit
C168-19	VET33 (WH/OG)	C175T-16	VET33 (WH/OG)

Fig 1: Identifying Transmission Vehicle Harness C168 And PCM Connector Terminals

Courtesy of FORD MOTOR CO.

Is the resistance less than 5 ohms?

Yes : GO to K3.
No : REPAIR the circuit. CLEAR the DTCs.

K3 CHECK TSS SENSOR SIGNAL CIRCUIT FOR A SHORT TO GROUND

Measure the resistance between.

Positive Lead		Negative Lead
Pin	Circuit	Pin	Circuit
C168-19	VET33 (WH/OG)	-	Ground

Fig 2: Identifying Transmission Vehicle Harness C168 Connector Terminals

Courtesy of FORD MOTOR CO.

Is the resistance greater than 10, 000 ohms?

Yes : GO to K4.
No : REPAIR the circuit. CLEAR the DTC.

K4 CHECK TSS SENSOR SIGNAL CIRCUIT FOR A SHORT TO POWER

Ignition ON.

Measure the voltage between:

Positive Lead		Negative Lead
Pin	Circuit	Pin	Circuit
C168-19	VET33 (WH/OG)	-	Ground

Fig 3: Identifying Transmission Vehicle Harness C168 Connector Terminals

Courtesy of FORD MOTOR CO.

Is any voltage present?

Yes : REPAIR the circuit. CLEAR the DTC.
No : GO to K5.

K5 CHECK THE TSS SENSOR GROUND CIRCUIT

Ignition OFF.
Connect: PCM C175T.
Ignition ON.

Measure the voltage between:

Positive Lead		Negative Lead
Pin	Circuit	Pin	Circuit
C168-19	VET33 (WH/OG)	C168-9	RET24 (BN/BU)

Fig 4: Identifying Transmission Vehicle Harness C168 Connector Terminals

Courtesy of FORD MOTOR CO.

Is voltage less than 4.8 volts?

Yes : REPAIR the circuit. CLEAR the DTC.
No : GO to K6.

K6 CHECK THE SOLENOID BODY SIGNAL CIRCUIT FOR AN OPEN

Ignition OFF.
Remove the main control cover. REFER to MAIN CONTROL COVER .
Disconnect: TSS Sensor.

Measure the component side resistance between:

Positive Lead		Negative Lead
Pin	Circuit	Pin	Circuit
19	-	3	-

Fig 5: Identifying Solenoid Body Terminal Pins

Courtesy of FORD MOTOR CO.

Is the resistance greater than 0.5 ohms?

Yes : INSTALL a new solenoid body assembly. REFER to SOLENOID BODY ASSEMBLY . PERFORM the SOLENOID BODY STRATEGY DATA DOWNLOAD procedure. REFER to SOLENOID BODY STRATEGY DOWNLOAD . PERFORM the SOLENOID BODY STRATEGY DRIVE CYCLE , REFER to SOLENOID BODY STRATEGY DRIVE CYCLE .
No : INSTALL a new TSS sensor. REFER to TURBINE SHAFT SPEED (TSS) SENSOR .

K7 CHECK TSS SENSOR VPWR CIRCUIT FOR AN OPEN

Ignition OFF.
Disconnect: Transmission Vehicle Harness C168.
Inspect the connectors for damaged or pushed out terminals, corrosion, loose wires and missing or damaged seals.
Ignition ON.

Measure the voltage between:

Positive Lead		Negative Lead
Pin	Circuit	Pin	Circuit
C168-20	LE111 (VT/GN)	-	Ground

Fig 6: Identifying Transmission Vehicle Harness C168 Connector Terminals

Courtesy of FORD MOTOR CO.

Is the voltage less than 9.5 volts?

Yes : INSPECT and REPAIR vehicle harness circuit. CLEAR the DTCs. If an open circuit is not found, INSTALL a new PCM. REFER to ENGINE CONTROLS - ELECTRONIC ENGINE CONTROLS . PROGRAM the PCM with the latest calibration level. PERFORM the SOLENOID BODY STRATEGY DATA DOWNLOAD procedure. REFER to SOLENOID BODY STRATEGY DOWNLOAD . PERFORM the SOLENOID BODY STRATEGY DRIVE CYCLE , REFER to SOLENOID BODY STRATEGY DRIVE CYCLE .
No : INSTALL a new solenoid body assembly. REFER to SOLENOID BODY ASSEMBLY . PERFORM the SOLENOID BODY STRATEGY DATA DOWNLOAD procedure. REFER to SOLENOID BODY STRATEGY DOWNLOAD . PERFORM the SOLENOID BODY STRATEGY DRIVE CYCLE , REFER to SOLENOID BODY STRATEGY DRIVE CYCLE .