Pinpoint Test H : Torque Converter Clutch Solenoid

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

H1 RETRIEVE AND RECORD ALL DTCS

Using the diagnostic scan tool, retrieve all DTCs.

Are DTCs P0740, P0742, P0743, P0744 and/or P2760 present?

Yes	For DTCs P0740, P0743 and P2760, GO to H2. For DTC P0742, P0743 and P2760, GO to H5. For DTC P0744, GO to H7.
No	GO to Symptom Chart .

H2 CHECK THE TCC SOLENOID CIRCUIT FOR AN OPEN

Ignition OFF.

Disconnect: Transmission Vehicle Harness C1520A .

Disconnect: TCM C1750 .

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
C1520A-6	CET10 (BU/GY)	C1750-3	CET10 (BU/GY)

Courtesy of FORD MOTOR COMPANY

Is the resistance less than 3 ohms?

Yes	GO to H3.
No	REPAIR the circuit.

H3 CHECK THE TCC SOLENOID FOR AN OPEN

Measure the component side resistance between.

Positive Lead		Negative Lead
Pin	Circuit	Pin	Circuit
5	-	6	-

Courtesy of FORD MOTOR COMPANY

Is the resistance between 4.0 and 7.2 ohms?

Yes	INSTALL a new TCM. REFER to Transmission Control Module (TCM) . PROGRAM the TCM with the latest calibration level. PERFORM the Solenoid Body Strategy Download procedure. REFER to Solenoid Body Strategy Download .
No	GO to H4.

H4 CHECK THE TCC RESISTANCE

Remove the solenoid body leadframe, refer to Solenoid Body Leadframe . Inspect for metal shavings on the exposed metal contacts or other components and clean the solenoid and solenoid body leadframe terminals.

Measure TCC solenoid resistance between.

Positive Lead		Negative Lead
Pin	Circuit	Pin	Circuit
A	-	B	-

Courtesy of FORD MOTOR COMPANY

Is the resistance between 4.0 and 7.2 ohms?

Yes	INSTALL a new solenoid body leadframe. REFER to Solenoid Body Leadframe .
No	INSTALL a new TCC solenoid. REFER to Solenoids .

H5 CHECK THE TCC SOLENOID CIRCUIT FOR A SHORT TO GROUND

Ignition OFF.

Disconnect: Transmission Vehicle Harness C1520A .

Disconnect: TCM C1750 .

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
C1520A-6	CET10 (BU/GY)	-	Ground

Courtesy of FORD MOTOR COMPANY

Is the resistance greater than 10, 000 ohms?

Yes	GO to H6.
No	REPAIR the circuit.

H6 CHECK THE TCC SOLENOID FOR A SHORT TO GROUND

Remove the solenoid body leadframe, refer to Solenoid Body Leadframe . Inspect for metal shavings on the exposed metal contacts or other components and clean the solenoid and solenoid body leadframe terminals.

Measure TCC solenoid resistance between.

Positive Lead		Negative Lead
Pin	Circuit	Pin	Circuit
A	-	-	Ground

Courtesy of FORD MOTOR COMPANY

Is the resistance less than 3 ohms?

Yes	INSTALL a new TCC solenoid. REFER to Solenoids .
No	INSTALL a new solenoid body leadframe. REFER to Solenoid Body Leadframe .

H7 CHECK THE TCC CIRCUIT FOR A SHORT TO VOLTAGE

Ignition OFF.

Disconnect: Transmission Vehicle Harness C1520A .

Disconnect: TCM C1750 .

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
C1520A-6	CET10 (BU/GY)	-	Ground

Courtesy of FORD MOTOR COMPANY

Is any voltage present?

Yes	REPAIR the circuit.
No	INSTALL a new TCM. REFER to Transmission Control Module (TCM) . PROGRAM the TCM with the latest calibration level. PERFORM the Solenoid Body Strategy Download procedure. REFER to Solenoid Body Strategy Download .