Pinpoint Test A : DTCS P0750, P0753, P0754, P0973, P0974

A1 RETRIEVE AND RECORD ALL DTCS
- Using the diagnostic scan tool, retrieve all DTCs.
Are DTCs P0750, P0753, P0754, P0973 and/or P0974 present?

Yes For DTCs P0750, P0753 and/or P0754, GO to A2For DTC P0973, GO to A5For DTC P0974, GO to A7

No REFER to: Diagnosis By Symptom

A2 CHECK THE SHIFT SOLENOID A (SSA) CONTROL CIRCUIT FOR AN OPEN

Ignition OFF.

Disconnect Transmission Vehicle Harness C1520A .

Disconnect PCM C1551E .

Inspect the connectors for damaged or pushed-out terminals, corrosion, loose wires and missing or damaged seals.

Measure:

Positive Lead	Measurement / Action	Negative Lead
C1520A-8	Courtesy of FORD MOTOR COMPANY	C1551E-60

Is the resistance less than 3 ohms?

Yes

GO to A3

No	REPAIR the circuit.

A3 CHECK THE SHIFT SOLENOID A (SSA) FOR AN OPEN

Measure:

Positive Lead	Measurement / Action	Negative Lead
Component side resistance pin 8.	Courtesy of FORD MOTOR COMPANY	Component side resistance pin 5.

Is the resistance between 4.2 and 7.2 ohms?

Yes	INSTALL a new PCM. REFER to: Powertrain Control Module (PCM) PERFORM the Transmission Strategy Download, REFER to: Transmission Strategy Download

GO to A4

A4 CHECK SHIFT SOLENOID A (SSA) RESISTANCE

Remove the transmission internal wiring harness frame. REFER to: Transmission Internal Wiring Harness Frame Inspect for metal shavings on the exposed metal contacts or other components and clean the solenoid and transmission internal wiring harness frame terminals.

Measure:

Positive Lead	Measurement / Action	Negative Lead
SSA pin A.	Courtesy of FORD MOTOR COMPANY	SSA pin B.

Is the resistance between 4.2 and 7.2 ohms?

Yes	INSTALL a new transmission internal wiring harness frame. REFER to: Transmission Internal Wiring Harness Frame

No	INSTALL a new SSA. REFER to: Solenoid

A5 CHECK THE SHIFT SOLENOID A (SSA) CONTROL CIRCUIT FOR A SHORT TO GROUND

Ignition OFF.

Disconnect Transmission Vehicle Harness C1520A .

Disconnect PCM C1551E .

Inspect the connectors for damaged or pushed-out terminals, corrosion, loose wires and missing or damaged seals.

Measure:

Positive Lead	Measurement / Action	Negative Lead
C1520A-8	Courtesy of FORD MOTOR COMPANY	Ground

Is the resistance greater than 10, 000 ohms?

Yes

GO to A6

No	REPAIR the circuit.

A6 CHECK SHIFT SOLENOID A (SSA) FOR A SHORT TO GROUND

Remove the transmission internal wiring harness frame. REFER to: Transmission Internal Wiring Harness Frame Inspect for metal shavings on the exposed metal contacts or other components and clean the solenoid and transmission internal wiring harness frame terminals.

Measure:

Positive Lead	Measurement / Action	Negative Lead
SSA pin A.	Courtesy of FORD MOTOR COMPANY	Ground

Is the resistance less than 3 ohms?

Yes	INSTALL a new SSA. REFER to: Solenoid

No	INSTALL a new transmission internal wiring harness frame. REFER to: Transmission Internal Wiring Harness Frame

A7 CHECK THE SHIFT SOLENOID A (SSA) CONTROL CIRCUIT FOR A SHORT TO POWER

Ignition OFF.

Disconnect Transmission Vehicle Harness C1520A .

Disconnect PCM C1551E .

Inspect the connectors for damaged or pushed-out terminals, corrosion, loose wires and missing or damaged seals.

Ignition ON.

Measure:

Positive Lead	Measurement / Action	Negative Lead
C1520A-8	Courtesy of FORD MOTOR COMPANY	Ground

Is any voltage present?

Yes	REPAIR the circuit.

No	INSTALL a new PCM. REFER to: Powertrain Control Module (PCM) PERFORM the Transmission Strategy Download, REFER to: Transmission Strategy Download