Pinpoint Test U: Pressure Control Solenoid A

WARNING: This page is about a different car, the 2013 Ford Explorer. However, it is still accessible from the selected car via links, so may be relevant.

U1 RETRIEVE AND RECORD ALL DTCS
- Using the diagnostic scan tool, retrieve all DTCs.
Are DTCs P0748, P0960, P0961, P0962 and/or P0963 present?
- Yes : For DTCs P0748 and P0960, GO to U2 .
  For DTC P0748, P0961 and P0962, GO to U4.
  
  For DTC P0748 and P0963, GO to U6.
- No : GO to SYMPTOM CHART .

U2 CHECK THE PCA SOLENOID CIRCUIT FOR AN OPEN

Ignition OFF.
Disconnect: Transmission Vehicle Harness C168 .
Disconnect: PCM C1551E .
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
C168-18	CET09 (YE/VT)	C1551E-59	CET09 (YE/VT)

Fig 1: Transmission Vehicle Harness Connector (C168) And PCM (C1551E)

Courtesy of FORD MOTOR CO.

Is the resistance less than 3 ohms?

Yes : GO to U3 .
No : REPAIR the circuit.

U3 CHECK THE PCA SOLENOID FOR AN OPEN

Measure the component side resistance between.

Positive Lead		Negative Lead
Pin	Circuit	Pin	Circuit
18	-	15	-

Fig 2: Identifying PCA Connector

Courtesy of FORD MOTOR CO.

Is the resistance between 4.0 and 7.2 ohms?

Yes : INSTALL a new PCM. REFER to the appropriate PCM in REMOVAL AND INSTALLATION . PERFORM the Solenoid Body Strategy Data Download procedure. REFER to SOLENOID BODY STRATEGY DOWNLOAD .
No : REMOVE the main control cover. REFER to MAIN CONTROL COVER - 3.5L GTDI . INSPECT the solenoid body for metal shavings on the exposed metal contacts or other components. CLEAN the solenoid body and RECHECK the resistance value. If the resistance value is out of specification and a short to ground is not found, 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 .

U4 CHECK THE PCA SOLENOID CIRCUIT FOR A SHORT TO GROUND

Ignition OFF.
Disconnect: Transmission Vehicle Harness C168 .
Disconnect: PCM C1551E .
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
C168-18	CET09 (YE/VT)	-	Ground

Fig 3: Transmission Vehicle Harness Connector (C168) And PCM (C1551E)

Courtesy of FORD MOTOR CO.

Is the resistance greater than 10, 000 ohms?

Yes : GO to U5 .
No : REPAIR the circuit.

U5 CHECK THE LPC SOLENOID FOR A SHORT TO GROUND

Measure the component side resistance between.

Positive Lead		Negative Lead
Pin	Circuit	Pin	Circuit
18	-	-	Ground

Fig 4: Identifying LPC Connector

Courtesy of FORD MOTOR CO.

Is the resistance less than 3 ohms?

Yes : REMOVE the main control cover. REFER to MAIN CONTROL COVER - 3.5L GTDI . INSPECT the solenoid body for metal shavings on the exposed metal contacts or other components. CLEAN the solenoid body and RECHECK the resistance value. If the resistance value is out of specification and a short to ground is not found, 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 .
No : INSTALL a new PCM. REFER to the appropriate PCM in REMOVAL AND INSTALLATION . PERFORM the Solenoid Body Strategy Data Download procedure. REFER to SOLENOID BODY STRATEGY DOWNLOAD .

U6 CHECK THE PCA SOLENOID CIRCUIT FOR A SHORT TO VOLTAGE

Ignition OFF.
Disconnect: Transmission Vehicle Harness C168 .
Disconnect: PCM C1551E .
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
C168-18	CET09 (YE/VT)	-	Ground

Fig 5: Transmission Vehicle Harness Connector (C168) And PCM (C1551E)

Courtesy of FORD MOTOR CO.

Is any voltage present?

Yes : REPAIR the circuit.
No : INSTALL a new PCM. REFER to the appropriate PCM in REMOVAL AND INSTALLATION . PERFORM the Solenoid Body Strategy Data Download procedure. REFER to SOLENOID BODY STRATEGY DOWNLOAD .