Pinpoint Test A : Transmission Control Solenoids

WARNING: This page is about a different car, the 2018 Lincoln Navigator. However, it is still accessible from the selected car via links, so may be relevant.

A1 CHECK THE SOLENOID POWER CIRCUIT FOR VOLTAGE

NOTE: Read and record all DTCs.

Is the voltage greater than 11 volts?

Yes

GO to A4

GO to A2

Ignition OFF.
Disconnect: Transmission Vehicle Harness C168 .
Ignition ON.
Measure:

Positive Lead	Measurement / Action	Negative Lead
C168-9	Courtesy of FORD MOTOR COMPANY	Ground

A2 CHECK THE SOLENOID POWER CIRCUIT FOR AN OPEN

Is the resistance less than 3 ohms?

Yes

GO to A3

No	REPAIR transmission vehicle harness circuit for an open.

Ignition OFF.
Disconnect: TCM C1822
Inspect the connector for damaged or pushed out terminals, corrosion, loose wires and missing or damaged seals.
Measure:

Positive Lead	Measurement / Action	Negative Lead
C1822-47	Courtesy of FORD MOTOR COMPANY	C168-9

A3 CHECK THE SOLENOID POWER CIRCUIT FOR A SHORT TO GROUND

Is the resistance greater than 10, 000 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 Data Download procedure. REFER to: Transmission Strategy Download .

No	REPAIR the circuit.

Positive Lead	Measurement / Action	Negative Lead
C1822-47	Courtesy of FORD MOTOR COMPANY	Ground

A4 CHECK SOLENOID CONTROL CIRCUITS FOR AN OPEN

Is the resistance less than 3 ohms on the suspect circuit?

Yes

Go to A5

No	REPAIR the transmission vehicle harness circuit. CLEAR the DTCs.

Ignition OFF.

Disconnect: TCM C1822

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

Measure the resistance of the solenoid control circuits using the following chart:

Positive Lead	Measurement / Action	Negative Lead
SSA C1822-14	Courtesy of FORD MOTOR COMPANY	C168-14
SSB C1822-3	Courtesy of FORD MOTOR COMPANY	C168-15
SSC C1822-1	Courtesy of FORD MOTOR COMPANY	C168-16
SSD C1822-13	Courtesy of FORD MOTOR COMPANY	C168-21
SSE C1822-4	Courtesy of FORD MOTOR COMPANY	C168-22
SSF C1822-16	Courtesy of FORD MOTOR COMPANY	C168-23

A5 CHECK SOLENOID CONTROL CIRCUITS FOR A SHORT TO GROUND

Is the resistance greater than 10, 000 ohms on the suspect circuit?

Yes

GO to A6

No	REPAIR the transmission vehicle harness circuit. CLEAR the DTCs.

Measure the resistance between the transmission vehicle harness C1822 , harness side and ground using the following chart:

Positive Lead	Measurement / Action	Negative Lead
SSA C1822-14	Courtesy of FORD MOTOR COMPANY	Ground
SSB C1822-3	Courtesy of FORD MOTOR COMPANY	Ground
SSC C1822-1	Courtesy of FORD MOTOR COMPANY	Ground
SSD C1822-13	Courtesy of FORD MOTOR COMPANY	Ground
SSE C1822-4	Courtesy of FORD MOTOR COMPANY	Ground
SSF C1822-16	Courtesy of FORD MOTOR COMPANY	Ground

A6 CHECK SOLENOID CONTROL CIRCUITS FOR A SHORT TOGETHER WITH VOLTAGE CIRCUITS

Are the resistances greater than 10, 000 ohms?

Yes

GO to A7

No	REPAIR the transmission vehicle harness circuit. CLEAR the DTCs.

Measure:

Positive Lead	Measurement / Action	Negative Lead
C1822-14	Courtesy of FORD MOTOR COMPANY	C1822-17
C1822-14	Courtesy of FORD MOTOR COMPANY	C1822-18
C1822-14	Courtesy of FORD MOTOR COMPANY	C1822-24
C1822-14	Courtesy of FORD MOTOR COMPANY	C1822-34
C1822-14	Courtesy of FORD MOTOR COMPANY	C1822-35
C1822-14	Courtesy of FORD MOTOR COMPANY	C1822-40
C1822-14	Courtesy of FORD MOTOR COMPANY	C1822-41
C1822-14	Courtesy of FORD MOTOR COMPANY	C1822-47

Measure:

Positive Lead	Measurement / Action	Negative Lead
C1822-3	Courtesy of FORD MOTOR COMPANY	C1822-17
C1822-3	Courtesy of FORD MOTOR COMPANY	C1822-18
C1822-3	Courtesy of FORD MOTOR COMPANY	C1822-24
C1822-3	Courtesy of FORD MOTOR COMPANY	C1822-34
C1822-3	Courtesy of FORD MOTOR COMPANY	C1822-35
C1822-3	Courtesy of FORD MOTOR COMPANY	C1822-40
C1822-3	Courtesy of FORD MOTOR COMPANY	C1822-41
C1822-3	Courtesy of FORD MOTOR COMPANY	C1822-47

Measure:

Positive Lead	Measurement / Action	Negative Lead
C1822-1	Courtesy of FORD MOTOR COMPANY	C1822-17
C1822-1	Courtesy of FORD MOTOR COMPANY	C1822-18
C1822-1	Courtesy of FORD MOTOR COMPANY	C1822-24
C1822-1	Courtesy of FORD MOTOR COMPANY	C1822-34
C1822-1	Courtesy of FORD MOTOR COMPANY	C1822-35
C1822-1	Courtesy of FORD MOTOR COMPANY	C1822-40
C1822-1	Courtesy of FORD MOTOR COMPANY	C1822-41
C1822-1	Courtesy of FORD MOTOR COMPANY	C1822-47

Measure:

Positive Lead	Measurement / Action	Negative Lead
C1822-13	Courtesy of FORD MOTOR COMPANY	C1822-17
C1822-13	Courtesy of FORD MOTOR COMPANY	C1822-18
C1822-13	Courtesy of FORD MOTOR COMPANY	C1822-24
C1822-13	Courtesy of FORD MOTOR COMPANY	C1822-34
C1822-13	Courtesy of FORD MOTOR COMPANY	C1822-35
C1822-13	Courtesy of FORD MOTOR COMPANY	C1822-40
C1822-13	Courtesy of FORD MOTOR COMPANY	C1822-41
C1822-13	Courtesy of FORD MOTOR COMPANY	C1822-47

Measure:

Positive Lead	Measurement / Action	Negative Lead
C1822-4	Courtesy of FORD MOTOR COMPANY	C1822-17
C1822-4	Courtesy of FORD MOTOR COMPANY	C1822-18
C1822-4	Courtesy of FORD MOTOR COMPANY	C1822-24
C1822-4	Courtesy of FORD MOTOR COMPANY	C1822-34
C1822-4	Courtesy of FORD MOTOR COMPANY	C1822-35
C1822-4	Courtesy of FORD MOTOR COMPANY	C1822-40
C1822-4	Courtesy of FORD MOTOR COMPANY	C1822-41
C1822-4	Courtesy of FORD MOTOR COMPANY	C1822-47

Measure:

Positive Lead	Measurement / Action	Negative Lead
C1822-16	Courtesy of FORD MOTOR COMPANY	C1822-17
C1822-16	Courtesy of FORD MOTOR COMPANY	C1822-18
C1822-16	Courtesy of FORD MOTOR COMPANY	C1822-24
C1822-16	Courtesy of FORD MOTOR COMPANY	C1822-34
C1822-16	Courtesy of FORD MOTOR COMPANY	C1822-35
C1822-16	Courtesy of FORD MOTOR COMPANY	C1822-40
C1822-16	Courtesy of FORD MOTOR COMPANY	C1822-41
C1822-16	Courtesy of FORD MOTOR COMPANY	C1822-47

A7 CHECK FOR SHORT TO TRANSMISSION FLUID PUMP VPWR CIRCUIT

Is any voltage detected?

Yes	REPAIR or INSTALL a new transmission vehicle harness. REFER to: Transmission Internal Wiring Harness

GO to A8

Ignition ON.

Measure:

Positive Lead	Measurement / Action	Negative Lead
SSA C1822-14	Courtesy of FORD MOTOR COMPANY	Ground
SSB C1822-3	Courtesy of FORD MOTOR COMPANY	Ground
SSC C1822-1	Courtesy of FORD MOTOR COMPANY	Ground
SSD C1822-13	Courtesy of FORD MOTOR COMPANY	Ground
SSE C1822-4	Courtesy of FORD MOTOR COMPANY	Ground
SSF C1822-16	Courtesy of FORD MOTOR COMPANY	Ground

A8 CHECK INTERNAL WIRING HARNESS SOLENOID CONTROL CIRCUITS FOR AN OPEN CIRCUIT

Is the resistance less than 3 ohms on the suspect circuit?

Yes

GO to A9

INSTALL a new internal wiring harness, and main control harness. REFER to: Transmission Internal Wiring Harness .

Drain the transmission fluid and remove the transmission fluid pan. REFER to: Transmission Fluid Pan, Gasket and Filter .

Disconnect Shift Solenoid Connectors (A through F).

Measure resistance of the suspect solenoid control circuit of the internal wiring harness, using the tables below:SSA

Positive Lead	Measurement / Action	Negative Lead
Courtesy of FORD MOTOR COMPANY Transmission component side, pin 14	Courtesy of FORD MOTOR COMPANY	C1843-2

SSF

Positive Lead	Measurement / Action	Negative Lead
Courtesy of FORD MOTOR COMPANY Transmission component side, pin 23	Courtesy of FORD MOTOR COMPANY	C1848-2

SSC

Positive Lead	Measurement / Action	Negative Lead
Courtesy of FORD MOTOR COMPANY Transmission component side, pin 16	Courtesy of FORD MOTOR COMPANY	C1845-2

SSB

Positive Lead	Measurement / Action	Negative Lead
Courtesy of FORD MOTOR COMPANY Transmission component side, pin 15	Courtesy of FORD MOTOR COMPANY	C1844-2

SSE

Positive Lead	Measurement / Action	Negative Lead
Courtesy of FORD MOTOR COMPANY Transmission component side, pin 22	Courtesy of FORD MOTOR COMPANY	C1847-2

SSD

Positive Lead	Measurement / Action	Negative Lead
Courtesy of FORD MOTOR COMPANY Transmission component side, pin 21	Courtesy of FORD MOTOR COMPANY	C1846-2

A9 CHECK INTERNAL WIRING HARNESS SOLENOID POWER CIRCUIT FOR A SHORT TO GROUND

Is the resistance greater than 10, 000 ohms?

Yes

GO to A10

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

INSPECT main control wiring harness for chafes or bare wires.

Measure:

Positive Lead	Measurement / Action	Negative Lead
Courtesy of FORD MOTOR COMPANY Transmission component side, pin 9	Courtesy of FORD MOTOR COMPANY	Ground

A10 CHECK SOLENOID CONTROL CIRCUIT FOR AN OPEN CIRCUIT WITH TRANSMISSION HARNESS CONNECTED

Is the resistance less than 3 ohms on the suspect circuit?

Yes

GO to A11

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

Connect Transmission Vehicle Harness C168 .

Measure resistance of the suspect solenoid control circuit of the main control wiring harness, using the table below:

Positive Lead	Measurement / Action	Negative Lead
SSA C1822-14	Courtesy of FORD MOTOR COMPANY	SSA C1843-2
SSB C1822-3	Courtesy of FORD MOTOR COMPANY	SSB C1844-2
SSC C1822-1	Courtesy of FORD MOTOR COMPANY	SSC C1845-2
SSD C1822-13	Courtesy of FORD MOTOR COMPANY	SSD C1846-2
SSE C1822-4	Courtesy of FORD MOTOR COMPANY	SSE C1847-2
SSF C1822-16	Courtesy of FORD MOTOR COMPANY	SSF C1848-2

A11 CHECK MAIN CONTROL WIRING HARNESS SOLENOID POWER CIRCUIT FOR VOLTAGE AT SOLENOIDS WITH TRANSMISSION HARNESS CONNECTED

Is the voltage 11 volts or greater on the suspect circuit?

Yes

GO to A12

No	There is a terminal fitment issue or an open circuit, INSTALL a new internal wiring harness. REFER to: Transmission Internal Wiring Harness .

Connect TCM C1822 .

Ignition ON.

Measure:

Positive Lead	Measurement / Action	Negative Lead
SSA C1843-2	Courtesy of FORD MOTOR COMPANY	Ground
SSB C1844-2	Courtesy of FORD MOTOR COMPANY	Ground
SSC C1845-2	Courtesy of FORD MOTOR COMPANY	Ground
SSD C1846-2	Courtesy of FORD MOTOR COMPANY	Ground
SSE C1847-2	Courtesy of FORD MOTOR COMPANY	Ground
SSF C1848-2	Courtesy of FORD MOTOR COMPANY	Ground

A12 CHECK SOLENOID RESISTANCE

Is the shift solenoid resistance between 4.8 and 5.4 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 Data Download procedure. REFER to: Transmission Strategy Download .

No	INSTALL a new solenoid for the solenoid that failed the resistance check. REFER to: Shift Solenoids (SS) .

Disconnect the suspect solenoid connector.

Measure and record the resistance of the suspect solenoid.