Transmission Connector Layouts

WARNING: This page is about a different car, the 2008 Ford RV Cutaway, 2008 Ford Econoline, and 2008 Ford Cutaway. However, it is still accessible from the selected car via links, so may be relevant.

Fig 1: Transmission Vehicle Harness Connector

Courtesy of FORD MOTOR CO.

Pin Number	Circuit Function
1	NOT USED
2	Signal Return
3	Torque Converter Clutch (TCC) Solenoid
4	Vehicle Power
5	Transmission Fluid Temperature (TFT) Input
6	Electronic Pressure Control (EPC) Solenoid
7	SSA
8	SSB
9	NOT USED
10	NOT USED

Fig 2: Transmission Internal Harness Connector

Courtesy of FORD MOTOR CO.

Pin Number	Circuit Function
1	NOT USED
2	Signal Return Transmission Fluid Temperature (TFT)
3	Torque Converter Clutch (TCC)
4	Vehicle Power To Solenoid
5	Transmission Fluid Temperature (TFT)
6	Electronic Pressure Control (EPC)
7	SSA
8	SSB
9	NOT USED
10	NOT USED

Fig 3: Digital Transmission Range (TR) Sensor Connector

Courtesy of FORD MOTOR CO.

Pin Number	Circuit Function
1	NOT USED
2	Signal Return
3	TR3A
4	TR1
5	TR2
6	TR4
7	NOT USED
8	NOT USED
9	Fused Power Feed
10	Starter Control
11	Reverse
12	Starter to Starter Interrupt Relay

Fig 4: Output Shaft Speed (OSS) Sensor Harness Connector

Courtesy of FORD MOTOR CO.

Pin Number	Circuit Function
1	Signal Return
2	Output Shaft Speed (OSS) Sensor

Fig 5: Turbine Shaft Speed (TSS) Sensor Harness Connector

Courtesy of FORD MOTOR CO.

Pin Number	Circuit Function
1	Turbine Shaft Speed (TSS) Sensor
2	Signal Return

Fig 6: PCM Harness Connector

Courtesy of FORD MOTOR CO.

DIGITAL TRANSMISSION RANGE (TR) SENSOR DIAGNOSIS CHART

Selector Position	PID: TR	PID: TR_D				PID: TR_V (volts)
Selector Position	PID: TR	TR4	TR3A	TR2	TR1	TR3A
PARK	P/N	closed	closed	closed	closed	0.0 Volt
In Between	REV	closed	open	closed	closed	1.3-1.8 Volts
REVERSE	REV	open	open	closed	closed	1.3-1.8 Volts
In Between	REV	closed	open	closed	closed	1.3-1.8 Volts
NEUTRAL	NTRL	closed	open	open	closed	1.3-1.8 Volts
In Between	O/D^a	open	open	open	closed	1.3-1.8 Volts
OVERDRIVE	O/D^a	open	open	open	open	1.3-1.8 Volts
In Between	Man 2	open	closed	open	open	0.0 Volt
Manual 2	Man 2	open	closed	closed	open	0.0 Volt
In Between	Man 2	open	closed	open	open	0.0 Volt
Manual 1	Man 1	closed	closed	open	open	0.0 Volt
TR_V is the voltage at the PCM pin 19 (TR3A circuit) to signal return. "In Between" reading could be caused by a selector lever cable or digital TR sensor misaligned or a digital TR sensor circuit failure of TR1, TR2, TR3A or TR4. Readings taken from PCM signal pins for TR1, TR2, TR3A or TR4 to signal return. Voltages for TR1, TR2, TR4: 0 = 0.0 volt. 1 = 9.0-14.0 volts. Voltage for TR3A: 0 = 0.0 volt. 1 = 1.3-1.8 volts. Wiggle Test Information For Open/Shorts TR4, TR3A, TR2 and TR1 are all closed in PARK. PARK is a good position to check for intermittent open circuits (with scan tool monitoring TR_D). TR4, TR3A, TR2 and TR1 are all open in OVERDRIVE, so OVERDRIVE is a good position to check for shorts to ground. To determine the shorted components while observing TR_D, unplug the TR and see if the short goes away. If the short is still present, unplug the transmission harness and see if the short goes away. If the short is still present, then the short is in the PCM or vehicle harness. Remove the suspect circuit(s) wire from the PCM vehicle harness. If the short is still present, then the PCM has an internal failure. Otherwise the failure is in the vehicle harness.

Pin Number	Circuit Function
3	Output Shaft Speed (OSS) Sensor
4	Vehicle power
13	Electronic Pressure Control (EPC) Solenoid
15	Turbine Shaft Speed (TSS) Sensor
16	Transmission Range (TR) Sensor TR1
17	TR Sensor TR2
27	TR Sensor TR3A
28	TR Sensor TR4
29	Transmission Fluid Temperature (TFT) Sensor
41	Signal Return
42	Shift Solenoid 1 (SSA)
43	Shift Solenoid 2 (SSB)
46	Torque Converter Clutch (TCC)

^a Will read "Drive" if O/D is canceled.