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Transmission Connector Layouts

WARNING: This page is about a different car, the 2009 Mercury Grand Marquis and 2009 Ford Crown Victoria. However, it is still accessible from the selected car via links, so may be relevant.
Fig 1: Transmission Vehicle Harness Connector
GF0003428Courtesy 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 Shift solenoid A (SSA)
8 Shift solenoid B (SSB)
9 Not used
10 Not used
Fig 2: Transmission Internal Harness Connector
GF0003429Courtesy 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 TFT
6 Electronic pressure control (EPC)
7 Shift solenoid A (SSA)
8 Shift solenoid B (SSB)
9 Not used
10 Not used
Fig 3: Digital Transmission Range (TR) Sensor Connector
GF0003430Courtesy of FORD MOTOR CO.
Pin Number Circuit Function
1 Not used
2 Signal return
3 TR3
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
GF0003431Courtesy 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
GF0003432Courtesy of FORD MOTOR CO.
Pin Number Circuit Function
1 Turbine shaft speed (TSS) sensor
2 Signal return
Fig 6: PCM Harness Connector
GF0014037Courtesy of FORD MOTOR CO.
DIGITAL TRANSMISSION RANGE (TR) SENSOR DIAGNOSIS CHART

Selector Position PID: TR PID: TR PID: TR3_V (volts)
TR4 TR3 TR2 TR1
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/Da open open open closed 1.3-1.8 Volts
Overdrive O/Da open open open open 1.3-1.8 Volts
In Between Man 2 open closed open open 0.0 Volts
Manual 2 Man 2 open closed closed open 0.0 Volts
In Between Man 2 open closed open open 0.0 Volts
Manual 1 Man 1 closed closed open open 0.0 Volts
  1. TR3_V is the voltage at the PCM pin 27 to signal return.
  2. "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, TR3 or TR4.
  3. Readings taken from PCM signal pins for TR1, TR2, TR3, TR4 to signal return.
    • Voltages for TR1, TR2, TR4: 
    • 0 = 0.0 volt.
    • 1 = 9.0-14.0 volts.
    • Voltage for TR3: 
    • 0 = 0.0 volt.
    • 1 = 1.3-1.8 volts.

Wiggle Test Information For Open/Shorts

    WARNING: If equipped with fire suppression system, refer to FIRE SUPPRESSION SYSTEM article for Important Safety Warnings. Failure to follow this instruction may result in serious personal injury.
  • TR4, TR3, TR2 and TR1 are all closed in PARK. PARK is a good position to check for intermittent open circuits (with diagnostic tool monitoring TR).
  • TR4, TR3, 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, unplug the TR sensor 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
11 Electronic pressure control (EPC) solenoid (PC1)
16 Transmission range (TR) sensor TR1
17 TR sensor TR2
27 TR sensor TR3
28 TR sensor TR4
29 Transmission fluid temperature (TFT) input
41 Signal return
42 Shift solenoid A (SSA)
43 Shift solenoid B (SSB)
46 Torque converter clutch (TCC)

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