a
Distributor ignition (DI) system.
b
May also be generated by other non-electronic-related transmission hardware condition.
c
Output circuit check, generated only by electrical conditions.
Rotunda Transmission Tester
The Transmission Tester is used to diagnose the electronically controlled transmission and is used in conjunction with the pinpoint tests. The tests should be carried out
in order. Installing the Transmission Tester allows separation of the vehicle electronics from transmission electronics. Refer to the Transmission Tester manual for these
tests and instructions.
Digital Transmission Range (TR) Sensor Testing
Resistance/Continuity Test
Switch Test—PARK/NEUTRAL, Backup Lamp and Optional Circuits
Transmission Connector Layouts
For connector number and pin location, refer to the Wiring Diagram Manual.
Transmission Vehicle Harness Connector
Digital Transmission Range (TR) Sensor Connector
P0717 TSS Insufficient Input. PCM has detected an intermittent
TSS signal.
Harsh shifts, or erratic shifts. Set DTC,
May flash TCIL.
GO to Pinpoint Test E.
P0718 TSS TSS Signal Noisy. PCM has detected a noisy TSS
sensor signal.
Harsh shifts, or erratic shifts. Set DTC.
May flash TCIL.
GO to Pinpoint Test E.
P0720 OSS Insufficient Input from
OSS Sensor.
PCM has detected a loss of OSS
signal during operation.
Set DTC, Flash TCIL, May light MIL. GO to Pinpoint Test E.
P0721 OSS OSS Signal Noisy. PCM has detected a noisy OSS
sensor signal.
Set DTC. May flash TCIL. GO to Pinpoint Test E.
P0722 OSS Insufficient Input from
OSS Sensor.
PCM has detected a loss of OSS
signal during operation.
Set DTC. May light TCIL. GO to Pinpoint Test E.
P1781 4x4L 4x4 low switch failure. Switch closed or shorted during
KOEO.
Early or delayed shifts. Refer to the Powertrain
Control/Emissions Diagnosis
(PC/ED) manual.
P1729 4x4L 4x4 low switch failure. Circuit open/closed. Shorted
during KOEO.
Early or delayed shifts. Refer to the Powertrain
Control/Emissions Diagnosis
(PC/ED) manual.
12-Pin Connector Description PCM Connector Pin
1 Vehicle Power (VPWR) 71, 97
2 Shift Solenoid B 1
3 Shift Solenoid A 27
4 Torque Converter Clutch 28
5 Coast Clutch Solenoid 53
6 — —
7 Transmission Fluid Temperature Sensor 37
8 Signal Return (SIG RTN) 91
9 — —
10 — —
11 Electronic Pressure Control 81
12 Electronic Pressure Control Power 71, 97
13 Solenoid Body Connector —
14 Harness Connector —
http://www.fordtechservice.dealerconnection.com/pubs/content/~WS21/~MUS~LEN/19/S
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