Workshop

FORD 5R110W TorqShift

(1)
(2)
(3)
(4)
Turbine Shaft And
Intermediate Shaft
Speed Sensor
Gray/Orange
Green/White
Pink/White
Black/White
View Looking Into
Turbine Shaft And
Intermediate Shaft Speed
Sensor Connector
TSS Sig
Grnd
Ref Volt
ISS Sig
Output Shaft
Speed Sensor
(TSS) Terminals 1 and 3 = 325-485 Ohms @ 70°F
(OSS) Terminals 1 and 2 = 325-485 Ohms @ 70°F
(ISS) Terminals 1 and 4 = 325-485 Ohms @ 70°F
Pink/White
(1)
(2)
(3)
Black/White
Blue/Yellow
View Looking Into
Output Shaft Speed
Sensor Connector
Grnd
Ref Volt
OSS Sig
Turbine Shaft Speed (TSS) Sensor and
Intermediate Shaft Speed (ISS) Sensor
Output Shaft Speed (OSS) Sensor
Cold Mode/Hot Mode Operation
Turbine Shaft Speed (TSS) Sensor and
Intermediate Shaft Speed (ISS) Sensor
Output Shaft Speed (OSS) Sensor
The turbine shaft speed (TSS) and intermediate shaft
speed (ISS) sensors are hall effect sensors requiring a
12-volt power supply and a ground. In this unit both
sensors are incorporated into one housing. The other
two terminals at the sensor are for TSS and ISS
signals to the PCM. The sensor detects teeth on the
coast clutch input hub for TSS signal, and the adjacent
overdrive ring gear teeth for the ISS signal. Both
sensors read 30 teeth per revolution. The TSS/ISS
sensors are mounted externally on the transmission
case (See Figure 6). The TSS/ISS sensors input to the
PCM is digital and used to determine line pressure,
shift timing and TCC operation. Refer to Figure 9 for
TSS/ISS sensor illustrations and connector
information.
The transmission output shaft speed (OSS) sensor is
located on the extension housing (See Figure 6). The
OSS is a hall effect type sensor. The OSS reads a set of
gear teeth on the park gear, that are different than the
teeth used for the park function. The OSS signal to the
PCM is used for vehicle speed signal, shift scheduling
and TCC operation. The OSS has bi-directional
capability and uses a digital output. The OSS tone
wheel has 3 different width spaces between its teeth.
The PCM uses the difference in pulse width to
identify shaft direction rotation. Refer to Figure 10 for
OSS sensor illustrations and connector information.
When the transmission is in cold mode operation,
below -15°C (5°F), determined by the TFT sensor,
the transmission shifts 1st gear, 2nd gear, 3rd gear, 4th
gear (ratio 1.09), 6th gear. When in hot mode the
transmission will shift 1st gear, 2nd gear, 3rd gear, 5th
gear (ratio 1.00), 6th gear. Either way it is still a five
speed unit with six forward gear ratios available,
depending on cold mode or hot mode of operation.
ELECTRICAL COMPONENT
DESCRIPTION AND OPERATION (Cont'd)
Figure 10
Figure 9
AUTOMATIC TRANSMISSION SERVICE GROUP
Technical Service Information
12
Copyright © 2004 ATSG

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