Speed Sensor - Output Description - Dodge Intrepid Service Manual

21 - 146 TRANSAXLE
SPEED SENSOR - INPUT (Continued)
Fig. 384 Sensor Relation to Input Clutch
1 - INPUT SPEED SENSOR
2 - TRANSAXLE CASE
3 - INPUT CLUTCH HUB
REMOVAL
(1) Disconnect the input speed sensor connector
(Fig. 385).
Fig. 385 Speed Sensor/Connector Location
1 - MANUAL SHIFT LEVER
2 - OUTPUT SPEED SENSOR
3 - LONG STUB SHAFT
4 - INPUT SPEED SENSOR
(2) Unscrew and remove the input speed sensor.
(3) Inpsect the speed sensor o-ring and replace if
necessary (Fig. 386).
Fig. 386 O-Ring Location
1 - INPUT SPEED SENSOR
2 - O-RING
INSTALLATION
(1) Verify o-ring is installed into position (Fig. 386)
.
(2) Install and tighten input speed sensor to 27
N·m (20 ft. lbs.) torque.
(3) Connect speed sensor connector (Fig. 385) .
(4) Connect battery negative cable.
SPEED SENSOR - OUTPUT
DESCRIPTION
The Output Speed Sensor is a two-wire magnetic
pickup device that generates an AC voltage signal as
rotation occurs. It is threaded into the transaxle case
(Fig. 387), sealed with an o-ring (Fig. 388), and is
considered a primary input to the Powertrain Control
Module (PCM).
OPERATION
The Output Speed Sensor provides information on
how fast the output shaft is rotating. As the rear
planetary carrier park pawl lugs pass by the sensor
coil (Fig. 389), an AC voltage is generated and sent to
the PCM. The PCM interprets this information as
output shaft rpm.
The PCM compares the input and output speed
signals to determine the following:
• Transmission gear ratio
• Speed ratio error detection
• CVI calculation
LH