Tiss_sensor, Toss_sensor – Precision Turbo and Engine BigStuff3 GEN3 Powertrain Controller Transmission Control Users Manual User Manual
Page 6
Bigstuff3 GEN3 Transmission Control Manual
Harness Label
Wire Color
/ Connector
Type
Label
Definition
Connect To
Further Details
Transmission
Valve Body
Fuse
N/A N/A
N/A
20 Pin Transmission Header Connecter
Connect the harness side 20-Pin connector to the stock 20-Pin
header connector on the transmission. The location on the
transmission where this termination should be made can be
seen by clicking on
Twenty_Pin_Connector_Connection
Input and Output Shaft Sensors
The
Trans Input (shaft) Speed Sensor (TISS) and Trans Output (shaft) Speed Sensor (TOSS)
measure the input and output speeds of the transmission so the GEN3 ECU can determine when to lock
the converter, how much slip to allow with an unlocked converter, the vehicle load, the shift pressure,
and the vehicle speed. The TISS and TOSS sensor connectors are identical in shape and color. It is
important to make sure these connections are made to the correct speed sensor on the transmission.
Terminating these connectors to the wrong transmission sensor will effect transmission operation and
could damage the ECU, thus voiding the warranty.
TISS Sensor
Terminate this connector to the stock (TISS) speed sensor on the 4L80E transmission.
Note: The 4L60E transmission does not have a TISS sensor!
The location on the transmission where this termination should be made can be seen by clicking on
.
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