System Inputs & Outputs

INPUT SIGNALS
The following inputs are used by the Transmission Control Module (TCM) to determine proper vehicle shift points.
- Circuit K22 is used to provide the TCM with the throttle position
- Circuit K4 is used to provide the throttle position sensor ground to the Powertrain Control Module (PCM)
- Circuit K24 is used to provide the TCM with the engine speed input

TORQUE REDUCTION DATA LINK
Operation
The torque reduction data link line, circuit T10, is connected between the Transmission Control Module (TCM) and the Powertrain Control Module (PCM). It is used as a communication link for the TCM to instruct the PCM to back down the engine torque output before the vehicle shifts.

Circuit Operation
The torque reduction data link line, circuit T10, is connected between the Transmission Control Module (TCM) and the Powertrain Control Module (PCM). It is used as a communication link for the TCM to instruct the PCM to back down the engine torque output before the vehicle shifts.

Index:

VEHICLE SPEED OUTPUT
Circuit Operation
The Transmission Control Module (TCM) is used to calculate the vehicle speed and provide that information to the Powertrain Control Module (PCM). The TCM sends this information on circuit G7.