Circuit/System Description
| Circuit | Description |
|---|---|
| Signal | The control module input circuit has an internal resistance connected to 5 V. |
| Ground | Chassis Ground |
| Component | Description |
|---|---|
| K9 Body Control Module | The control module contains a microprocessor used to process input data to control outputs. |
| K71 Transmission Control Module | The control module receives information from a variety of sensors, switches and serial data information from other control modules. This information is used to control a combination of solenoid valves to obtain the correct line pressure, gear ratio and torque converter clutch operation. |
| S2 Automatic Transmission Manual Shift Shaft Position Switch | The switch S2L has an internal resistor ladder network. A specific resistance is generated dependent on the position of the switch. |
The switches are connected in series between the ground and the signal circuit and are inputs to the control module K9. When a switch is pressed, the voltage drop across the switch changes. The driver shift request is sent over serial data to the control module K71. The control module K71 ignores a shift request if the transmission shift lever is not in the manual mode position, or the operating conditions are out of range.