Non-Turbo Models
INPUT SIGNALS SPECIFICATION (NON-TURBO MODELS)
| Signal name | Major function |
|---|---|
| Throttle position sensor (for U4, U6) | Indicates the throttle valve position. This signal is used to determine shift point, line pressure, and lockup engaging vehicle speed, which vary with engine load. |
| Accelerator pedal position sensor (for U5) | Indicates the accelerator pedal position. This signal is used to determine shift point, line pressure, and lockup engaging vehicle speed, which vary with engine load. |
| Front vehicle speed sensor (located on transmission case) | Indicates the vehicle speed. This signal is used for control of gear shifting, lockup engaging, line pressure, and transfer clutch operation. |
| Rear vehicle speed sensor (located on extension case) | Used to control transfer clutch, and also as backup signal in case of failure of front vehicle speed sensor. |
| Engine speed signal | Indicates the engine speed. This signal is used for control of lockup clutch to ensure smooth engagement. |
| Inhibitor switch | Used to determine gears and line pressures in each of ranges P, R, N, D, 3, 2 and 1. |
| ATF temperature sensor | Indicates the ATF temperature. This signal is used for inhibition of lock-up, release of OD and determination of ATF temperature. |
| FWD switch (vehicles without VDC system and sports shift) | Used for changing the mode from AWD to FWD. Also used for adapting the vehicle to FWD tester roller. Changeover from AWD to FWD can be made by inserting a fuse into the fuse holder. |
| ABS signal * | Used when ABS is operating to optimize ABS control. In this control, transfer clutch torque load capacity is adjusted to eliminate the influence of engine braking and reduce the degree of coupling between front and rear wheels. |
| Cruise control signal | Indicates operation of cruise control system. It is used to expand operation in 4th. |
| Torque converter turbine speed sensor | Tells the rotation speed of the input shaft. The proportion of this speed to the vehicle speed determines whether shifting should be made or not. |
| Torque control cut signal* | Sent from engine control module (ECM) to TCM to temporarily inhibit the torque control when starting off with low coolant temperature. |
| Intake manifold pressure signal | Used to determine line pressure of gear shifting. |
| Brake switch | If this signal is issued during downhill driving, TCM makes downshift control, causing the vehicle speed to be reduced. |
| Sports shift mode switch (vehicles with sports shift) | Used to switch between normal shift mode and sports shift mode. |
| Upshift switch (vehicles with sports shift) | The TCM makes upshift control when a signal is input while driving in sports shift mode. |
| Downshift switch (vehicles with sports shift) | The TCM makes downshift control when a signal is input while driving in sports shift mode. |
| TCS signal (vehicles with VDC system)* | Used when TCS is operating to optimize TCS control. In this control, transfer clutch torque is controlled to eliminate the influence of engine braking and reduce the degree of coupling between front and rear wheels. |
| VDC signal (vehicles with VDC system)* | Used when VDC is operating to optimize VDC control. In this control, transfer clutch torque is controlled to eliminate the influence of engine braking and reduce the degree of coupling between front and rear wheels. |
| Steering angle sensor (vehicles with VDC system)* | Used to monitor the vehicle behavior and send signals for transfer control. |
| Yaw-rate and lateral G sensor (vehicles with VDC system)* | Used to monitor the vehicle behavior and send signals for transfer control. |
NOTE:
Signals marked with "*
" are transmitted over CAN communication.