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| Illustration 1 | g00291779 |
Power Train Electronic Control Module (ECM) (1) Connector J1 (2) Connector J2 | |
The Power Train Electronic Control Module (ECM) is located under the operator seat in the operator station. The Power Train ECM shifts the transmission. The operator input indicates the desired speed for the transmission and the desired direction for the transmission. The Power Train ECM makes decisions that are based on the input information and on the memory information. After the Power Train ECM receives the input information and the memory information, the Power Train ECM sends a corresponding response via the outputs. The inputs and outputs of the Power Train ECM are connected to the machine harness at contact connectors J1 and J2.
Inputs
The Power Train ECM has several input devices. Input devices inform the Power Train ECM of the operating conditions of the machine. The Power Train ECM has inputs from switches and sensors. Switches provide an open, a ground or a +battery to the inputs of the Power Train ECM. Sensors provide a constantly changing signal to the Power Train ECM. The inputs into the Power Train ECM are listed in the tables that follow.
Outputs
The Power Train ECM responds to decisions by sending electrical signals through the outputs. The outputs can create an action or the outputs can provide information to the Power Train ECM. The outputs for the Power Train ECM are listed in the tables that follow.
Input/Output
The AVS Data Link is bidirectional. This allows the Power Train ECM to receive information and this allows the Power Train ECM to send information. The AVS Data Link allows the sharing of information with other electronic controls.
A module identifier (MID) is assigned to all of the electronic controls that use the AVS Data Link. The MID for the Power Train ECM is 081.
ReferenceFor information on the AVS Data Link, refer to Systems Operation, Troubleshooting, Testing and Adjusting, "AVS Data Link" for the machine that is being serviced.
ReferenceFor information on the AVSpare Monitoring System, refer to Systems Operation, Troubleshooting, Testing and Adjusting, "Monitoring System (Power Train Functions)" for the machine that is being serviced.
STIC Steering
| J1 Connector (Power Train ECM) | ||
|---|---|---|
| No. | Function | Type |
| 1 | Battery (+) | Power |
| 2 | Ground | Ground |
| 3 | Cat Data Link (-) | Input/Output |
| 5 | Ground | Ground |
| 6 | Battery (+) | Power |
| 7 | Solenoid Return | Output Return |
| 8 | Start Relay (+) | Solenoid Output |
| 9 | AVS Data Link (+) | Input/Output |
| 11 | Clutch 2 Solenoid (Forward) | Solenoid Output |
| 13 | Neutral Switch | Switch Input |
| 14 | Reverse Switch | Switch Input |
| 17 | Clutch 1 Solenoid (Reverse) | Solenoid Output |
| 18 | Ride Control Solenoid | Solenoid Output |
| 19 | Upshift Switch (N/C) | Switch Input |
| 20 | Options Code 2 | Switch Input |
| 21 | Ride Control Switch 1 (Auto) | Switch Input |
| 22 | Ride Control Switch 2 (Service) | Switch Input |
| 23 | Upshift Switch (N/O) | Switch Input |
| 24 | Options Code 1 | Switch Input |
| 25 | Downshift Switch (N/C) | Switch Input |
| 26 | Downshift Switch (N/O) | Switch Input |
| 27 | Parking Brake Oil Pressure Switch (N/C) | Switch Input |
| 29 | Autoshift Control Switch 2 (Manual) | Switch Input |
| 30 | Forward Switch | Switch Input |
| 31 | Autoshift Control Switch 3 (Fourth Speed) | Switch Input |
| 32 | Autoshift Control Switch 4 (Third Speed) | Switch Input |
| 33 | Autoshift Control Switch 5 (Second Speed) | Switch Input |
| 34 | Remote Input | Switch Input |
| 35 | Option Code 3 | Switch Input |
| 36 | Parking Brake Oil Pressure Switch (N/O) | Switch Input |
| 37 | STIC Control Lock Limit Switch (N/O) | Switch Input |
| 38 | STIC Control Lock Limit Switch (N/C) | Switch Input |
| 39 | Option Code 0 | Switch Input |
| 40 | Key Start Switch (+) | Switch Input |
| J2 Connector (Power Train ECM) | ||
|---|---|---|
| No. | Function | Type |
| 1 | Clutch 4 (Third Gear) | Solenoid Output |
| 2 | Clutch 6 (First Gear) | Solenoid Output |
| 3 | Solenoid Return | Solenoid Return |
| 4 | Transmission Neutralizer Limit Switch | Switch Input |
| 5 | Transmission Oil Pressure Sensor | Frequency Input |
| 7 | Clutch 3 (Fourth Gear) | Solenoid Output |
| 8 | Clutch 5 (Second Gear) | Solenoid Output |
| 13 | Lockup Clutch Solenoid | Solenoid Output |
| 14 | Transmission Output Speed Sensor (+) | Frequency Input |
| 20 | Transmission Output Speed Sensor (-) | Frequency Input |
| 23 | Engine Speed Sensor (+) | Frequency Input |
| 28 | Spare | Switch Input |
| 29 | Engine Speed Sensor (-) | Frequency Input |
| 37 | Backup Alarm (+24V) | Solenoid Output |