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| Illustration 1 | g00386454 |
Electronic Control Module (ECM) (1) Connector J1 (2) Connector J2 | |
The power train ECM makes decisions based on the information from ECM input (s) and information from memory. After the power train ECM receives the information from input (s) and information from memory, the power train ECM will send a corresponding response through the outputs. The ECM input and outputs of the power train ECM connect to the machine harness by two 40-pin connectors (J1 and J2).
Inputs
The machine has several input devices. The power train ECM receives information from components about machine operations. The machine has switch type inputs and sensor type inputs. Switches provide signals to the switch inputs of the ECM. The possible outputs of a switch are listed: an open signal, a grounded signal and + battery signal. Sensors provide a signal to the ECM that constantly changes. The ECM input (s) of the power train ECM are listed in the two tables for the 40-pin connector.
Outputs
The power train ECM sends 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 two tables for the 40-pin connector.
Input/Output
Each ECM uses the CAT Data Link to communicate with each other. The data link is bidirectional. The data link allows the ECM to receive information. The data link allows the ECM to send information. The data link allows the sharing of information with other electronic control modules.
A module identifier (MID) is assigned to each ECM. The MID for the power train ECM is the number 027.
| Contact Description | ||
|---|---|---|
| No. | Function | Type |
| J1-1 | Battery + | Power |
| J1-2 | Battery - | Power |
| J1-3 | CAT Data Link | CAT Data Link |
| J1-4 | Park Brake Sol | Prop Driver #2 |
| J1-5 | Battery - | Power |
| J1-6 | Battery + | Power |
| J1-7 | Solenoid Return | Solenoid Return |
| J1-8 | Start Relay | ON/OFF Driver #13 |
| J1-9 | CAT Data Link | CAT Data Link |
| J1-10 | Secondary Steering Relay | Prop Driver #1 |
| J1-11 | Lockup Clutch Solenoid | Prop Driver #4 |
| J1-12 | Up Solenoid | Prop Driver #11 |
| J1-13 | Park Brake Operator Switch | Switch to Ground 8 |
| J1-14 | P2 Pressure Switch | Switch to Ground 16 |
| J1-15 | Switch and Sensor Ground Return | Switch and Sensor Ground |
| J1-16 | Switch and Sensor Ground Return | Switch and Sensor Ground |
| J1-17 | ASBS Solenoid | Prop Driver #3 |
| J1-18 | Down Solenoid | Prop Driver #12 |
| J1-19 | Hold Toggle Switch | Switch to Ground 7 |
| J1-20 | Top Drive Gear Switch | Switch to Ground 3 |
| J1-21 | Location 1 | Switch to Ground 26 |
| J1-22 | Location 0 | Switch to Ground 25 |
| J1-23 | Cross Axle Lock Selector Switch | Switch to Ground 6 |
| J1-24 | Service Brake Pressure Switch | Switch to Ground 2 |
| J1-25 | Retarder Brake Pressure Switch | Switch to Ground 12 |
| J1-26 | Park Brake Pressure Switch | Switch to Ground 13 |
| J1-27 | Secondary Steering Pressure Switch | Switch to Ground 28 |
| J1-28 | ECM Location Enable | Switch to Battery 3 |
| J1-29 | Transmission Gear 1 | Switch to Ground 4 |
| J1-30 | Transmission Gear 2 | Switch to Ground 1 |
| J1-31 | Transmission Gear 3 | Switch to Ground 10 |
| J1-32 | Transmission Gear 4 | Switch to Ground 14 |
| J1-33 | Transmission Gear 5 | Switch to Ground 29 |
| J1-34 | Differential Lock Switch | Switch to Battery 2 |
| J1-35 | Transmission Gear Ground Verify | Switch to Ground 5 |
| J1-36 | Front Brake Pressure Switch (N/C) | Switch to Ground 15 |
| J1-37 | Unused | Switch to Ground 11 |
| J1-38 | Location 2 | Switch to Ground 27 |
| J1-39 | Front Brake Pressure Switch (N/O) | Switch to Ground 9 |
| J1-40 | Key Switch Input | Switch to Battery (1) |
| ( 1 ) | The J1-8 driver receives power from the J1-40 input. |
| Contact Description | ||
|---|---|---|
| No. | Function | Type |
| J2-1 | Interaxle Lock Solenoid | Prop Driver #6 |
| J2-2 | Front Cross Axle Lock Sol | Prop Driver #8 |
| J2-3 | Solenoid Return | Solenoid Return |
| J2-4 | Unused | PWM 4/Switch to GND 33 |
| J2-5 | Shift Lever Sensor | PWM 2/Switch to GND 31 |
| J2-6 | Unused | PWM 6/Switch to GND 35 |
| J2-7 | Hold Lamp | Prop Driver #5 |
| J2-8 | Center/Rear Cross Axle Lock Solenoid | Prop Driver #7 |
| J2-9 | Unused | No Connection |
| J2-10 | Unused | PWM 5/Switch to GND 34 |
| J2-11 | Hoist Lever | PWM 1/Switch to GND 30 |
| J2-12 | +8V Sensor Power Supply | +8V Sensor Power Supply |
| J2-13 | Raise Solenoid | Prop Driver #10 |
| J2-14 | Unused | Timer In #4 |
| J2-15 | +10V Sensor Power Supply | +10V Sensor Power Supply |
| J2-16 | Unused | No Connection |
| J2-17 | Unused | No Connection |
| J2-18 | Unused | PWM 3/Switch to GND 32 |
| J2-19 | Lower Solenoid | Prop Driver #9 |
| J2-20 | Unused | Unused |
| J2-21 | Unused | No Connection |
| J2-22 | Unused | Open Collector Output 3 |
| J2-23 | Steering Pressure Sensor | Timer In #2 |
| J2-24 | Unused | Unused |
| J2-25 | Unused | Unused |
| J2-26 | Unused | No Connection |
| J2-27 | Unused | No Connection |
| J2-28 | Unused | Open Collector Output 1 |
| J2-29 | Unused | No Connection |
| J2-30 | Unused | Timer In #3Q |
| J2-31 | Unused | Timer In #4Q |
| J2-32 | Unused | No Connection |
| J2-33 | Unused | No Connection |
| J2-34 | Unused | Open Collector Output #4 |
| J2-35 | Unused | Timer In #3 |
| J2-36 | Unused | Unused |
| J2-37 | Backup Alarm | ON/OFF Driver #14 |
| J2-38 | Transmission Output Speed | Timer Input #1 |
| J2-39 | Unused | No Connection |
| J2-40 | Unused | Open Collector Output 2 |