The ECM sends electrical signals through the outputs. The outputs can create an action or the outputs can provide information to the ECM. The ECM can generate output signals to the system components by using:
- PWM driver outputs
- ON/OFF driver outputs
- Sinking driver outputs
- Sensor power supply outputs
- Data link output
The ECM monitors the circuits of the output components. If the ECM determines that an abnormal condition exists in one of the circuits, the ECM will log a diagnostic code for the involved component.
Outputs of the VIMS 3G Main ECM are:
- VIMSTM service lamp
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| Illustration 1 | g01478142 |
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VIMSTM service lamp | |
The service lamp is connected to the output of the VIMS ECM (connector J1 contact 58). The service lamp has a “blue lens”. The service lamp is located outside the cab in an area that is easily seen by someone that is a distance away from the machine. The service lamp is turned on to warn the service personnel that the VIMS electronic control module has detected an active event (“data or machine”). A flashing service lamp indicates that the event could be damaging to the machine. If the event becomes inactive, the service lamp is turned off. However, the event is stored in the memory of the VIMS ECM.
Table 1 shows the behavior of the service lamp based on the following:
- Lamp configuration (External Service Lamp Display Mode Setting)
- The event that triggers that behavior
| VIMSTM Service Lamp Behavior Trigger | ||||
|---|---|---|---|---|
| External Service Lamp Display Mode Setting | Active Damage Event Level 3 | Active Event Level 2 | Second Snapshot Triggered | First Snapshot Triggered |
| Snapshot Occurred | Flashing | ON | Flashing every 5 minutes | Flashing every 10 minutes |
| Snapshots Full | Flashing | ON | Flashing every 5 minutes | OFF |
| No Snapshot Notice | Flashing | ON | OFF | OFF |
| Damage Events Only | Flashing | OFF | OFF | OFF |
| Disabled | OFF | OFF | OFF | OFF |