Scan Tool Output Controls
WARNING: This page is about a different car, the 2007 Chevrolet Malibu. However, it is still accessible from the selected car via links, so may be relevant.
Powertrain Control Module (PCM) or Engine Control Module (ECM) Scan Tool Output Controls
| Scan Tool Output Control | Additional Menu Selection(s) | Description |
|---|---|---|
| Fan Relay 1 | Output Control/Cooling Fan | The scan tool displays a Commanded State of Off or On. This allows you to communicate with the ECM and activate or deactivate the cooling fan 1 relay, manually turning the low speed fans On and Off. |
| Fan Relays 2 and 3 | Output Control/Cooling Fan | The scan tool displays a Commanded State of Off or On. This allows you to communicate with the ECM to activate or deactivate the cooling fan 2 and 3 relays, manually turning the high speed fans On. The ECM will activate the cooling fan 2 relay and the cooling fan 3 relay. This turns the high speed fans On and Off. |
| Fan Relays 1, 2 and 3 | Output Control/Cooling Fan | The scan tool displays a commanded state of OFF or ON. This allows you to communicate with the ECM to activate or deactivate all of the cooling fan relays. |