| Table 1: | Engine Control Module (ECM) L61 Scan Tool Output Controls |
| Table 2: | Powertrain Control Module (PCM) L66 Scan Tool Output Controls |
Scan Tool Output Control | Additional Menu Selection(s) | Description |
|---|---|---|
Fan Control 1 Command | General Info Outputs | The scan tool displays a commanded state of On or Off. This allows you to communicate with the ECM and activate or deactivate the cooling fan relay, manually turning the fans On and Off. |
Fan Control 2 Command | General Info Outputs | The scan tool displays a commanded state of On or Off. This allows you to communicate with the ECM and activate or deactivate the cooling fan relay, manually turning the fans On and Off. |
Scan Tool Output Control | Additional Menu Selection(s) | Description |
|---|---|---|
Fan Relay 1 | General Info Outputs | Turns ON the cooling fan low relay. The normal commanded state of the fan relay is NONE. The PCM allows cooling fan relay control when the ignition is ON and the engine is OFF. |
Fan Relay 2 | General Info Outputs | Turns ON the cooling fan 1, cooling fan 2 and cooling fan 3 relays. The normal commanded state of the fan relays is NONE. The PCM allows cooling fan relay control when the ignition is ON and the engine is OFF. |
