Safety Warning
DIY auto repair can cause serious injury, fire, or vehicle damage. These guides are for informational purposes only. Always follow OEM torque specs, wear PPE, and consult a certified mechanic if you are unsure. You are solely responsible for your safety.
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HOMESERVICE MANUALSOLDSMOBILE2004BRAVADA RWDREPAIR AND DIAGNOSISEXTERNAL PAGESDIFFERENT CARSECTION 1655 (HVAC SYSTEMS - AUTOMATIC)DIAGNOSTIC INFORMATION AND PROCEDURESSCAN TOOL OUTPUT CONTROLS
2004 Oldsmobile Bravada RWD
Scan Tool Output Controls
2004 Oldsmobile Bravada RWDSECTION Scan Tool Output Controls
WARNING: This page does not describe the selected car, but rather 7 other vehicles, including the 2002 GMC Yukon XL, 2002 GMC Yukon, 2002 Chevrolet Tahoe, 2002 Chevrolet Suburban, and 2002 Chevrolet Avalanche. However, it is still accessible from the selected car via links, so may be relevant.
ECC Scan Tool Output Controls
| Scan Tool Output Control | Additional Menu Selection(s) | Description |
|---|---|---|
| Rear defogger | Miscellaneous | The scan tool displays Commanded State: None, Off or On. The selection activates or deactivates the rear defrost. |
| A/C Request | Miscellaneous | The scan tool displays Commanded State: None, Off or On. The selection activates or deactivates the A/C request signal. |
| Recirculation Mode | Miscellaneous | The scan tool displays Commanded State: None, Off or On. The selection activates or deactivates the recirc light and drives the recirculation door to the recirculation position. |
| Outside Air Mode | Miscellaneous | The scan tool displays Commanded State: None, Off or On. The selection activates or deactivates the recirc light and drives the recirculation door to the outside air position. |
| Air Inlet Door | Motor/Actuator tests | The scan tool displays Outside or Recirc selections. The selection drives the actuator to its min or max stops. |
| Blower Motor | Motor/Actuator tests | The scan tool displays Commanded State: None, Off or On. This function allows you to command the blower motor to its maximum (100%) or minimum (0%) speeds. |
| Blower Motor Auxiliary | Motor/Actuator tests | The scan tool displays Commanded State: None, Off or On. This function allows you to command the auxiliary blower motor to its maximum (100%) or minimum (0%) speeds. |
| Mode Door Position | Motor/Actuator tests | The scan tool displays Defrost or Panel selections. The selection drives the actuator to its min or max stops. |
| Auxiliary Mode Door | Motor/Actuator tests | The scan tool displays Upper Outlets or Floor selections. The selection drives the actuator to its min or max stops. |
| Instant OAT Update | Miscellaneous | The scan tool displays Commanded State: None, Off or On. Updates the ECC outside air temperature input to the current raw value. |
| Mix Motor | Motor/Actuator tests | The scan tool displays Commanded State: None, Off or On. The selection drives the temperature actuator to its min or max stops. |
| Auxiliary Mix door | Motor/Actuator tests | The scan tool displays Commanded State: None, Off or On. The selection drives the auxiliary temperature actuator to its min or max stops. |
| Set up new HVAC | Set up new HVAC | This function allows the control module to learn what auxiliary system the vehicle is equipped with. |
PCM Scan Tool Output Controls
| Scan Tool Output Control | Additional Menu Selection(s) | Description |
|---|---|---|
| A/C Relay | - | The scan tool displays On or Off selections. This command allows you to turn the A/C relay ON or OFF. |
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When to See a Mechanic
Stop DIY work and contact a certified mechanic immediately if any of the following apply:
- • You smell fuel, burning insulation, or see smoke.
- • Brakes feel soft, pull hard to one side, or make grinding noises.
- • The engine overheats, stalls repeatedly, or misfires under load.
- • You are missing required tools, torque specs, or safe lifting equipment.
- • You are not confident in the next step or safety outcome.