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 MANUALSCHEVROLET2009CORVETTE V8-7.0LREPAIR AND DIAGNOSISHEATING AND AIR CONDITIONINGTESTING AND INSPECTIONPROGRAMMING AND RELEARNINGAFTERBLOW ENABLE PROCEDURE
2009 Chevrolet Corvette V8-7.0L
Afterblow Enable Procedure
2009 Chevrolet Corvette V8-7.0LSECTION Afterblow Enable Procedure
Afterblow Enabling
The afterblow mode can be enabled using the scan tool. The afterblow mode allows the blower motor to operate after the engine has been turned off. This operation of the blower motor dries the evaporator core, which reduces the amount of microbial growth which can create undesirable odors.
Use the following procedure in order to enable the afterblow mode:
1. Connect the scan tool.
2. Turn ON the ignition, with the engine OFF.
3. Select HVAC Module.
4. Select HVAC Systems Automatic.
5. Select Special Functions.
6. Select HVAC.
7. Select Afterblow Option.
8. Select ENTER to enable the afterblow.
9. When done, use the soft key to save changes.
When afterblow has been enabled by the scan tool the blower motor will operate between medium and high speed for 4 minutes after the engine has been turned off.
The following conditions must be met for the HVAC module to operate the afterblow:
* The outside air temperature must be at least 21°C (70°F).
* The A/C compressor must operate for more than 2 minutes.
* The engine must be turned off for at least 45 minutes.
* The system voltage must be at least 12 volts.
RENDER: 1.0x
NO RELATED
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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.