A3 L4-2.0L Turbo (BPY) (2006)
Control Module HVAC: Testing and Inspection
Heater Control Module, Checking
Heater Control Module, Checking
‹› Beginning with MY 2010, a Start/Stop System is offered as an option on certain engines. The Heater Control Module (J65) has no affect on the
Start/Stop function on vehicles with only a heater (no "A/C").
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Remove the glove compartment. See: Body and Frame/Interior Moulding / Trim/Utility Storage Compartment/Service and Repair/Storage
Compartments and Covers/Glove Compartment
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Switch ignition on.
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Turn rotary switch for air distribution - B - into " air distribution to instrument panel vents" position.
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The fresh/recirculating air button - F - is not operated (fresh air mode, button indicator light does not come on).
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Connect the Voltage Tester (V.A.G 1527 B) - B - to check voltage at connector - A - between terminals "9" and "10" (to Fresh/Recirculating Air
Door Motor (V154)).
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Operate fresh/recirculating air button (button indicator lamp lights up).
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"Ground (GND)" is applied at terminal "9" continuously or only for a short time (depending on control module version) and " Plus" is applied at
terminal "10" continuously or only for a short time.
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Fresh/Recirculating Air Door Motor (V154) and thus the fresh/recirculating air door moves into "recirculating air mode" position (recirculating air
intake opening - C - is opened).
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Operate fresh/recirculating air button - F - (recirculating air, button indicator lamp goes out).