You need to determine what part isn't working.

Start with the blower motor. You can either apply 12 volts to the connector and see if it spins, or check the voltage at the connector with the CCU in defrost mode.

If the motor works and there is no voltage at the connector, then the problem is either the CCU, the blower motor module, the temperature control module, or a fuse. I don't have any of the schematics in front of me to help diagnose any of these.

__________________
Michael LaFleur

'05 E320 CDI - 86,000 miles
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