5 L4-2.3L (2007)
Control Assembly: Component Tests and General Diagnostics
Full-Auto Air Conditioner
CLIMATE CONTROL UNIT INSPECTION [FULL-AUTO AIR CONDITIONER]
1. Connect the audio unit connector.
2. Connect the climate control unit connector.
3. Turn the ignition switch to the ON position.
4. Connect the negative (-) lead of the tester to body ground.
5. By inserting the positive (+) lead of the tester into each climate control unit terminal, measure the voltage according to the terminal voltage table.
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If there is any malfunction, inspect the parts under "Inspection item (s)".
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If the parts under "Inspection item (s)" are found to be normal (except for terminal F), replace the climate control unit.
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For terminal F first try replacing the power MOS FET. If there is still any malfunction, replace the climate control unit.
PCM Terminal Voltage Table (Reference) Part 1