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Mitsubishi
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2010
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Lancer ES, Standard
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Repair and Diagnosis
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External Pages
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Different variant/trim
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Section 33 (Heating, Air Conditioning And Ventilation -- Lancer Evolution)
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Auto A/C Diagnosis
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Diagnostic Trouble Code Procedures
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DTC B1021: Fan Dial SW Error
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DTC Set Condition
DTC Set Condition
WARNING:
This page is about a different variant/trim than selected.
DTC B1021 will be set when the A/C-ECU cannot receive the signal of blower knob.