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DTC 06, 10, 12, 14, 21: Climate Control Unit (+5V Power Supply Or Sensor Ground System) Or Sensor Ground System Inspection: Notes

WARNING: This page is about a different car, the 2004 Mazda 6. However, it is still accessible from the selected car via links, so may be relevant.

Fig 1: DTC 06, 10, 12, 14, 21 Possible Cause Table (When Two Or More DTC Are Indicated At The Same Time)

Courtesy of MAZDA MOTORS CORP.