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Home >> Mazda >> 2001 >> 626 ES, 2.0 C >> Repair and Diagnosis >> Brakes >> Anti-Lock/Traction Control >> DTC U2021: Engine Control System >> Diagnostic Procedure

July 1: So it begins. Don't worry, this is not in the correct legal jurisdiction!

Diagnostic Procedure

Fig 1: DTC U2021 - Inspection & Action

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