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April 1, 2020 Service bulletin

DTC U2120:00 and/or U2500:82 stored in memory and the i-ACTIVSENSE warning light (amber) ON when turning...

Mazda technical service bulletin SA-043-20 for 2019-2020 Mazda MAZDA3.

Bulletin number
SA-043-20
Component
Equipment adaptive/mobility
Summary
Some vehicles may exhibit DTC U2120:00 and/or U2500:82 stored in memory and the i-ACTIVSENSE warning light (amber) ON when turning ON the ignition after any electronic control unit (ECU) is reprogramed or configured using MDARS. NOTE: ECU stands for general units (cameras and modules), all of which can be reprogrammed.

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