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Home >> Land Rover >> 2015 >> Range Rover Evoque Dynamic, 4D Utility >> Repair and Diagnosis >> Quick Lookups >> DTC Index >> Diagnostic Trouble Code Index DTC: Automatic Temperature Control Module (ATCM) -- Range Rover EVOQUE/L538 >> Diagnostic Trouble Code Index DTC: Automatic Temperature Control Module (ATCM) >> Description And Operation >> DTC B12B9-57: Auxiliary Heater Control Module - Invalid/incomplete software component >> Possible Causes

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

Possible Causes

Fuel fired booster heater internal failure

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