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Home >> Jaguar >> 2017 >> XF S, RWD >> Repair and Diagnosis >> Quick Lookups >> DTC Index >> Diagnostic Trouble Code Index DTC: Automatic Temperature Control Module (ATCM) - LWB -- XF/X260 >> Diagnostic Trouble Code Index DTC: Automatic Temperature Control Module (ATCM) - LWB >> Description And Operation >> Automatic Temperature Control Module (ATCM) >> DTC B12B9-87: Auxiliary Heater Control Module - Missing message >> Possible Causes
July 1: So it begins. Don't worry, this is not in the correct legal jurisdiction!

Possible Causes

NOTE: Circuit reference - LIN 4 -
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