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Home >> BMW >> 2013 >> Alpina B7 >> Repair and Diagnosis >> Engine Performance >> System >> Self Diagnosis - Diagnostic Trouble Codes - DTC P14C0 - DTC U1179 (N63 & S63) >> Diagnostic Trouble Codes (DTCS) MSD85 - Bn2020 >> DTC U1132, BMW Hex Code 0x210901, BMW Code 2164993: Lost Communication With Generator via BSD (Bit Serial Data Interface) >> Repair procedures (plant/service)

Repair procedures (plant/service)

-Check plug connection (detent) on alternator.

-Check connection wire (BSD bus) between alternator and DME.

-Alternator replacement required only if the DME only detects a BSD fault with the alternator (not in response to global BSD fault)