Home >> BMW >> 2008 >> 750Li >> Repair and Diagnosis >> Engine Performance >> Testing & Diagnosis >> Self Diagnosis - Diagnostic Trouble Codes - DTC P1327-U1202 (N62) >> BMW Me9.2.3 (DTC P1327-U1202) >> DTC P1386, BMW Hex Code 0x2E72, BMW Code 11890: Control Module Self-Test, Knock Control Circuit Baseline Test (Bank 1) (MIN) >> Possible Fault Causes