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Home >> Buick >> 1999 >> Regal LS >> Repair and Diagnosis >> Accessories & Equipment >> Gauges & Instrument Panels >> Instrument Panel - Analog >> Diagnostic Tests >> DTC U1064: Loss Of BCM Communication >> Diagnostic Aids

Diagnostic Aids

The following conditions may cause an intermittent DTC: intermittent open or short to ground in circuit No. 1037 (Light Green wire) or poor connections at instrument cluster or BCM.