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Home >> Buick >> 1986 >> Riviera V6-231 3.8L >> Repair and Diagnosis >> Powertrain Management >> Computers and Control Systems >> Testing and Inspection >> Symptom Related Diagnostic Procedures >> - Diagnosis By Symptom >> History Codes E047 and B552

History Codes E047 and B552

This combination of History Codes could be caused by:

^ Momentary open in CKT 812A, (CPS 12V).
^ Momentary opens in BCM's grounds CKT's 801A and 801E.

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