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Home >> Buick >> 1986 >> Riviera Base >> Repair and Diagnosis >> Engine Performance >> System >> BCM System, Part II >> ECM Trouble Code Charts - Trouble Shooting >> Code B131, Engine Oil Pressure Switch Circuit Problem >> Note On INTERMITTENTS:

Note On INTERMITTENTS:

If an intermittent Code B131 is being set, manipulate circuit 313. When BCM input BI26 change-of-state indicator displays an "X", the failure has been induced.

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