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Home >> Buick >> 1991 >> Reatta 2D Convertible >> Repair and Diagnosis >> Engine Performance >> System >> Engine Controls - Tests W/Codes - Pcm/BCM >> Override Display Codes >> BCM Override Parameters: >> BS01

BCM Override Parameters:: BS01

Program Number will automatically change as heating and A/C operating conditions change. Program number can be manually overridden using TEMP UP and TEMP DOWN buttons. TEMP UP button will increase number at controlled rate until MAX HEAT mode value of "99" is reached. TEMP DOWN button will decrease number at controlled rate until MAX A/C mode value of "0" is reached. Manual override will continue until override code is canceled. This manual override control allows technician to alter and observe reactions of system change on other BCM data parameters.