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Home >> Buick >> 1991 >> Reatta 2D Convertible >> Repair and Diagnosis >> Engine Performance >> System >> Engine Controls - Tests W/Codes - Pcm/BCM >> Entering Self-Diagnostics >> BCM Trouble Codes

BCM Trouble Codes

BCM TROUBLE CODES

Code Circuit Affected
B110 Outside Temperature Sensor Circuit
B111 A/C High Side Temperature Sensor
B112 A/C Low Side Temperature Sensor
B113 In-Car Temperature Sensor Circuit
B115 Sunload Sensor Circuit
B119 Twilight Photocell Circuit
B120 Twilight Delay Switch Pot Circuit
B121 Twilight Enable Switch Circuit
B122 Panel Dimming Switch
B123 Courtesy Lamp Switch Circuit
B132 Engine Oil Pressure Sensor Circuit
B333 Loss of SIR Data
B334 Loss of ECM Data to BCM
B335 Loss of ECCP Data to BCM
B336 Loss of IPC Data to BCM
B337 Loss of Programmer Data to BCM
B33* (1) Multiple Intermittent Data Codes
B410 Charging System Problem
B411 Battery Voltage Too Low
B412 Battery Voltage Too High
B440 HVAC-Air Mix Door Circuit
B446, 447 & 448 Low Refrigerant Pressure
B449 HVAC-High Side Temperature Too High
B450 HVAC-Coolant Temperature Too High
B552 BCM Keep Alive Memory Error
B556 Odometer (EE) PROM Error
(1) Last digit (*) may vary with multiple readings.