B Code Descriptions

BCM TROUBLE CODES (LISTED BELOW)

CODE B110 - Outside temperature sensor circuit
CODE B111 - A/C high side temperature sensor circuit
CODE B112 - A/C low side temperature sensor circuit
CODE B113 - In-Car temperature sensor circuit
CODE B115 - Sunload sensor circuit
CODE B119 - Twilight photocell circuit
CODE B120 - Twilight delay pot circuit
CODE B120 & B122 - Twilight delay and panel dimming
CODE B121 - Twilight enable switch circuit
CODE B122 - Panel dimming switch pot circuit
CODE B123 - Courtesy lamps panel switch circuit
CODE B132 - Engine oil pressure sensor warning circuit fault
CODE B333 - Loss of SIR data
CODE B334 - Loss of PCM serial data
CODE B335 - Loss of ECCP data
CODE B336 - Loss of IPC data
CODE B337 - Loss of HVAC programmer serial data
CODE B33* - Multiple intermittent data codes
CODE B410 - Charging system circuit
CODE B411 or 412 - Battary voltage too low or too high
CODE B440 - HVAC air mix door circuit problem
CODE B446, B447 & B448 - Low refrigerant pressure
CODE B449 - HVAC high side temperature too high
CODE B450 - HVAC coolant temperature too high
CODE B552 - Keep-alive memory error
CODE B556 - Odometer EEPROM error