Fault code lookup

Results for “B121”

Fault codes 112

Results match keywords in the stored descriptions. Codes you typed are shown first.

CodeDescriptionBrandsSystem
B121411B_CAN limp home1Body
B121449The actuator motor for the left rear air distribution flap has a malfunction. There is an internal electrical fault.1Body
B121451The actuator motor for the left rear air distribution flap has a malfunction. The component is not programmed.1Body
B121487Der Stellmotor für Luftverteilungsklappe hinten links hat Funktionsstörung. Botschaft fehlt.1Body
B121500If abnormal Rear Center Left Sensor operation signal is detected, BCM sets DTC2Body
B121549The actuator motor for the right rear air distribution flap has a malfunction. There is an internal electrical fault.1Body
B121551The actuator motor for the right rear air distribution flap has a malfunction. The component is not programmed.1Body
B121587Der Stellmotor für Luftverteilungsklappe hinten rechts hat Funktionsstörung. Botschaft fehlt.1Body
B121588B_CAN bus off1Body
B121600If abnormal Rear Center Right Sensor operation signal is detected, BCM sets DTC1Body
Show 15 more matches on this page
CodeDescriptionBrandsSystem
B121611Right Side Pressure Sensor Short To Ground1Body
B121612Right Side Pressure Sensor Short To Battery1Body
B121613Right Side Pressure Sensor - Open Circuit1Body
B12161DBCAN single line fault1Body
B12162BRight Side Pressure Sensor Short To Another Remote Sensor1Body
B121655Right Side Pressure Sensor Configuration Error1Body
B121664Right Side Pressure Sensor Configuration Error1Body
B121681Right Side Pressure Sensor Communication Error1Body
B121687Right Side Pressure Sensor Communication Error1Body
B121696Right Side Pressure Sensor Internal Error1Body
B121700If abnormal Rear Right Sensor operation signal is detected, BCM sets DTC1Body
B121811Crash Output Line Short To Ground1Body
B121812Crash Output Line Short To Battery1Body
B121813Crash Output Line Open Circuit1Body
B121864Crash Output Line Configuration Error1Body
CodeDescriptionBrandsSystem
B121611Right Side Pressure Sensor Short To Ground1Body
B121612Right Side Pressure Sensor Short To Battery1Body
B121613Right Side Pressure Sensor - Open Circuit1Body
B12161DBCAN single line fault1Body
B12162BRight Side Pressure Sensor Short To Another Remote Sensor1Body
B121655Right Side Pressure Sensor Configuration Error1Body
B121664Right Side Pressure Sensor Configuration Error1Body
B121681Right Side Pressure Sensor Communication Error1Body
B121687Right Side Pressure Sensor Communication Error1Body
B121696Right Side Pressure Sensor Internal Error1Body
B121700If abnormal Rear Right Sensor operation signal is detected, BCM sets DTC1Body
B121811Crash Output Line Short To Ground1Body
B121812Crash Output Line Short To Battery1Body
B121813Crash Output Line Open Circuit1Body
B121864Crash Output Line Configuration Error1Body
Advanced: scanner vehicle and live-data matches

Vehicles 2

Vehicle data covers only some brands. These matches come from scanner data, not from a full vehicle index, so treat them as approximate.

BrandModel / variantDetails
SmartAfter rectifying a Hall sensor fault (B1200 to , B1210) no normalizing was performedcode B1204
SprinterAfter rectifying a Hall sensor fault (B1200 to , B1210) no normalizing was performedcode B1204

Live data 0

No matching live-data parameters.

These tables come from diagnostic data. They are useful for advanced users and can be ignored for a normal code lookup.

OpenDTC - independent fault code reference