OBD fault code library
Look up any P or U code to see what it means, what causes it, the parts involved and how it gets fixed.
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Fault codes
P1283
Switching Solenoid for Air Assisted Injection Valves Bank 1 Control Circuit Electrical
BMW
Auxiliary Emissions Control
Medium severity
P1284
Switching Solenoid for Air Assisted Injection Valves Bank 1 Control Circuit Signal Low
BMW
Auxiliary Emissions Control
Medium severity
P1288
Switching Solenoid for Air Assisted Injection Valves Bank 2 Control Circuit Signal Low
BMW
Auxiliary Emissions Control
Medium severity
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