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
P1413
Secondary Air Injection System Monitor Circuit Low Voltage
Mercedes Benz
Auxiliary Emissions Control
Medium severity
P1416
Port Air Circuit Malfunction/AIR System Bank 2
Mercedes Benz
Auxiliary Emissions Control
Medium severity
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