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
P1379
Fuel Injection Control Module Circuit High Voltage
Mercedes Benz
Injector Circuit
High severity
P1386
Engine Control Module (ECM) Knock Control Defective
Mercedes Benz
Ignition System
High severity
P1400
Differential Pressure Feedback Electronic Sensor Circuit Low Voltage
Mercedes Benz
Auxiliary Emissions Control
Medium severity
P1403
Differential Pressure Feedback Electronic Sensor Hoses Reversed
Mercedes Benz
Auxiliary Emissions Control
Medium severity
P1410
EGR Barometric Pressure Sensor VREF Voltage
Mercedes Benz
Auxiliary Emissions Control
Medium severity
P1414
Secondary Air Injection System Monitor Circuit High Voltage
Mercedes Benz
Auxiliary Emissions Control
Medium severity
P1415
Air Pump Circuit Malfunction/AIR System Bank 1
Mercedes Benz
Auxiliary Emissions Control
Medium severity
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