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
P1432
Secondary Air Injection System Incorrect Flow Detected
BMW
Auxiliary Emissions Control
Medium severity
P1443
Leakage Diagnostic Pump Control Circuit Signal High
BMW
Auxiliary Emissions Control
Medium severity
P1446
Diagnostic Module Tank Leakage Pump Control Circuit Signal High
BMW
Auxiliary Emissions Control
Medium severity
P1450
Diagnostic Module Tank Leakage Switching Solenoid Open Circuit
BMW
Auxiliary Emissions Control
Medium severity
P1452
Diagnostic Module Tank Leakage Switching Solenoid Control Circuit Signal High
BMW
Auxiliary Emissions Control
Medium severity
P1457
Heated Catalyst Heater Power Switch Temperature Sensor Electrical Bank 1
BMW
Auxiliary Emissions Control
Medium severity
P1460
Heated Catalyst Heater Power Switch Temperature Sensor Electrical Bank 2
BMW
Auxiliary Emissions Control
Medium severity
P1462
Heated Catalyst Internal Control Module Checksum/ROM Error
BMW
Auxiliary Emissions Control
Medium severity
P1465
Heated Catalyst Battery Temperature Sensor 1 or 2 Plausibility
BMW
Vehicle Speed and Idle Control System
High severity
P1472
Diagnostic Module Tank Leakage Switching Solenoid Control Circuit Electrical
BMW
Auxiliary Emissions Control
High severity
P1477
Leakage Diagnostic Pump Reed Switch Did Not Open
BMW
Auxiliary Emissions Control
High severity
P1483
Secondary Air Injection Pump Relay 2 Short To Ground
BMW
Auxiliary Emissions Control
Medium severity
P1493
Low Pressure Pump For Brake Power Too Low
BMW
Vehicle Speed and Idle Control System
Low severity
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