Volkswagen fault codes

3,421 codes · 292 vehicle records · 248 ECU records · 0 live-data parameters

Shared-name brands using this data:

Codes 3,421

Code	Description	Brands	System
P1401	Differential Pressure Feedback Electronic (DPFE) Circuit High Input	39	Powertrain
P1402	Exhaust gas recirculation (EGR) control back pressure valve	33	Powertrain
P1403	EGR flow deviation	34	Powertrain
P1410	Tank fill level implausible	24	Powertrain
P1411	Secondary air injection system, bank 2 flow too flow	23	Powertrain
P1419	Switch-over valve 2 for EGR cooler (N381): short to plus; Cannot be tested at this time	22	Powertrain
P141F	Exhaust gas temperature sensors: implausible; Short to plus	16	Powertrain
P1420	Secondary air injection valve circuit electrical malfunction	26	Powertrain
P1421	DME: Flow rate, sec.-air system, too low, bank 2	23	Powertrain
P1422	Cold start control	21	Powertrain
P1423	DME: Flow rate, sec.-air system, too low, bank 1	21	Powertrain
P1424	Secondary Air Injection System	23	Powertrain
P1425	Tank vent valve short to ground	24	Powertrain
P1426	Tank vent valve open	19	Powertrain
P1427	EGR temperature sensor 1 - intake air temperature 1 not plausible	25	Powertrain
P1428	EGR temperature sensor 1 - intake air temperature 2 not plausible	25	Powertrain
P1429	Circuit for Brake Vacuum Pump: Open Circuit	23	Powertrain
P1432	DME: Secondary-air valve open, mechanically stuck	23	Powertrain
P1433	Secondary air injection system pump relay circuit open	24	Powertrain
P1434	Secondary air injection system pump relay circuit short to battery (+)	21	Powertrain
P1435	Secondary air injection system pump relay circuit short to ground	22	Powertrain
P1436	Leak diagnosis pump - line break	24	Powertrain
P1437	A/C evaporator air temperature circuit high	19	Powertrain
P1438	A/C evaporator air temperature circuit range/performance	20	Powertrain
P1440	EVAP small leak	29	Powertrain
P1443	Leak diagnosis pump - signal high	32	Powertrain
P144E	Closed loop diesel particulate filter (DPF) regeneration control at limit - stage 2 low temperature	10	Powertrain
P144F	Closed loop diesel particulate filter (DPF) regeneration control at limit - stage 2 high temperature	10	Powertrain
P1455	Exhaust gas temperature sensor 1 range/performance	23	Powertrain
P1458	Exhaust gas temperature sensor 2 short to ground	23	Powertrain
P145E	Mass air flow during regeneration too low; Short to plus	16	Powertrain
P145F	Mass air flow during regeneration too high; Short to ground	16	Powertrain
P1461	A/C pressure sensor circuit high input	24	Powertrain
P146A	Malfunction Diesel Particle Filter Bank 1 Temperature increase not sufficient was detected	14	Powertrain
P146B	Malfunction Diesel Particle Filter Bank 2 Temperature increase not sufficient was detected	13	Powertrain
P146D	Feedback from reductant tank heater 1: short to plus; No signal/communication	13	Powertrain
P146F	EVAP purge system pressure sensor performance	10	Powertrain
P1473	Fan circuit open (VLCM)	23	Powertrain
P1475	DME: Tank-leak diagnosis pump, reed switch not closed	23	Powertrain
P1476	Leak diagnosis pump - blocked line	19	Powertrain
P1479	Brake boost vacuum system: mechanical failure; Defective	19	Powertrain
P147A	Control circuit for brake boost vacuum pump: electrical malfunction	10	Powertrain
P148A	Cooling fan signal circuit performance	11	Powertrain
P148B	Cooling fan signal circuit low voltage	11	Powertrain
P148C	Output module 2 for heating of reductant: malfunction; Lower limit exceeded	10	Powertrain
P148D	Implausible frequency	12	Powertrain
P148F	EVAP purge pump voltage sensor high voltage	12	Powertrain
P1499	Air cleaner leak	23	Powertrain
P149D	Transfer pump for reductant: open circuit; Open circuit	15	Powertrain
P149E	Transfer pump for reductant: short to GND; Defective	15	Powertrain

Some brand data is extracted from diagnostic files and may contain manufacturer-specific wording. General SAE J2012 descriptions are used where available.