Diagnostic comparisons

Diagnostic knowledge search

23,879 code identifiers with scoped meanings, and 54,261 enhanced signal definitions. No VIN or personal information is needed.

Diagnostic explainers

Pending, stored and permanent codes · Enhanced PIDs and Mode 22

Code or signal meaning

Reference

Brand context

78,140 matches

Page 660 · 19771–19800 shown

P1445

Purge Flow Sensor Circuit High Input

18 reference families · BMW, Chrysler, Ford, GM, Acura / Honda, Lincoln, Mazda, Mercedes-Benz, Mercury, Dodge / Mitsubishi, Infiniti / Nissan, Generic OBD2, Oldsmobile, Belgee / Geely / Proton, Saab, Chevrolet / Citroen / General Motors / Opel / Peugeot, Audi / Jetta / MAN / Seat / Skoda / Volkswagen, Polestar / Volvo

P1446

Evaporative Vac Solenoid Circuit Malfunction

13 reference families · BMW, Dodge / Fiat, Ford, Mazda, Mercedes-Benz, Dodge / Mitsubishi, Infiniti / Nissan, Generic OBD2, Belgee / Geely / Proton, Chevrolet / Citroen / General Motors / Opel / Peugeot, Subaru, Audi / Jetta / MAN / Seat / Skoda / Volkswagen, Polestar / Volvo

P1447

ELC System Closure Valve Flow Fault

13 reference families · BMW, Chrysler, Ford, Genesis / Hyundai / Kia, Jaguar / Land Rover, Dodge / Mitsubishi, Infiniti / Nissan, Generic OBD2, Belgee / Geely / Proton, Chevrolet / Citroen / General Motors / Opel / Peugeot, Subaru, Audi / Jetta / MAN / Seat / Skoda / Volkswagen, Polestar / Volvo

P1448

ELC System 2 Fault

15 reference families · BMW, Chrysler, Dodge / Fiat, Ford, Acura / Honda, Genesis / Hyundai / Kia, Jaguar / Land Rover, Dodge / Mitsubishi, Infiniti / Nissan, Generic OBD2, Belgee / Geely / Proton, Chevrolet / Citroen / General Motors / Opel / Peugeot, Subaru, Audi / Jetta / MAN / Seat / Skoda / Volkswagen, Polestar / Volvo

P1449

Evaporative Check Solenoid Circuit Malfunction

13 reference families · BMW, Ford, Acura / Honda, Lambo, Mazda, Mercedes-Benz, Dodge / Mitsubishi, Infiniti / Nissan, Generic OBD2, Belgee / Geely / Proton, Chevrolet / Citroen / General Motors / Opel / Peugeot, Audi / Jetta / MAN / Seat / Skoda / Volkswagen, Polestar / Volvo

P144A

EVAPORATIVE EMISSION (EVAP) SYSTEM PURGE VAPORLINE RESTRICTED / BLOCKED

1 reference families · Ford

P144B

EVAPORATIVE EMISSION (EVAP) SYSTEM SECONDARY PURGE VAPOR LINE RESTRICTED / BLOCKED

1 reference families · Ford

P144C

EVAPORATIVE EMISSION (EVAP) SYSTEM PURGE FLOW PERFORMANCE DURING BOOST

1 reference families · Ford

P1450

Unable To Bleed Up Fuel Tank Vacuum

19 reference families · BMW, Chrysler, Ford, GM, Jaguar / Land Rover, Lincoln, Mazda, Mercedes-Benz, Mercury, Dodge / Mitsubishi, Infiniti / Nissan, Generic OBD2, Oldsmobile, Belgee / Geely / Proton, Saab, Chevrolet / Citroen / General Motors / Opel / Peugeot, Suzuki, Audi / Jetta / MAN / Seat / Skoda / Volkswagen, Polestar / Volvo

P1451

Evap Emission Control Sys Vent Control Valve Circuit

20 reference families · BMW, Chrysler, Dodge / Fiat, Ford, GM, Jaguar / Land Rover, Lincoln, Mazda, Mercedes-Benz, Mercury, Dodge / Mitsubishi, Infiniti / Nissan, Generic OBD2, Oldsmobile, Belgee / Geely / Proton, Saab, Chevrolet / Citroen / General Motors / Opel / Peugeot, Suzuki, Audi / Jetta / MAN / Seat / Skoda / Volkswagen, Polestar / Volvo

P1452

Unable To Bleed - Up Vacuum in Tank

15 reference families · BMW, Chrysler, Ford, GM, Lincoln, Mercury, Dodge / Mitsubishi, Infiniti / Nissan, Generic OBD2, Oldsmobile, Belgee / Geely / Proton, Saab, Chevrolet / Citroen / General Motors / Opel / Peugeot, Audi / Jetta / MAN / Seat / Skoda / Volkswagen, Polestar / Volvo

P1453

Fuel Tank Pressure Relief Valve Malfunction

15 reference families · BMW, Chrysler, Ford, GM, Genesis / Hyundai / Kia, Jaguar / Land Rover, Mercedes-Benz, Dodge / Mitsubishi, Infiniti / Nissan, Generic OBD2, Belgee / Geely / Proton, Saab, Chevrolet / Citroen / General Motors / Opel / Peugeot, Audi / Jetta / MAN / Seat / Skoda / Volkswagen, Polestar / Volvo

P1454

Evaporative System Vacuum Test Malfunction

14 reference families · BMW, Chrysler, Ford, GM, Acura / Honda, Genesis / Hyundai / Kia, Jaguar / Land Rover, Dodge / Mitsubishi, Infiniti / Nissan, Generic OBD2, Belgee / Geely / Proton, Chevrolet / Citroen / General Motors / Opel / Peugeot, Audi / Jetta / MAN / Seat / Skoda / Volkswagen, Polestar / Volvo

P1455

Evap Emission Control Sys Leak Detected (Gross Leak/No Flow)

19 reference families · Chrysler, Ford, GM, Lambo, Lincoln, Mazda, Mercedes-Benz, Mercury, Dodge / Mitsubishi, Infiniti / Nissan, Generic OBD2, Oldsmobile, Porsche, Belgee / Geely / Proton, Saab, Chevrolet / Citroen / General Motors / Opel / Peugeot, GAC / Lexus / Toyota, Audi / Jetta / MAN / Seat / Skoda / Volkswagen, Polestar / Volvo

P1456

Fuel Tank Temperature Sensor Circuit Malfunction

15 reference families · BMW, Ford, GM, Acura / Honda, Mazda, Mercedes-Benz, Dodge / Mitsubishi, Infiniti / Nissan, Generic OBD2, Porsche, Belgee / Geely / Proton, Saab, Chevrolet / Citroen / General Motors / Opel / Peugeot, Audi / Jetta / MAN / Seat / Skoda / Volkswagen, Polestar / Volvo

P1457

Unable To Pull Vacuum In Tank

18 reference families · BMW, Chrysler, Ford, GM, Acura / Honda, Lincoln, Mazda, Mercedes-Benz, Mercury, Dodge / Mitsubishi, Infiniti / Nissan, Generic OBD2, Oldsmobile, Porsche, Belgee / Geely / Proton, Chevrolet / Citroen / General Motors / Opel / Peugeot, Audi / Jetta / MAN / Seat / Skoda / Volkswagen, Polestar / Volvo

P1458

Water valve

9 reference families · Dodge / Fiat, Ford, GM, Genesis / Hyundai / Kia, Lambo, Porsche, Chevrolet / Citroen / General Motors / Opel / Peugeot, Audi / Jetta / MAN / Seat / Skoda / Volkswagen, Polestar / Volvo

P1459

Evaporative Emission (EVAP) Purge Flow Switch Malfunction

7 reference families · BMW, Ford, GM, Acura / Honda, Generic OBD2, Audi / Jetta / MAN / Seat / Skoda / Volkswagen, Polestar / Volvo

P145B

A/C DEMAND NOT ACTIVE DURING SELeft-TEST

1 reference families · Ford

P145E

PCV HEATER CONTROL "B" CIRCUIT

1 reference families · Ford

P1460

Wide open throttle A/C cutoff relay circuit

P1461

A/C pressure sensor circuit voltage low

14 reference families · BMW, Chrysler, Ford, Jaguar / Land Rover, Lincoln, Mercury, Dodge / Mitsubishi, Infiniti / Nissan, Generic OBD2, Oldsmobile, Belgee / Geely / Proton, Chevrolet / Citroen / General Motors / Opel / Peugeot, Audi / Jetta / MAN / Seat / Skoda / Volkswagen, Polestar / Volvo

P1462

A/C pressure sensor circuit voltage high

P1463

A/C Pressure Sensor Insufficient Pressure Change

13 reference families · BMW, Chrysler, Ford, Jaguar / Land Rover, Lincoln, Mercedes-Benz, Mercury, Dodge / Mitsubishi, Infiniti / Nissan, Generic OBD2, Oldsmobile, Belgee / Geely / Proton, Chevrolet / Citroen / General Motors / Opel / Peugeot

P1464

A/C Demand Out of Self Test Range

14 reference families · BMW, Chrysler, Ford, Jaguar / Land Rover, Lincoln, Mazda, Mercedes-Benz, Mercury, Dodge / Mitsubishi, Infiniti / Nissan, Generic OBD2, Oldsmobile, Belgee / Geely / Proton, Chevrolet / Citroen / General Motors / Opel / Peugeot

P1465

A/C Relay Circuit Malfunction

14 reference families · BMW, Chrysler, Ford, Lincoln, Mercedes-Benz, Mercury, Dodge / Mitsubishi, Infiniti / Nissan, Generic OBD2, Oldsmobile, Belgee / Geely / Proton, Chevrolet / Citroen / General Motors / Opel / Peugeot, Audi / Jetta / MAN / Seat / Skoda / Volkswagen, Polestar / Volvo

P1466

A/C Refrigerant Temperature Sensor/Circuit Malfunction

13 reference families · BMW, Chrysler, Ford, Lincoln, Mercury, Dodge / Mitsubishi, Infiniti / Nissan, Generic OBD2, Oldsmobile, Belgee / Geely / Proton, Chevrolet / Citroen / General Motors / Opel / Peugeot, Audi / Jetta / MAN / Seat / Skoda / Volkswagen, Polestar / Volvo

P1467

A/C Compressor Temperature Sensor Malfunction

9 reference families · BMW, Ford, Dodge / Mitsubishi, Infiniti / Nissan, Generic OBD2, Belgee / Geely / Proton, Chevrolet / Citroen / General Motors / Opel / Peugeot, Audi / Jetta / MAN / Seat / Skoda / Volkswagen, Polestar / Volvo

P1468

SSPOD Open Circuit or Closed Circuit Fault

P1469

Low A/C Cycling Period

12 reference families · Chrysler, Ford, Lincoln, Mercury, Dodge / Mitsubishi, Infiniti / Nissan, Generic OBD2, Oldsmobile, Belgee / Geely / Proton, Chevrolet / Citroen / General Motors / Opel / Peugeot, Audi / Jetta / MAN / Seat / Skoda / Volkswagen, Polestar / Volvo

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OBD Lens reference library · catalog legacy-owner-2026-11-02-v84-evidence. Sources and scope