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Diagnostic comparisons

Compare OBD codes and concepts

P0420 vs P0430

Upstream vs downstream O2 sensor

Bank 1 vs Bank 2

OBD1 vs OBD2: scope

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

23,879 matches

Page 677 · 20281–20310 shown
P1730
Gear Control Malfunction 2,3,5

12 reference families · Chrysler, Ford, GM, Acura / Honda, Genesis / Hyundai / Kia, Jaguar / Land Rover, Dodge / Mitsubishi, Infiniti / Nissan, Generic OBD2, Belgee / Geely / Proton, GAC / Lexus / Toyota, Audi / Jetta / MAN / Seat / Skoda / Volkswagen

P1731
1-2 Shift Malfunction

13 reference families · Chrysler, Ford, GM, Acura / Honda, Genesis / Hyundai / Kia, Jaguar / Land Rover, Lincoln, Mercury, Dodge / Mitsubishi, Infiniti / Nissan, Generic OBD2, Oldsmobile, Belgee / Geely / Proton

P1732
2-3 Shift Malfunction

12 reference families · Chrysler, Ford, GM, Acura / Honda, Genesis / Hyundai / Kia, Lincoln, Mercury, Dodge / Mitsubishi, Infiniti / Nissan, Generic OBD2, Oldsmobile, Belgee / Geely / Proton

P1733
3-4 Shift Malfunction

14 reference families · Chrysler, Ford, GM, Acura / Honda, Genesis / Hyundai / Kia, Lincoln, Mercury, Dodge / Mitsubishi, Infiniti / Nissan, Generic OBD2, Oldsmobile, Belgee / Geely / Proton, Audi / Jetta / MAN / Seat / Skoda / Volkswagen, Polestar / Volvo

P1734
Gear Control Malfunction

11 reference families · BMW, Chrysler, Ford, GM, Acura / Honda, Genesis / Hyundai / Kia, Jaguar / Land Rover, Dodge / Mitsubishi, Infiniti / Nissan, Generic OBD2, Belgee / Geely / Proton

P1735
First Gear Switch Circuit Malfunction

11 reference families · Chrysler, Ford, GM, Genesis / Hyundai / Kia, Mazda, Mercedes-Benz, Dodge / Mitsubishi, Infiniti / Nissan, Generic OBD2, Belgee / Geely / Proton, GAC / Lexus / Toyota

P1737
Lockup Solenoid System

10 reference families · Chrysler, Ford, GM, Genesis / Hyundai / Kia, Mazda, Mercedes-Benz, Dodge / Mitsubishi, Infiniti / Nissan, Generic OBD2, Belgee / Geely / Proton

P1738
Shift Time Error

11 reference families · BMW, Chrysler, Ford, Acura / Honda, Genesis / Hyundai / Kia, Mazda, Mercedes-Benz, Dodge / Mitsubishi, Infiniti / Nissan, Generic OBD2, Belgee / Geely / Proton

P1739
Slip Solenoid System

12 reference families · Chrysler, Ford, Acura / Honda, Genesis / Hyundai / Kia, Mazda, Mercedes-Benz, Dodge / Mitsubishi, Infiniti / Nissan, Generic OBD2, Belgee / Geely / Proton, Audi / Jetta / MAN / Seat / Skoda / Volkswagen, Polestar / Volvo

P1740
Torque Converter Clutch Inductive Signature Malfunction

17 reference families · Chrysler, Ford, GM, Acura / Honda, Genesis / Hyundai / Kia, Lincoln, Mazda, Mercury, Dodge / Mitsubishi, Infiniti / Nissan, Generic OBD2, Oldsmobile, Plymouth, Belgee / Geely / Proton, GAC / Lexus / Toyota, Audi / Jetta / MAN / Seat / Skoda / Volkswagen, Polestar / Volvo

P1741
Torque Converter Clutch Control Error

15 reference families · Chrysler, Ford, GM, Genesis / Hyundai / Kia, Lincoln, Mazda, Mercedes-Benz, Mercury, Dodge / Mitsubishi, Infiniti / Nissan, Generic OBD2, Oldsmobile, Belgee / Geely / Proton, Audi / Jetta / MAN / Seat / Skoda / Volkswagen, Polestar / Volvo

P1742
Torque Converter Clutch Solenoid Failed On

16 reference families · Chrysler, Ford, GM, Genesis / Hyundai / Kia, Lincoln, Mazda, Mercedes-Benz, Mercury, Dodge / Mitsubishi, Infiniti / Nissan, Generic OBD2, Oldsmobile, Belgee / Geely / Proton, Subaru, Audi / Jetta / MAN / Seat / Skoda / Volkswagen, Polestar / Volvo

P1743
Torque Converter Clutch Solenoid Failied On

17 reference families · BMW, Chrysler, Ford, GM, Genesis / Hyundai / Kia, Lambo, Lincoln, Mazda, Mercedes-Benz, Mercury, Dodge / Mitsubishi, Infiniti / Nissan, Generic OBD2, Oldsmobile, Belgee / Geely / Proton, Audi / Jetta / MAN / Seat / Skoda / Volkswagen, Polestar / Volvo

P1744
Torque Converter Clutch System Performance

17 reference families · BMW, Chrysler, Ford, GM, Genesis / Hyundai / Kia, Lincoln, Mazda, Mercedes-Benz, Mercury, Dodge / Mitsubishi, Infiniti / Nissan, Generic OBD2, Oldsmobile, Porsche, Belgee / Geely / Proton, Audi / Jetta / MAN / Seat / Skoda / Volkswagen, Polestar / Volvo

P1745
Line Pressure Solenoid System

17 reference families · Chrysler, Ford, GM, Genesis / Hyundai / Kia, Jaguar / Land Rover, Lincoln, Mazda, Mercedes-Benz, Mercury, Dodge / Mitsubishi, Infiniti / Nissan, Generic OBD2, Oldsmobile, Belgee / Geely / Proton, GAC / Lexus / Toyota, Audi / Jetta / MAN / Seat / Skoda / Volkswagen, Polestar / Volvo

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