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

23,879 matches

Page 511 · 15301–15330 shown

C1420

Hydraulic Fluid Pressure/ Flow Circuit Short to Vbatt

4 reference families · Ford, Dodge / Mitsubishi, Infiniti / Nissan, Belgee / Geely / Proton

C1421

Damper LF Circuit Short To Battery

4 reference families · Ford, Dodge / Mitsubishi, Infiniti / Nissan, Belgee / Geely / Proton

C1422

Damper LF Circuit Short to Ground

4 reference families · Ford, Dodge / Mitsubishi, Infiniti / Nissan, Belgee / Geely / Proton

C1423

Damper LF Circuit Failure

4 reference families · Ford, Dodge / Mitsubishi, Infiniti / Nissan, Belgee / Geely / Proton

C1424

Damper LF Circuit Open

4 reference families · Ford, Dodge / Mitsubishi, Infiniti / Nissan, Belgee / Geely / Proton

C1425

Damper RR Circuit Short to Ground

4 reference families · Ford, Dodge / Mitsubishi, Infiniti / Nissan, Belgee / Geely / Proton

C1426

Damper RR Circuit Short To Battery

4 reference families · Ford, Dodge / Mitsubishi, Infiniti / Nissan, Belgee / Geely / Proton

C1427

Damper RR Circuit Open

4 reference families · Ford, Dodge / Mitsubishi, Infiniti / Nissan, Belgee / Geely / Proton

C1428

Damper RR Circuit Failure

4 reference families · Ford, Dodge / Mitsubishi, Infiniti / Nissan, Belgee / Geely / Proton

C1429

Input-shaft-speed input circuit failure

4 reference families · Ford, Dodge / Mitsubishi, Infiniti / Nissan, Belgee / Geely / Proton

C143

Lost Communication With Body Control Module "C"

1 reference families · BMW

C1430

Damper LR Circuit Open

4 reference families · Ford, Dodge / Mitsubishi, Infiniti / Nissan, Belgee / Geely / Proton

C1431

Damper LR Circuit Short To Battery

4 reference families · Ford, Dodge / Mitsubishi, Infiniti / Nissan, Belgee / Geely / Proton

C1432

Damper LR Circuit Short to Ground

4 reference families · Ford, Dodge / Mitsubishi, Infiniti / Nissan, Belgee / Geely / Proton

C1433

Damper LR Circuit Failure

4 reference families · Ford, Dodge / Mitsubishi, Infiniti / Nissan, Belgee / Geely / Proton

C1435

Accelerometer Rear Circuit Failure

4 reference families · Ford, Dodge / Mitsubishi, Infiniti / Nissan, Belgee / Geely / Proton

C1436

Accelerometer Rear Circuit Signal Is Not Sensed

4 reference families · Ford, Dodge / Mitsubishi, Infiniti / Nissan, Belgee / Geely / Proton

C1437

Accelerometer Rear Circuit Short To Ground

4 reference families · Ford, Dodge / Mitsubishi, Infiniti / Nissan, Belgee / Geely / Proton

C1438

Accelerometer Rear Circuit Short To Battery

4 reference families · Ford, Dodge / Mitsubishi, Infiniti / Nissan, Belgee / Geely / Proton

C1439

Vehicle Acceleration EEC-IV Circuit Failure

4 reference families · Ford, Dodge / Mitsubishi, Infiniti / Nissan, Belgee / Geely / Proton

C144

Lost Communication With Body Control Module "D"

1 reference families · BMW

C1440

Pressure Transducer Main / Primary signal Faulted

4 reference families · Ford, Dodge / Mitsubishi, Infiniti / Nissan, Belgee / Geely / Proton

C1441

Steering Phase A Circuit Signal Is Not Sensed

4 reference families · Ford, Dodge / Mitsubishi, Infiniti / Nissan, Belgee / Geely / Proton

C1442

Steering Phase B Circuit Signal Is Not Sensed

4 reference families · Ford, Dodge / Mitsubishi, Infiniti / Nissan, Belgee / Geely / Proton

C1443

Steering Phase A Circuit Short To Ground

4 reference families · Ford, Dodge / Mitsubishi, Infiniti / Nissan, Belgee / Geely / Proton

C1444

Steering Phase B Circuit Short To Ground

4 reference families · Ford, Dodge / Mitsubishi, Infiniti / Nissan, Belgee / Geely / Proton

C1445

Speed Vehicle Signal Circuit Failure

4 reference families · Ford, Dodge / Mitsubishi, Infiniti / Nissan, Belgee / Geely / Proton

C1446

Brake Switch Circuit Failure

4 reference families · Ford, Dodge / Mitsubishi, Infiniti / Nissan, Belgee / Geely / Proton

C1447

Traction Control Module Request Circuit Failure

4 reference families · Ford, Dodge / Mitsubishi, Infiniti / Nissan, Belgee / Geely / Proton

C1448

Lamp Adaptive Damping Warning Circuit Failure

4 reference families · Ford, Dodge / Mitsubishi, Infiniti / Nissan, Belgee / Geely / Proton

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