Diagnostic comparisons

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

Code or signal meaning

Reference

Brand context

78,140 matches

Page 526 · 15751–15780 shown

C1864

Battery Module Fault

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

C1865

Air Suspension Rear Inflator Solenoid Output Circuit Failure

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

C1866

Air Suspension Rear Inflator Solenoid Output Circuit Open

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

C1867

Air Suspension Rear Inflator Solenoid Output Circuit Short To Battery

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

C1868

Air Suspension Rear Inflator Solenoid Output Circuit Short To Ground

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

C1869

Air Suspension Gate Solenoid Output Circuit Failure Edge Products 1080 S. Depot Dr. Ogden, UT 84404 888-360-3343 www.edgeproducts.com Ford DTC Codes 30

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

C187

Lost Communication With Digital Disc Player/Changer Module "A"

1 reference families · BMW

C1870

Air Suspension Gate Solenoid Output Circuit Open

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

C1871

Air Suspension Gate Solenoid Output Circuit Short To Battery

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

C1872

Air Suspension Gate Solenoid Output Circuit Short To Ground

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

C1873

Air Suspension RF Air Spring Solenoid Output Circuit Failure

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

C1874

Air Suspension RF Air Spring Solenoid Output Circuit Open

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

C1875

Air Suspension RF Air Spring Solenoid Output Circuit Short To Battery

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

C1876

Air Suspension RF Air Spring Solenoid Output Circuit Short To Ground

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

C1877

Air Suspension LF Air Spring Solenoid Output Circuit Failure

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

C1878

Air Suspension LF Air Spring Solenoid Output Circuit Open

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

C1879

Air Suspension LF Air Spring Solenoid Output Circuit Short To Battery

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

C188

Lost Communication With Digital Disc Player/Changer Module "B"

1 reference families · BMW

C1880

Air Suspension LF Air Spring Solenoid Output Circuit Short To Ground

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

C1881

Air Suspension RF Height Sensor Circuit Failure

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

C1882

Air Suspension RF Height Sensor Circuit Open

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

C1883

Air Suspension RF Height Sensor Circuit Short To Battery

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

C1884

Air Suspension RF Height Sensor Circuit Short To Ground

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

C1885

Air Suspension RR Height Sensor Circuit Failure

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

C1886

Air Suspension RR Height Sensor Circuit Open

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

C1887

Air Suspension RR Height Sensor Circuit Short To Battery

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

C1888

Air Suspension RR Height Sensor Circuit Short To Ground

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

C1889

Air Suspension LF Height Sensor Circuit Failure

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

C189

Lost Communication With Digital Disc Player/Changer Module "C"

1 reference families · BMW

C1890

Air Suspension LF Height Sensor Circuit Open

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