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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

78,140 matches

Page 615 · 18421–18450 shown
P0942
Hydraulic pressure unit

7 reference families · BMW, Changan, Dodge / Mitsubishi, Infiniti / Nissan, Generic OBD2, Belgee / Geely / Proton, GAC / Lexus / Toyota

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