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 847 · 25381–25410 shown

Enhanced PID

AdBlue supply voltage abnormal

Chevrolet · No scalar unit · 1 profiles

Enhanced PID

AdBlue tank heater current

Chevrolet · A · 1 profiles

Enhanced PID

AdBlue tank heater on

Chevrolet · No scalar unit · 1 profiles

Enhanced PID

AdBlue tank status frozen

Chevrolet · No scalar unit · 1 profiles

Enhanced PID

AdBlue temperature

Chevrolet · °C · 1 profiles

Enhanced PID

AdBlue warning level

Chevrolet · No scalar unit · 1 profiles

Enhanced PID

Adaptation of the kick-down switching point

Jetta · mV · 1 profiles

Enhanced PID

Adaptation status Cyl.1

Nissan · No scalar unit · 1 profiles

Enhanced PID

Adaptation status Cyl.2

Nissan · No scalar unit · 1 profiles

Enhanced PID

Adaptation status Cyl.3

Nissan · No scalar unit · 1 profiles

Enhanced PID

Adaptation status Cyl.4

Nissan · No scalar unit · 1 profiles

Enhanced PID

Adblue pressure

Chevrolet · kPa · 1 profiles

Enhanced PID

Added correction at idle

УАЗ · % · 1 profiles

Enhanced PID

Additinal injectiong timing

Hyundai · ms · 1 profiles

Enhanced PID

Additional heater relay 2:3

Buick · No scalar unit · 1 profiles

Enhanced PID

AdjAmbient

Toyota · °F · 1 profiles

Enhanced PID

Adjusted Ambient Temp

Lexus · °C · 1 profiles

Enhanced PID

Adjusted Ambient Temp

Toyota · °C · 2 profiles

Enhanced PID

Adjusted Ambient Temp

Perodua · °C · 1 profiles

Enhanced PID

After Treatment DPF state (0 = None; 1 = Normal; 2 = DENOX; 3 = MISSION REGEN; 4 = DESOX; 5 = Protection; 6 = H2O DESORB; 7 = HC DESORB;8 = NON MISSION REGEN; 9 = SCR TM;10 = MAKE AND MAINTAIN HEAT)

Dodge · No scalar unit · 1 profiles

Enhanced PID

Aftertreatment Intake NOx

Dodge · ppm · 1 profiles

Enhanced PID

Aftertreatment Outlet NOx

Dodge · ppm · 1 profiles

Enhanced PID

Air Con High Side Pressure

Buick · psi · 2 profiles

Enhanced PID

Air Conditioner FB Val

Lexus · No scalar unit · 1 profiles

Enhanced PID

Air Conditioner FB Val

Perodua · No scalar unit · 1 profiles

Enhanced PID

Air Conditioning Lock Signal

Subaru · No scalar unit · 1 profiles

Enhanced PID

Air Conditioning Mid Pressure Switch

Subaru · No scalar unit · 1 profiles

Enhanced PID

Air FLow Cyl.1

Delphi · g/sec · 1 profiles

Enhanced PID

Air FLow Cyl.2

Delphi · g/sec · 1 profiles

Enhanced PID

Air Flow Correction Met

Briggs & Stratton · No scalar unit · 1 profiles

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