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Home >> Lexus >> 2017 >> GX 460 Base >> Repair and Diagnosis >> Engine Performance >> System >> Engine Control System (Diagnostic Codes) (3 Of 7) >> SFI System >> DTC P0403: Exhaust Gas Recirculation Control Circuit [08/2022 - ] >> Description

DTC P0403: Exhaust Gas Recirculation Control Circuit [08/2022 - ]: Description

Refer to DTC P0400 (Refer to DTC P0400: Exhaust Gas Recirculation Flow; DTC P0401: Exhaust Gas Recirculation Flow Insufficient Detected; DTC P0402: Exhaust Gas Recirculation Flow Excessive Detected [08/2022 - ] ).

DTC No. DTC Detection Condition Trouble Area
P0403 Open or short in the EGR valve circuit (1 trip detection logic).
  • Open or short in EGR valve circuit
  • EGR valve assembly
  • ECM

HINT: 

DTC P0403 is stored when the engine switch is on (IG).