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Home >> Lexus >> 2019 >> ES 300h Base >> Repair and Diagnosis >> Engine Performance >> System >> Engine Control System (A25A-FXS) - Diagnostic Codes (09 Of 20) >> SFI System >> DTC P0403-18: Exhaust Gas Recirculation "A" Circuit Current Below Threshold; DTC P0403-19: Exhaust Gas Recirculation "A" Circuit Current Above Threshold; DTC P1400-18: Exhaust Gas Recirculation "A" Control Circuit 2 Circuit Current Below Threshold; DTC P1400-19: Exhaust Gas Recirculation "A" Control Circuit 2 Circuit Current Above Threshold [07/2019 - 08/2020] >> Description
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DTC P0403-18: Exhaust Gas Recirculation "A" Circuit Current Below Threshold; DTC P0403-19: Exhaust Gas Recirculation "A" Circuit Current Above Threshold; DTC P1400-18: Exhaust Gas Recirculation "A" Control Circuit 2 Circuit Current Below Threshold; DTC P1400-19: Exhaust Gas Recirculation "A" Control Circuit 2 Circuit Current Above Threshold [07/2019 - 08/2020]: Description

Refer to DTC P0400-00.

Refer to DESCRIPTION [07/2019 - 10/2019] , or refer to DESCRIPTION [10/2019 - 08/2020] 

DTC No. Detection Item DTC Detection Condition Trouble Area MIL Memory Note
P0403-18 Exhaust Gas Recirculation "A" Circuit Current Below Threshold Open or short in EGR A circuit for 1 second or more (1 trip detection logic).
  • Open or short in EGR valve assembly circuit
  • EGR valve assembly
  • ECM
Comes on DTC stored SAE Code: P0489
P0403-19 Exhaust Gas Recirculation "A" Circuit Current Above Threshold Short in EGR A circuit for 1 second or more (1 trip detection logic).
  • Short in EGR valve assembly circuit
  • EGR valve assembly
  • ECM
Comes on DTC stored SAE Code: P0490
P1400-18 Exhaust Gas Recirculation "A" Control Circuit 2 Circuit Current Below Threshold Open or short in EGR B circuit for 1 second or more (1 trip detection logic).
  • Open or short in EGR valve assembly circuit
  • EGR valve assembly
  • ECM
Comes on DTC stored SAE Code: P0489
P1400-19 Exhaust Gas Recirculation "A" Control Circuit 2 Circuit Current Above Threshold Short in EGR B circuit for 1 second or more (1 trip detection logic).
  • Short in EGR valve assembly circuit
  • EGR valve assembly
  • ECM
Comes on DTC stored SAE Code: P0490