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Home >> Lexus >> 2023 >> LC 500h >> Repair and Diagnosis >> Engine Performance >> System >> Engine Control System - Diagnostic Codes (5 Of 9) >> SFI System >> DTC P0403-14: Exhaust Gas Recirculation "A" Control Circuit 1 Open; DTC P1400-00: Exhaust Gas Recirculation "A" Control Circuit 2 Open; DTC P1405-96: Exhaust Gas Recirculation "A" Control Circuit 3 Open; DTC P1410-04: Exhaust Gas Recirculation "A" Control Circuit 4 Open [04/2020 - ] >> Description
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DTC P0403-14: Exhaust Gas Recirculation "A" Control Circuit 1 Open; DTC P1400-00: Exhaust Gas Recirculation "A" Control Circuit 2 Open; DTC P1405-96: Exhaust Gas Recirculation "A" Control Circuit 3 Open; DTC P1410-04: Exhaust Gas Recirculation "A" Control Circuit 4 Open [04/2020 - ]: Description

Refer to DTC P0400-00.

Refer to DTC P0400-00: Exhaust Gas Recirculation "A" Flow; DTC P0401-9C: Exhaust Gas Recirculation "A" Low / Insufficient Flow; DTC P0402-9B: Exhaust Gas Recirculation "A" High/Excessive Flow [04/2020 - ]

DTC No. Detection Item DTC Detection Condition Trouble Area MIL Memory Note
P0403-14 Exhaust Gas Recirculation "A" Control Circuit 1 Open Open or short in EGR1 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: P0403
P1400-00 Exhaust Gas Recirculation "A" Control Circuit 2 Open Open or short in EGR2 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: P0403
P1405-96 Exhaust Gas Recirculation "A" Control Circuit 3 Open Open or short in EGR3 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: P0403
P1410-04 Exhaust Gas Recirculation "A" Control Circuit 4 Open Open or short in EGR4 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: P0403