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Home >> Lexus >> 2021 >> ES 300h Base >> Repair and Diagnosis >> Engine Performance >> System >> Engine Control System (A25A-FXS) - Diagnostic Codes (09 Of 20) >> SFI System >> 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 [07/2019 - 10/2019] >> Typical Malfunction Thresholds
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Typical Malfunction Thresholds

P0400 (FOR TMC MADE)

Manifold pressure change* Less than 1.72 kPa [0.25 psi] (at engine speed 1000 rpm)
P0401 (FOR TMC MADE, EXCEPT MEXICO MODELS)

Manifold pressure change* Less than 1.72 kPa [0.25 psi] (at engine speed 1000 rpm)
Manifold pressure Less than 41.5 kPa [6.02 psi]
P0402 (FOR TMC MADE, EXCEPT MEXICO MODELS)

Manifold pressure change* Less than 1.72 kPa [0.25 psi] (at engine speed 1000 rpm)
Manifold pressure 41.5 kPa [6.02 psi] or more
*: Calculated by EGR valve open and close -
P0401 (FOR TMMK MADE)

Manifold pressure change Less than 1.72 kPa [0.25 psi]
At engine speed 1000 rpm