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Home >> Lexus >> 2024 >> TX 350 Base, FWD >> Repair and Diagnosis >> External Pages >> Different car >> Section 41 (Engine Control System - Diagnostic Codes (3 Of 6)) >> 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 [12/2023 - ] >> Monitor Result

Monitor Result

WARNING: This page is about a different car, the 2024 Lexus TX 550h+. However, it is still accessible from the selected car via links, so may be relevant.

Refer to detailed information in Checking Monitor Status.

Refer to CHECKING MONITOR STATUS [12/2023 - ]

P0400: EXHAUST GAS RECIRCULATION/VVT / EGR FLOW

Monitor ID Test ID Scaling Unit Description
$31 $C0 Multiply by 0.01 kPa Delta manifold absolute pressure
P0401: EXHAUST GAS RECIRCULATION/VVT / EGR FLOW INSUFFICIENCY

Monitor ID Test ID Scaling Unit Description
$31 $BD Multiply by 0.01 kPa Reference manifold absolute pressure low flow
P0402: EXHAUST GAS RECIRCULATION/VVT / EGR FLOW EXCESS

Monitor ID Test ID Scaling Unit Description
$31 $BE Multiply by 0.01 kPa Reference manifold absolute pressure high flow