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 [11/2021 - 03/2022]: Description
WARNING: This page is about a different car, the 2025 Lexus NX 250, 2024 Lexus NX 250, 2023 Lexus NX 250, and 2022 Lexus NX 250. However, it is still accessible from the selected car via links, so may be relevant.
Refer to DTC P0400-00.
Refer to DESCRIPTION
| DTC No. | Detection Item | DTC Detection Condition | Trouble Area | MIL | 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). |
|
Comes on | 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). |
|
Comes on | 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). |
|
Comes on | 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). |
|
Comes on | SAE Code: P0490 |