Typical Enabling Conditions
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.
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| Monitor runs whenever the following DTCs are not stored | P0010, P1360, P1362, P1364, P1366, P2614 (Motor drive VVT system control module) P0011 (VVT system - advance) P0012 (VVT system - retard) P0013 (Exhaust VVT oil control solenoid) P0014 (Exhaust VVT system - advance) P0015 (Exhaust VVT system - retard) P0016 (VVT system - misalignment) P0017 (Exhaust VVT system - misalignment) P0031, P0032, P101D (Air fuel ratio sensor (sensor 1) heater) P0087, P0088, P0191, P0192, P0193 (Fuel pressure sensor (for high pressure side)) P0101, P0102, P0103 (Mass air flow meter) P0107, P0108 (Manifold absolute pressure) P0112, P0113 (Intake air temperature sensor) P0116, P0117, P0118 (Engine coolant temperature sensor) P0121, P0122, P0123, P0222, P0223, P2135 (Throttle position sensor) P014C, P014D, P015A, P015B, P2195, P2196, P2237, P2238, P2239, P2252, P2253 (Air fuel ratio sensor (sensor 1)) P0171, P0172 (Fuel system) P0201, P0202, P0203, P0204, P062D, P21CF, P21D0, P21D1, P21D2 (Fuel injector) P0300 - P0304 (Misfire) P0335, P0337, P0338 (Crankshaft position sensor) P0340, P0342, P0343 (Camshaft position sensor) P0365, P0367, P0368 (Exhaust camshaft position sensor) P0400 (EGR system) P0401 (EGR system (closed)) P0489, P0490 (EGR control circuit) P0500 (Vehicle speed sensor) P059F, P05A0, P05A2, P05A3, P05A4, P05A5, P05B2, P05B3, P05B4, U0284, U1293, (Active grille air shutter) P107B, P107C, P107D (Fuel pressure sensor (for low pressure side)) P11EA, P11EC, P11ED, P11EE, P11EF, P219A, P219C, P219D, P219E, P219F (Air-fuel ratio imbalance) P1235 (High pressure fuel pump circuit) |
JUDGMENT BY SIMULATED ENGINE COOLANT TEMPERATURE
| Battery voltage | 11 V or higher |
| Either of the following conditions is met | 1 or 2 |
| 1. All of the following conditions are met | - |
| Engine coolant temperature at engine start - Intake air temperature (for mass air flow meter sub-assembly) at engine start | -15 to 7°C (-27 to 12.6°F) |
| Engine coolant temperature at engine start | -10 to 56°C (14 to 133°F) |
| Intake air temperature (for mass air flow meter sub-assembly) at engine start | -10 to 56°C (14 to 133°F) |
| 2. All of the following conditions are met | - |
| Engine coolant temperature at engine start - Intake air temperature (for mass air flow meter sub-assembly) at engine start | Higher than 7°C (12.6°F) |
| Engine coolant temperature at engine start | 56°C (133°F) or less |
| Intake air temperature (for mass air flow meter sub-assembly) at engine start | -10°C (14°F) or higher |
| Accumulated time at vehicle speed of 128 km/h (80 mph) or more | Less than 20 seconds |
JUDGMENT BY ENGINE COOLANT TEMPERATURE CHANGE AT HIGH VEHICLE SPEED
| During that all of the following conditions are met | 13 seconds or more |
| Battery voltage | 11 V or higher |
| Engine coolant temperature at engine start | -10°C (14°F) or higher |
| Intake air temperature at engine start | -10°C (14°F) or higher |
| Target engine coolant flow by engine water pump | 1.5 L/min or more |
| Vehicle speed | 65 to 128 km/h (40.625 to 80 mph) |