Typical Enabling Conditions
WARNING: This page does not describe the selected car, but rather 6 other vehicles, including the 2024 Lexus UX 250h, 2023 Lexus UX 250h, 2022 Lexus UX 250h, 2021 Lexus UX 250h, and 2020 Lexus UX 250h. However, it is still accessible from the selected car via links, so may be relevant.
ALL
| Monitor runs whenever the following DTCs are not stored | P0010, P0020 (VVT oil control solenoid bank 1, 2) P0011, P0021 (VVT system bank 1, 2 - advance) P0012, P0022 (VVT system bank 1, 2 - retard) P0013, P0023 (Exhaust VVT oil control solenoid bank 1, 2) P0014, P0024 (Exhaust VVT system bank 1, 2 - advance) P0015, P0025 (Exhaust VVT system bank 1, 2 - retard) P0016, P0018 (VVT system bank 1, 2 - misalignment) P0017, P0019 (Exhaust VVT system bank 1, 2 - misalignment) P0031, P0032, P0051, P0052, P101D, P103D (Air fuel ratio sensor heater) P0087, P0088, P0191, P0192, P0193 (Fuel pressure sensor (for high pressure side)) P0101, P0102, P0103 (Mass air flow meter) P0111, P0112, P0113 (Intake air temperature sensor) P0116, P0117, P0118 (Engine coolant temperature sensor) P011B (Engine coolant temperature/intake air temperature sensor correlation) P0121, P0122, P0123, P0222, P0223, P2135 (Throttle position sensor) P014C, P014D, P014E, P014F, P015A, P015B, P015C, P015D, P2195, P2196, P2197, P2198, P2237, P2238, P2239, P2240, P2241, P2242, P2252, P2253, P2255, P2256 (Air fuel ratio sensor) P0171, P0172, P0174, P0175 (Fuel system) P0201, P0202, P0203, P0204, P0205, P0206, P062D, P21CF, P21D0, P21D1, P21D2, P21D3, P21D4 (Fuel injector) P0300 - P0306 (Misfire) P0335, P0337, P0338 (Crankshaft position sensor) P0340, P0342, P0343, P0345, P0347, P0348 (Camshaft position sensor) P0365, P0367, P0368, P0390, P0392, P0393 (Exhaust camshaft position sensor) P0351 - P0356 (Igniter) P0500 (Vehicle speed sensor) P107B, P107C, P107D (Fuel pressure sensor (for low pressure side)) P11EA, P11EB, P11EC, P11ED, P11EE, P11EF, P11F0, P11F1, P219A, P219B P219C, P219D, P219E, P219F, P21A0, P21A1 (Air-fuel ratio imbalance) P1235 (High pressure fuel pump circuit) |
P012800: JUDGMENT BY SIMULATED ENGINE COOLANT TEMPERATURE
| Auxiliary battery voltage | 11 V or higher |
| Either of the following conditions is met | 1 or 2 |
| 1. All of the following conditions are met | (a), (b) and (c) |
| (a) 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) |
| (b) Engine coolant temperature at engine start | -10 to 56°C (14 to 133°F) |
| (c) 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 | (d), (e) and (f) |
| (d) 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) |
| (e) Engine coolant temperature at engine start | 56°C (133°F) or less |
| (f) 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 |
P012807: JUDGMENT BY ENGINE COOLANT TEMPERATURE CHANGE AT HIGH VEHICLE SPEED
| During that all of the following conditions are met | 15 seconds or more |
| Auxiliary 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 electric water pump | 1.5 L/min or more |
| Vehicle speed | 65 to 128 km/h (40.625 to 80 mph) |