Typical Enabling Conditions
WARNING: This page is about a different car, the 2025 Lexus NX 350, 2024 Lexus NX 350, 2023 Lexus NX 350, and 2022 Lexus NX 350. However, it is still accessible from the selected car via links, so may be relevant.
MISFIRE
| Monitor runs whenever the following DTCs are not stored | P0016 (VVT system - misalignment) P0017 (Exhaust VVT system - misalignment) P0101, P0102, P0103 (Mass air flow meter) P0107, P0108 (Manifold absolute pressure) P0112, P0113 (Intake air temperature sensor) P0117, P0118 (Engine coolant temperature sensor) P0121, P0122, P0123, P0222, P0223, P2135 (Throttle position sensor) P0125 (Insufficient coolant temperature for closed loop fuel control) P0327, P0328 (Knock control sensor) P0335, P0337, P0338 (Crankshaft position sensor) P0340, P0342, P0343 (Camshaft position sensor) P0365, P0367, P0368 (Exhaust camshaft position sensor) P0500 (Vehicle speed sensor) |
| Battery voltage | 8 V or higher |
| VVT system | Not operated by scan tool |
| Engine speed | 400 to 6200 rpm |
| Either of the following conditions is met | (a) or (b) |
| (a) Engine coolant temperature at engine start | Higher than -7°C (19°F) |
| (b) Engine coolant temperature | Higher than 20°C (68°F) |
| Fuel cut | Off |
MONITOR PERIOD OF EMISSION-RELATED MISFIRE
| First 1000 revolutions after engine start, or during check mode | Crankshaft 1000 revolutions |
| Except above | Crankshaft 1000 revolutions x 4 |
MONITOR PERIOD OF CATALYST-DAMAGING MISFIRE (MIL BLINKS)
| All of the following conditions 1, 2, 3 and 4 are met | Crankshaft 200 revolutions x 3 |
| Except above (MIL blinks immediately) | Crankshaft 200 revolutions |
| 1. Driving cycles | 1st |
| 2. Check mode | Off |
| 3. Engine speed | Less than 2200 rpm |
| 4. Engine load | Less than 85% |