Typical Enabling Conditions
P0400, P0402
| Monitor runs whenever the following DTCs are not stored | None |
| Time after engine started | 3 seconds or more |
| Time after engine fuel cut | 2.6 seconds or more |
| Engine speed | 950 to 1600 rpm |
| Vehicle speed | 20 km/h (12.5 mph) or more |
| Engine coolant temperature | 75°C (167°F) or higher |
| Battery voltage | 11 V or higher |
| Intake air temperature | -10°C (14°F) or higher |
| Atmospheric pressure | 76 kPa(abs) (11 psi(abs)) or higher |
P0401
| 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) P0102, P0103 (Mass air flow meter) P0106, P0107, P0108 (Manifold absolute pressure) P0112, P0113 (Intake air temperature sensor) P0115, P0117, P0118 (Engine coolant temperature sensor) P0120, P0121, P0122, P0123, P0220, P0222, P0223, P2135 (Throttle position sensor) P0125 (Insufficient engine coolant temperature for closed loop fuel control) 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) P0327, P0328, P0332, P0333 (Knock control sensor) P0335 (Crankshaft position sensor) P0340, P0342, P0343, P0345, P0347, P0348 (VVT sensor) P0351, P0352, P0353, P0354, P0355, P0356 (Igniter) P0365, P0367, P0368, P0390, P0392, P0393 (Exhaust VVT sensor) P106A (Evaporative emission control system pressure sensor - manifold pressure sensor correlation) P11EA, P11EB, P11EC, P11ED, P11EE, P11EF, P11F0, P11F1, P219A, P219B, P219C, P219D, P219E, P219F, P21A0, P21A1 (Air-fuel ratio imbalance) |
| Time after engine started | 3 seconds or more |
| Time after engine fuel cut | 2.6 seconds or more |
| Engine speed | 950 to 1600 rpm |
| Vehicle speed | 20 km/h (12.5 mph) or more |
| Engine coolant temperature | 75°C (167°F) or higher |
| Battery voltage | 11 V or higher |
| Intake air temperature | -10°C (14°F) or higher |
| Atmospheric pressure | 76 kPa(abs) (11 psi(abs)) or higher |