Typical Enabling Conditions
WARNING: This page is about a different car, the 2018 Toyota Sequoia, 2017 Toyota Sequoia, and 2016 Toyota Sequoia. However, it is still accessible from the selected car via links, so may be relevant.
ALL
| Monitor runs whenever following DTCs not stored | P0010, P0020 (Camshaft Timing Oil Control Valve) P0011, P0021 (VVT System - Advance) P0012, P0022 (VVT System - Retard) P0016, P0018 (VVT System - Misalignment) P0013, P0023 (Exhaust Camshaft Timing Oil Control Valve) P0014, P0024 (Exhaust VVT System - Advance) P0015, P0025 (Exhaust VVT System - Retard) P0017, P0019 (Exhaust VVT System - Misalignment) P0031, P0032, P0051, P0052, P101D, P103D (Air Fuel Ratio Sensor Heater) 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) P0102, P0103 (Mass Air Flow Meter) P0112, P0113 (Intake Air Temperature Sensor) P0115, P0117, P0118 (Engine Coolant Temperature Sensor) P0125 (Insufficient Coolant Temperature for Closed Loop Fuel Control) P0120, P0121, P0122, P0123, P0220, P0222, P0223, P2135 (Throttle Position Sensor) P0171, P0172, P0174, P0175 (Fuel System) P0300 - P0308 (Misfire) P0327, P0328, P0332, P0333, P032C, P032D, P033C, P033D (Knock Sensor) P0335 (Crankshaft Position Sensor) P1340 (Camshaft Position Sensor) P0340, P0342, P0343, P0345, P0347, P0348 (VVT Sensor) P0365, P0367, P0368, P0390, P0392, P0393 (Exhaust VVT Sensor) P0351 - P0358 (Igniter) P0451, P0452, P0453 (EVAP System) P0500, P0722 (Vehicle Speed Sensor) P106B (EVAP. emission control system pressure sensor - Air injection system pressure sensor correlation) P219A, P219B, P219C, P219D, P219E, P219F, P21A0, P21A1, P21A2, P21A3 (Air-fuel ratio imbalance) P2431, P2432, P2433, P2436, P2437, P2438 (Secondary Air Injection System Pressure Sensor) |
P2440, P2442 (AIR VALVE IS STUCK OPEN) [CASE 1], P2441, P2443 (AIR VALVE IS STUCK CLOSED)
| Battery voltage | 11 V or higher |
| Atmospheric pressure | 45 kPa (337.5 mmHg) or more |
| Engine | Running |
| AIR monitor during AIR: ON*1 | Completed |
| AIR monitor during AIR: OFF*2 | Completed |
| Air injection driver (open/short or out of range) | Not detected |
| AIR pressure sensor (open/short or out of range) | Not detected |
*1: AIR MONITOR DURING AIR: ON
| Time after AIR in operation | 5 seconds or more |
| AIR pump | ON |
| AIR valve | Open |
| Engine speed | 400 to 3550 RPM |
| Intake air amount | Less than 99 gm/sec |
| Time after engine start | 1 second or more |
*2: AIR MONITOR DURING AIR: OFF
| Time after AIR in operation | 10 seconds or more |
| AIR pump | OFF |
| AIR valve | Closed |
| Engine speed | Less than 2800 RPM |
| AIR monitor during AIR: ON | Completed |
| Time after engine started | 1 second or more |
P2440, P2442 (AIR VALVE IS STUCK OPEN) [CASE 2]
| One of the following conditions is met | (a), (b) or (c) |
| (a) Cumulative intake air amount | 100 gm/sec or more |
| (b) Difference between starting temperature and current temperature | 10°C (18°F) or more |
| (c) Starting coolant temperature | 67°C (152°F) or higher |
| AIR pump | OFF |
| AIR valve | Closed |
| Engine speed | 3750 or less |
| Secondary air injection system pressure sensor failure (open/short or out of range) | Not detected |
| Time after engine started | 1 second or more |
| Time after secondary air injection starts operation | 10 seconds or more |
| Air switching valve stuck open (DTC P2440, P2442) | Not stored |
| Secondary air injection system pressure sensor stuck (DTC P2445, P2447) | Not in operation |
| Engine load | 20% or more |