Typical Malfunction Thresholds
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.
P2444, P2446 (AIR PUMP IS STUCK ON)
| Either condition is met | (a) or (b) |
| (a) Secondary Air Injection OFF (Condition 1) | Met |
| (b) Secondary Air Injection OFF (Condition 3) | Met |
P2445, P2447 (AIR PUMP IS STUCK OFF)
| Either condition is met | (a) or (b) |
| (a) Secondary Air Injection ON (Condition 2) | Met |
| (b) Secondary Air Injection ON (Condition 4) | Met |
P2445, P2447 (AIR FLOW VALUE)
| Cumulative pressure pulsation | (a) or (b) |
| (a) Air flow value at Bank 1 or Bank 2 | 140 L/min or less |
| (b) Air flow value at Bank 1 and Bank 2 | 140 L/min or less |
SECONDARY AIR INJECTION ON (CONDITION 1)
| Following conditions are met during AIR ON | - |
| Cumulative pressure pulsation | 10 kPa or higher |
| AIR pressure | 2.4 kPa or higher |
SECONDARY AIR INJECTION ON (CONDITION 2)
| Following conditions are met during AIR ON | - |
| Cumulative pressure pulsation | 10 kPa or higher |
| AIR pressure | Below 2.4 kPa |
SECONDARY AIR INJECTION ON (CONDITION 3)
| Following conditions are met during AIR ON | - |
| Cumulative pressure pulsation | Below 10 kPa |
| AIR pressure | 2.4 kPa or higher |
SECONDARY AIR INJECTION ON (CONDITION 4)
| Following conditions are met during AIR ON | - |
| Cumulative pressure pulsation | Below 10 kPa |
| AIR pressure | Below 2.4 kPa |
SECONDARY AIR INJECTION OFF (CONDITION 1)
| Following conditions are met during AIR OFF | - |
| Cumulative pressure pulsation | 30 kPa or higher |
| AIR pressure | 2.4 kPa or higher |
SECONDARY AIR INJECTION OFF (CONDITION 2)
| Following conditions are met during AIR OFF | - |
| Cumulative pressure pulsation | 30 kPa or higher |
| AIR pressure | Below 2.4 kPa |
SECONDARY AIR INJECTION OFF (CONDITION 3)
| Following conditions are met during AIR OFF | - |
| Cumulative pressure pulsation | Below 30 kPa |
| AIR pressure | 2.4 kPa or higher |
SECONDARY AIR INJECTION OFF (CONDITION 4)
| Following conditions are met during AIR OFF | - |
| Cumulative pressure pulsation | Below 30 kPa |
| AIR pressure | Below 2.4 kPa |