Typical Malfunction Thresholds
P1442 AIR valve bank 1 close stuck
TYPICAL MALFUNCTION THRESHOLDS
| When both conditions below are met | Condition 1 and 2 |
| 1 When one of following conditions is met | Condition (a), (b), (c) or (d) |
| (a) When both conditions below are met | Condition (1)and (2) |
| (1) When both conditions below are met (during AIR ON) | - |
| - Cumulative pressure pulsation | Less than 9 kPa |
| - AIR pressure | 1 kPa or more |
| (2) When both conditions below are met (during AIR OFF) | - |
| - Cumulative pressure pulsation | Less than 30 kPa |
| - AIR pressure | 5 kPa or more |
| (b) When both conditions below are met | Condition (1)and (2) |
| (1) When both conditions below are met (during AIR ON) | - |
| - Cumulative pressure pulsation | Less than 9 kPa |
| - AIR pressure | 1 kPa or more |
| (2) When both conditions below are met (during AIR OFF) | - |
| - Cumulative pressure pulsation | Less than 20 kPa |
| - AIR pressure | Less than 5 kPa |
| (c) When both conditions below are met | Condition (1)and (2) |
| (1) When both conditions below are met (during AIR ON). | - |
| - Cumulative pressure pulsation | Less than 0 kPa |
| - AIR pressure | Less than 1 kPa |
| (2) When both conditions below are met (during AIR OFF). | - |
| - Cumulative pressure pulsation | Less than 30 kPa |
| - AIR pressure | 5 kPa or more |
| (d) When both conditions below are met | Condition (1) or (2) |
| (1) When both conditions below are met (during AIR ON) | - |
| - Cumulative pressure pulsation | Less than 0 kPa |
| - AIR pressure | Less than 1 kPa |
| (2) When both conditions below are met (during AIR OFF): | - |
| - Cumulative pressure pulsation | Less than 20 kPa |
| - AIR pressure | Less than 5 kPa |
| 2. When one of following conditions is met | Condition (a), (b) or (c) |
| (a) AIR pressure change at monitor sequence 1 (for AIR valve bank 1) | Less than 1 kPa |
| (b) AIR pressure change at monitor sequence 2 (for AIR valve bank 1) | Less than 1 kPa |
| (c) Cumulative pressure pulsation during monitor sequence 4-1 (for AIR valve bank 1) | Less than 15 kPa |
P1445 AIR valve bank 2 close stuck
TYPICAL MALFUNCTION THRESHOLDS
| When both conditions below are met. | Condition 1 and 2 |
| 1 When one of following conditions is met. | Condition (a), (b), (c) or (d) |
| (a) When both conditions below are met | Condition (1)and (2) |
| (1) When both conditions below are met (during AIR ON): | - |
| - Cumulative pressure pulsation | Less than 9 kPa |
| - AIR pressure | 1 kPa or more |
| (2) When both conditions below are met (during AIR OFF). | - |
| - Cumulative pressure pulsation | Less than 30 kPa |
| - AIR pressure | 5 kPa or more |
| (b) When both conditions below are met | Condition (1)and (2) |
| (1) When both conditions below are met (during AIR ON) | - |
| - Cumulative pressure pulsation | Less than 9 kPa |
| - AIR pressure | 1 kPa or more |
| (2) When both conditions below are met (during AIR OFF). | - |
| - Cumulative pressure pulsation | Less than 20 kPa |
| - AIR pressure | Less than 5 kPa |
| (c) When both conditions below are met | Condition (1)and (2) |
| (1) When both conditions below are met (during AIR ON): | - |
| - Cumulative pressure pulsation | Less than 0 kPa |
| - AIR pressure | Less than 1 kPa |
| (2) When both conditions below are met (during AIR OFF) | - |
| - Cumulative pressure pulsation | Less than 30 kPa |
| - AIR pressure | 5 kPa or more |
| (d) When both conditions below are met | Condition (1) or (2) |
| (1) When both conditions below are met (during AIR ON). | - |
| - Cumulative pressure pulsation | Less than 0 kPa |
| - AIR pressure | Less than 1 kPa |
| (2) When both conditions below are met (during AIR OFF). | - |
| - Cumulative pressure pulsation | Less than 20 kPa |
| - AIR pressure | Less than 5 kPa |
| 2 When one of following conditions is met. | Condition (a), (b) or (c) |
| (a) AIR pressure change at monitor sequence 1 (for AIR valve bank 2) | Less than 1 kPa |
| (b) AIR pressure change at monitor sequence 2 (for AIR valve bank 2) | Less than 1 kPa |
| (c) Cumulative pressure pulsation during monitor sequence 4-1 (for AIR valve bank 2) | Less than 15 kPa |
P2441 AIR valve close stuck
TYPICAL MALFUNCTION THRESHOLDS
| When both conditions below are met (during AIR ON) | Condition 1 and 2 |
| 1 Cumulative pressure pulsation | Less than 9 kPa |
| 2 AIR pressure | 1 kPa or more |