Typical Malfunction Thresholds
WARNING: This page is about a different car, the 2024 Lexus TX 500h. However, it is still accessible from the selected car via links, so may be relevant.
CONDITION (A)
| Electric/auxiliary transmission fluid pump "A" motor coil temperature | Below 20°C (68°F) |
CONDITION (B)
| Initial Electric/auxiliary transmission fluid pump "A" motor coil temperature*1 | 100°C (212°F) or higher |
CONDITION (C)
| Initial Electric/auxiliary transmission fluid pump "A" motor coil temperature*1 | 100°C (212°F) or higher |
HINT:
*1: Initial electric/auxiliary transmission fluid pump "A" motor coil temperature when following conditions met
| All of the following conditions are met | (a), (b), (c) and (d) |
| (a) DS_active_pressure*2 | TRUE |
| (b) Transmission fluid temperature sensor "A" circuit (P0712, P0713) | Not circuit malfunction |
| (c) Transmission fluid temperature sensor "A" rationality (P0711) | Fail-safe does not active |
| (d) IAT sensor circuit (P0112, P0113) | Not circuit malfunction |
*2: Following condition (1) or condition (2) is met
CONDITION (1)
| Following condition is met | 2 seconds or more |
| Auxiliary battery voltage | 9.5 V or higher |
| Drive motor "A" revolution | 500 rpm or more |
| Lost communication with drive motor control module "A" (ch4) (U117E) | Not detected |
| Drive motor "A" revolution sensor (P06B0, P06D6, P0A1B, P0A3F, P0A40, P0A41, P0A42, P0C50, P0C52, P0C53, P0C5A, P0C5C, P0C5D, P1C2B, P1CAD, P1CB0) | Not system down |
CONDITION (2)
| Following condition is met | 0.7 seconds or more at transmission fluid temperature 30°C (86°F) (conditions vary with transmission fluid temperature) |
| Auxiliary battery voltage | 9.5 V or higher |
| Electric/auxiliary transmission fluid pump "A" motor (P18C2, P18C7, P18CC, P18C1, P18CB, P18C3, P18C8, P18CD, P18C9, P18CE, P18D2, P18D3, P18D5, P18D7, P18D6, P2797, P18C6, P18C4, P18D1, P18D4, U117F, P3176, P3177, P317E) | Not system down |
| Electric/auxiliary transmission fluid pump "A" motor is not shutdown | - |
| Either condition is met | (a) or (b) |
| (a) Solenoid (SRL1) valve (P0974) | Not circuit malfunction |
| (b) Solenoid (SRL1) valve (P0751) | Fail-safe does not active |
| Solenoid (SRL1) valve | OFF |
| Target electric/auxiliary transmission fluid pump "A" motor speed | 100 rpm or more |
| Lost communication with electric/auxiliary transmission fluid pump (U116B) | Not detected |