Typical Enabling Conditions
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.
| DS_active_wake*1 | TRUE |
| Pressure control solenoid driver error (P1700) | Not detected |
| Solenoid current cut status | Not cut |
| Time after solenoid current cut status cut to not cut | 0.02 seconds or more |
| Detection condition by HSDN*2 | TRUE |
| Pressure control solenoid driver status BATT short | Not Occurred |
| Pressure control solenoid driver status GND short | Not Occurred |
| Solenoid (SL8) valve error (P27CF, P27D0) | Not detected |
| Target current | 0.02 A or higher |
HINT:
*1: DS_active_wake
| Following condition is met | 0.5 seconds or more |
| Auxiliary battery voltage | 9.5 V or higher |
*2: Detection condition by HSDN
| Either of the following conditions is met | (A) or (B) |
| (A) All of the following conditions are met | - |
| Lost communication with hybrid/EV powertrain control module (ch5) fault | Not detected |
| Lost communication with hybrid/EV powertrain control module (ch5) malfunction (U11B3) | Not detected |
| Powertrain local bus back up running not required | - |
| HSDNTM signal from Hybrid/EV | OFF |
| Time after HSDNTM signal from hybrid/EV ON to OFF | 0.06 seconds or more |
| Either of the following conditions is met | (a) or (b) |
| (a) Both conditions are met | - |
| - Solenoid current cut status from HSDNM | Cut |
| - Time after solenoid current cut status from HSDNM not cut to cut | 0.06 seconds or more |
| (b) Both conditions are met | - |
| - Solenoid current cut status from HSDNM | Not cut |
| - Time after solenoid current cut status from HSDNM cut to not cut | 0.02 seconds or more |
| (B) All of the following conditions are met | - |
| One of the following conditions is met | (a), (b) or (c) |
| (a) Lost communication with hybrid/EV powertrain control module (ch5) fault | Detected |
| (b) Lost communication with hybrid/EV powertrain control module (ch5) malfunction (U11B3) | Detected |
| (c) Powertrain local bus back up running required | - |
| Solenoid current cut status from HSDNM | Not cut |
| Time after solenoid current cut status from HSDNM cut to not cut | 0.02 seconds or more |