Caution / Notice / Hint
WARNING: This page is about a different car, the 2025 Toyota Corolla Cross, 2024 Toyota Corolla Cross, and 2023 Toyota Corolla Cross. However, it is still accessible from the selected car via links, so may be relevant.
WARNING:
Refer to the precautions before inspecting high voltage circuit.
Refer to PRECAUTION [11/2022 - 12/2024] , or refer to PRECAUTION [12/2024 - ]
NOTE:
- After the ignition switch is turned off, there may be a waiting time before disconnecting the negative (-) auxiliary battery terminal.
Refer to BEFORE DISCONNECTING BATTERY [11/2022 - 11/2023] , or refer to BEFORE DISCONNECTING BATTERY [11/2023 - ]
- When disconnecting and reconnecting the auxiliary battery
HINT:
When disconnecting and reconnecting the auxiliary battery, there is an automatic learning function that completes learning when the respective system is used.
HINT:
- P0A93-00 may be output as a result of the malfunction indicated by the DTCs in table below.
- The chart above is listed in inspection order of priority.
- Check DTCs that are output at the same time by following the listed order. (The main cause of the malfunction can be determined without performing unnecessary inspections.)
TABLE 1
| Malfunction Content | System | Relevant DTC | |
|---|---|---|---|
| Insulation malfunction | Hybrid Control System | P1C7C-49 | Hybrid/EV Battery Voltage System Isolation (A/C Area) Internal Electronic Failure |
| P1C7D-49 | Hybrid/EV Battery Voltage System Isolation (Hybrid/EV Battery Area) Internal Electronic Failure | ||
| P1C7E-49 | Hybrid/EV Battery Voltage System Isolation (Transaxle Area) Internal Electronic Failure | ||
| P1C7F-49 | Hybrid/EV Battery Voltage System Isolation (Direct Current Area) Internal Electronic Failure | ||
| P1C80-49 | Hybrid/EV Battery Voltage System Isolation (Rear Motor Area) Internal Electronic Failure | ||
TABLE 2
| Malfunction Content | System | Relevant DTC | |
|---|---|---|---|
| Sensor and actuator circuit malfunction | Hybrid Control System | P0C73-96 | Motor Electronics Coolant Pump "A" Component Internal Failure |
| P314A-31 | Motor Electronics Coolant Pump "A" No Signal | ||
| Motor Generator Control System | P0A00-11 | Motor Electronics Coolant Temperature Sensor Circuit Short to Ground | |
| P0A00-15 | Motor Electronics Coolant Temperature Sensor Circuit Short to Battery or Open | ||