DTC P2601-777: Oil Pump Control Circuit Range / Performance: Description
The hybrid vehicle control ECU detects the MG1 and MG2 temperature based on signals from the generator and motor temperature sensors and activates the OIL PMP relay and oil pump driver (oil pump with motor assembly).
The hybrid vehicle control ECU monitors OPST signals from the oil pump driver and detects malfunctions.
| DTC No. | INF Code | DTC Detection Condition | Trouble Area |
|---|---|---|---|
| P2601 | 777 | Command signal (OPM1) from hybrid vehicle control ECU is abnormal |
|
The oil pump with motor assembly is activated when:
1. MG1 temperature is 176°F (80°C) or more
2. MG2 temperature is 212°F (100°C) or more and the MG1 temperature is 158°F (70°C) or more
HINT:
The oil pump with motor assembly cannot be activated only with the OIL PMP relay on. It is activated after receiving the command signals (OPM1) from the hybrid vehicle control ECU.