DTC P2601-778: Oil Pump Control Range / Performance [11/2016 - ]: Description
WARNING: This page is about a different car, the 2019 Toyota Highlander, 2018 Toyota Highlander, and 2017 Toyota Highlander. However, it is still accessible from the selected car via links, so may be relevant.
The hybrid vehicle control ECU assembly detects the generator (MG1) and motor (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 assembly monitors NOPM signals from the oil pump driver and detects malfunctions.
| DTC No. | Detection Item | DTC Detection Condition | Trouble Area | MIL | Warning Indicate |
|---|---|---|---|---|---|
| P2601-778 | Oil Pump Control Range / Performance | Oil pump fails to start more than set number of times and temperature of motor (MG1) or generator (MG2) exceeds load factor limit temperature when oil pump start request is received. (1 trip detection logic) |
|
Does not come on | Master Warning Light: Comes on |
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 assembly.