DTC P2600-71: Motor/Generator Coolant Pump "A" Actuator Stuck; DTC P2B86-00: Coolant Pump "A" Overspeed/Air in System [08/2023 - ]: Description
WARNING: This page is about a different car, the 2025 Lexus RX 450h+ and 2024 Lexus RX 450h+. However, it is still accessible from the selected car via links, so may be relevant.
Refer to the description for DTC P2600-31.
Refer to DESCRIPTION
| DTC No. | Detection Item | DTC Detection Condition | Trouble Area | MIL | Warning Indicate | DTC Output from | Priority | Note |
|---|---|---|---|---|---|---|---|---|
| P2600-71 | Motor/Generator Coolant Pump "A" Actuator Stuck | When the oil pump startup request signal is output and the oil pump operation has failed a certain number of times or more, after soaking for a certain amount of time, oil pump operation is confirmed to of failed. (2 trip detection logic) |
|
Does not come on | Master Warning: Comes on |
Hybrid Control | A | SAE Code: P2B9C |
| P2B86-00 | Coolant Pump "A" Overspeed/Air in System | When the oil pump startup request signal is output, overspeed is detected a certain number of times or more. (2 trip detection logic) |
|
Does not come on | Master Warning: Comes on |
Hybrid Control | A | SAE Code: P2B86 |
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.