DTC P2600-31: Motor/Generator Coolant Pump "A" Control Circuit No Signal [12/2019 - 11/2023]: Description

WARNING: This page is about a different variant/trim than selected.

The hybrid vehicle control ECU 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 monitors NOPM signals from the oil pump driver (oil pump with motor assembly) and detects malfunctions.

DTC No.	Detection Item	DTC Detection Condition	Trouble Area	MIL	Warning Indicate
P2600-31	Motor/Generator Coolant Pump "A" Control Circuit No Signal	When the OIL PMP relay is on, the NOPM pulse signal is not output. (2 trip detection logic)	Oil pump with motor assembly Hybrid vehicle control ECU Wire harness or connector OIL PMP relay OIL PMP fuse	Does not come on	Master Warning: Comes on

RELATED DATA LIST

DTC No.	Data List
P2600-31	Target Motor/Generator Cooling Oil Pump Motor Duty Motor/Generator Cooling Oil Pump Motor Revolution Motor/Generator Cooling Oil Pump Motor Power Relay Request

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.