DTC P2601-778 Coolant Pump Control Circuit Range / Performance: Description

WARNING: This page is about a different car, the 2006 Lexus RX 400h. However, it is still accessible from the selected car via links, so may be relevant.

HINT:

This is the repair procedure for the "oil pump control circuit".

Refer to the description for DTC P2601-777 .

DTC DETECTION CONDITION - TROUBLE AREA CHART

DTC No.	INF No.	DTC Detection Condition	Trouble Area
P2601	778	Ambient temperature is 5°C (41°F) or more Duty output from oil pump driver is between 65 and 75 % Oil pump w/ motor assembly does not start	Ambient temperature sensor Fluid piping Oil pump w/ motor assembly