DTC P3147-239 Transmission Malfunction; DTC P3147-241 Transmission Malfunction; DTC P3147-602 Transmission Malfunction: 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.

The HV transaxle assembly consists of the planetary gear unit, Motor, and Generator. The gear unit uses the planetary gear to split engine output in accordance with a driving request while the vehicle is driven or the HV battery is charged. The Motor assists engine output while increasing vehicle driving force. The Motor also converts the energy, which is consumed in the form of heat during normal braking, into electrical energy and recover it into the HV battery to effect regenerative braking. The Generator supplies power, which is used for charging the HV battery or driving the Motor. It also controls the stepless transmission function of the transaxle by regulating the amount of electricity generated to change Generator speed. In addition, the Generator is used as a starter Motor to start the engine. The transmission input damper absorbs the shock generated when the driving force from the engine is transmitted.

DTC DETECTION CONDITION - TROUBLE AREA CHART

DTC No.	INF Code	DTC Detection Condition	Trouble Area
P3147	239	HV tansaxle input malfunction (shaft damaged)	Engine Hybrid vehicle transaxle assembly (shaft, gear) Transmission input damper Wire harness or connector w/ converter inverter assembly (MG ECU)
	241	HV transaxle input malfunction (input damper system)	Engine Hybrid vehicle transaxle assembly (shaft, gear) Transmission input damper Wire harness or connector w/ converter inverter assembly (MG ECU)
	602	Transaxle output malfunction	Engine Hybrid vehicle transaxle assembly (shaft, gear) Transmission input damper Wire harness or connector w/ converter inverter assembly (MG ECU)