Last Modified: 7-3-2017 6.8:8.0.40 Doc ID: RM000001A4H001X
Model Year Start: 2007 Model: LX470 Prod Date Range: [08/2006 -           ]
Title: SEAT: FRONT POWER SEAT CONTROL SYSTEM (w/ Memory): Power Seat Power Source Circuit; 2007 MY LX470 [08/2006 -        ]

Power Seat Power Source Circuit

DESCRIPTION

This is the power source for the slide motor, reclining motor, front vertical motor and lifter motor.

WIRING DIAGRAM

INSPECTION PROCEDURE

PROCEDURE

1.

INSPECT FUSE (LH SEAT)
NG

CHECK FOR SHORT IN ALL HARNESS AND COMPONENTS CONNECTED TO FUSE, AND REPAIR THEM

OK

2.

CHECK WIRE HARNESS (ECU - BODY GROUND)
NG

REPAIR OR REPLACE HARNESS AND CONNECTOR

OK

3.

CHECK POWER SEAT CONTROL ECU (B VOLTAGE)

(a) Without disconnecting the power seat control ECU's connector, measure the voltage between terminal B of the ECU connector and body ground.

Standard voltage:

10 to 14 V
NG

REPAIR OR REPLACE HARNESS AND CONNECTOR

OK

PROCEED TO NEXT CIRCUIT INSPECTION SHOWN ON PROBLEM SYMPTOMS TABLE