Inspection Procedure

WARNING: This page is about a different car, the 2004 Lexus LX 470. However, it is still accessible from the selected car via links, so may be relevant.

Check voltage between terminal VCC of Power Seat Control ECU connector and body ground.
PREPARATION:

Remove Power Seat Control ECU with connectors being connected.

CHECK:

While operating the Power Seat Control Switch and moving the seat, check voltage between terminal VCC of Power Seat Control ECU connector and body ground.

OK:
1. Voltage: 7.2 - 8.8 V
Fig 1: Checking Voltage Between Terminal VCC Of Power Seat Control ECU Connector And Body Ground
Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
1. OK: Proceed to next circuit inspection shown on problem symptom table (See PROBLEM SYMPTOMS TABLE ).
2. NG: Go to Next Step
Check harness and connector connected to terminal VCC of Power Seat Control ECU (See HOW TO USE THE DIAGNOSTIC CHART AND INSPECTION PROCEDURE ).
1. NG: Repair or replace harness or connector.
2. OK: Check and replace Power Seat Control ECU (See HOW TO USE THE DIAGNOSTIC CHART AND INSPECTION PROCEDURE ).