Inspection Procedure

WARNING: This page is about a different car, the 2005 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: Identifying Connector Terminals VCC Of Power Seat Control ECU
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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 PROCEDURE ).
1. NG: Repair or replace harness or connector.
2. OK: Check and replace Power Seat Control ECU (See PROCEDURE ).