FixVault

Inspection Procedure

  1. Check voltage between terminal PVCC of Seat Position Control ECU connector and body ground. 

    PREPARATION: 

    Remove Seat Position Control ECU with connectors still connected.

    CHECK: 

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

    OK: 

    Voltage: 7.2-8.8 V 

    Fig 1: Checking Voltage Between Terminal PVCC Of Seat Position Control ECU Connector And Body Ground
    G02836248Courtesy 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. 
  2. Check harness and connector connected to terminal PVCC of Seat Position Control ECU (See  HOW TO TROUBLESHOOT ECU CONTROLLED SYSTEMS  ). 

    CHECK: 

    Check for open or short in the harness and check connectors for the position sensor power source circuit outlined in the diagram with a thick line (-).

    1. NG: Repair or replace harness or connector. 
    2. OK: Check and replace Seat Position Control ECU.