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Home >> Toyota >> 2001 >> Sienna CE >> Repair and Diagnosis >> External Pages >> Different car >> Section 476 (LEXUS Park Assist System - Diagnosis) >> Circuit Inspection >> DTC B2231 Front Left Side Sensor Malfunction >> Inspection Procedure

Inspection Procedure

WARNING: This page is about a different car, the 2003 Lexus LS 430. However, it is still accessible from the selected car via links, so may be relevant.
  1. Check the clearance sonar sensor (See  INSPECTION  ) 
    1. NG : Replace clearance sonar sensor. 
    2. OK : Go to next step. 
  2. Check wire harness and connector between clearance sonar sensor and clearance sonar ECU (See  HOW TO USE THE DIAGNOSTIC CHART AND INSPECTION PROCEDURE  ). 
    1. NG : Repair or replace wire harness or connector. 
    2. OK : Replace clearance sonar ECU (See  HOW TO USE THE DIAGNOSTIC CHART AND INSPECTION PROCEDURE  ).