LEMON Manuals: Even more car manuals for everyone: 1960-2025
Home >> Lexus >> 2005 >> LS 430 >> Repair and Diagnosis >> Restraints >> Restraints Control Systems >> Seat Belt >> Seat Belt Tension Reducer System >> Problem Symptoms Table
April 5, 2026: LEMON Manuals is launched! Read the announcement.

Problem Symptoms Table

PROBLEM SYMPTOMS TABLE - SEAT BELT TENSION REDUCER SYSTEM

Symptom Suspected Area
Driver side: Tension reducer system does not operate
  1. GAUGE fuse
  2. D-IG1 relay
  3. Front seat inner belt assy LH
  4. Front seat outer belt assy LH
  5. Wire harness
Passenger side: Tension reducer system does not operate
  1. P-IG fuse
  2. P-IG1 relay
  3. Front seat inner belt assy RH
  4. Front seat outer belt assy RH
  5. Air bag sensor assy
  6. Wire harness

HINT:

The seat belt tension reducer system is part of the large-scale multiplex communication system. This system features shared communication wiring that reduces the wiring complexity of the communication lines. The first step in any repair is to confirm the proper operation of the communication system. Proceed with troubleshooting after the communication has been verified (see MULTIPLEX COMMUNICATION SYSTEM ).