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Home >> Lexus >> 2004 >> LS 430 >> Repair and Diagnosis >> Restraints >> Restraints Control Systems >> Seat Belt System >> Seat Belt Tension Reducer System >> Problem Symptoms Table
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Problem Symptoms Table

PROBLEM SYMPTOMS

Symptom Suspected Area See
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
SEAT BELT TENSION REDUCER SYSTEM 
SEAT BELT TENSION REDUCER SYSTEM 
INSPECTION 
INSPECTION 
-
Passenger side:
Tension reducer system does not operate
  1. P-IG fuse
  2. P-IG 1 relay
  3. Front seat inner belt assy RH
  4. Front seat outer belt assy RH
  5. Air bag sensor assy
  6. Wire harness
SEAT BELT TENSION REDUCER SYSTEM 
SEAT BELT TENSION REDUCER SYSTEM 
INSPECTION 
INSPECTION 
TERMINALS OF ECU
-

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 the Multiplex Communication System).