FixVault

Problem Symptoms Table

WARNING: This page is about a different car, the 2004 Lexus LS 430. However, it is still accessible from the selected car via links, so may be relevant.

If a normal system code is displayed during the DTC check but the problem still occurs, check the circuits for each problem symptom in the order given in the figure Fig 1 below and proceed to the relevant troubleshooting ?

HINT:

Inspect the fuse and relay before confirming the suspected area in the figure Fig 1 below.

Inspect each malfunction circuit in numerical order for the corresponding symptom.

If the malfunction still exists even after checking and confirming that all the circuits are normal, replace the ECU.

  1. HEADLAMP SYSTEM 
    Fig 1: Headlamp System Symptom Chart
    G01412306Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
  2. TAILLAMP SYSTEM 
    Fig 2: Tail lamp System Symptom Chart (1 Of 2)
    G01412307Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    Fig 3: Tail lamp System Symptom Chart (2 Of 2)
    G01412308Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
  3. AUTOMATIC LIGHT CONTROL SYSTEM 
    Fig 4: Automatic Light Control System Symptom Chart
    G01412309Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
  4. LIGHT AUTO TURN OFF SYSTEM 
    Fig 5: Light Auto Turn Off System Symptom Chart
    G01412310Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
  5. FOG LAMP SYSTEM 
    Fig 6: Fog Lamp System Symptom Chart
    G01412311Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
  6. TURN SIGNAL AND HAZARD WARNING SYSTEM 
    Fig 7: Turn Signal And Hazard Warning System Symptom Chart
    G01412312Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
  7. STOP LAMP SYSTEM 
    Fig 8: Stop Lamp System Symptom Chart
    G01412313Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
  8. BACK UP LAMP SYSTEM 
    Fig 9: Back-Up Lamp System Symptom Chart
    G01412314Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
  9. ILLUMINATED ENTRY SYSTEM 
    Fig 10: Illuminated Entry System Symptom Chart
    G01412315Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
  10. STEP ILLUMINATION SYSTEM 
    Fig 11: Step Illumination System Symptom Chart
    G01412316Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
  11. BUCKLE ILLUMINATION SYSTEM 
    Fig 12: Buckle Illumination System Symptom Chart
    G01412317Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
  12. INSTRUMENT PANEL ILLUMINATION SYSTEM 
    Fig 13: Instrument Panel Illumination System Symptom Chart
    G01412318Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
  13. LUGGAGE ROOM LIGHT SYSTEM 
    Fig 14: Luggage Room Light System Symptom Chart
    G01412319Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
  14. AFS 
    Fig 15: AFS System Symptom Chart
    G01412320Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
  15. OTHERS 
    Fig 16: Others System Symptom Chart
    G01412321Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002