FixVault

How To Proceed With Troubleshooting

WARNING: This page is about a different car, the 2005 Lexus RX 330. However, it is still accessible from the selected car via links, so may be relevant.
  1. Vehicle Brought to Workshop 
    1. Go to next step.
  2. See  CUSTOMER PROBLEM ANALYSIS CHECK  
    1. Go to next step.
  3. Check multiplex communication system (See  HOW TO PROCEED WITH TROUBLESHOOTING  ) 
    1. Check the DTC output.
    1. DTC is output (Proceed to "BODY MULTIPLEX COMMUNICATION SYSTEM") 
    2. DTC is not output (Go to step 4) 
  4. Problem Symptom Confirmation (See  CUSTOMER PROBLEM ANALYSIS CHECK   ) 
    1. Go to next step.
  5. Circuit Inspection (See  MALFUNCTION IN SPEEDOMETER   -  INSPECTION PROCEDURE   ) 
    1. Go to next step.
  6. Repair or Replace 
    1. Go to next step.
  7. Confirmation Test 
    1. Go to next step.
  8. End