LEMON Manuals: Even more car manuals for everyone: 1960-2025
Home >> Toyota >> 2003 >> Matrix Base, FWD, Automatic >> Repair and Diagnosis (Single Page) >> Accessories & Equipment >> Infotainment >> Navigation System - Diagnostics >> How To Proceed With Troubleshooting
April 5, 2026: LEMON Manuals is launched! Read the announcement.

How To Proceed With Troubleshooting

  1. Vehicle Brought to Workshop 
  2. Customer Problem Analysis (See  CUSTOMER PROBLEM ANALYSIS CHECK   ) 
  3. Problem Symptom Confirmation (See  ELECTRONIC CIRCUIT INSPECTION PROCEDURE  ) 
    1. Symptom does not occur (Go to   4 ) 
    2. Symptom occurs (Go to   5 ) 
  4. Symptom Simulation (See  ELECTRONIC CIRCUIT INSPECTION PROCEDURE  ) 
  5. DTC Check (See  PRE-CHECK   ) 
    1. Normal code (Go to   7 ) 
    2. Malfunction code (Go to   6 ) 
  6. DTC Chart (See  DIAGNOSTIC TROUBLE CODE CHART   ) 

    Go to   8 

  7. Problem Symptoms Table (See  PROBLEM SYMPTOMS TABLE   ) 
  8. Terminal of ECU (See  TERMINALS OF ECU   ) 
  9. Indemnification of Problem 
  10. Repair or Replace 
  11. Confirmation Test 

    End