How To Proceed With Troubleshooting

2004 Toyota Matrix XR, FWD, StandardSECTION How To Proceed With Troubleshooting
WARNING: This page is about a different car, the 2002 Lexus SC 430. 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. CUSTOMER PROBLEM ANALYSIS (SEE  CUSTOMER PROBLEM ANALYSIS CHECK  ) 
    1. GO TO NEXT STEP 
  3. CHECK MULTIPLEX COMMUNICATION SYSTEM (See  HOW TO PROCEED WITH TROUBLESHOOTING  ) 
    1. GO TO NEXT STEP 
  4. CHECK AND CLEAR DTC (SEE  PRE-CHECK  ) 
    1. GO TO NEXT STEP 
  5. PROBLEM SYMPTOM CONFIRMATION 
    1. SYMPTOM OCCURS (GO TO STEP   7 ) 
    2. SYMPTOM DOES NOT OCCUR (GO TO STEP 6) 
  6. SYMPTOM SIMULATION 
    1. GO TO NEXT STEP 
  7. DTC CHECK (SEE  PRE-CHECK  ) 
    1. MALFUNCTION CODE (GO TO STEP 8) 
    2. NORMAL CODE (GO TO STEP   9 ) 
  8. DTC CHART (SEE  DIAGNOSTIC TROUBLE CODE CHART  ) 
    1. GO TO STEP   10 
  9. PROBLEM SYMPTOMS TABLE (SEE  PROBLEM SYMPTOMS TABLE  ) 
    1. GO TO NEXT STEP 
  10. CIRCUIT INSPECTION (SEE  ALTHOUGH "POWER" IS PRESSED, NO SOUND IS HEARD (NOTHING IS SHOWN ON DISPLAY)   -  AUTOMATIC SOUND LEVELIZER FUNCTION IS ABNORMAL OPERATION  ) 
    1. GO TO NEXT STEP 
  11. CONFIRMATION TEST 
    1. GO TO NEXT STEP 
    2. END 
RENDER: 1.0x

NO RELATED

Recommended Tools & Savings

Use the Manual With the Right Hardware

Pair factory procedures with proven DIY tools so the instructions are easier to execute.

Affiliate disclosure: We may earn a commission at no extra cost to you.

When to See a Mechanic

Stop DIY work and contact a certified mechanic immediately if any of the following apply:

  • You smell fuel, burning insulation, or see smoke.
  • Brakes feel soft, pull hard to one side, or make grinding noises.
  • The engine overheats, stalls repeatedly, or misfires under load.
  • You are missing required tools, torque specs, or safe lifting equipment.
  • You are not confident in the next step or safety outcome.