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Home >> Toyota >> 2003 >> Matrix Base, FWD, Standard >> Repair and Diagnosis >> Brakes >> Traction Control >> Abs With EBD System - Diagnostics >> How To Proceed With Troubleshooting

How To Proceed With Troubleshooting

  1. Vehicle Brought to Workshop 
  2. Customer Problem Analysis (See  CUSTOMER PROBLEM ANALYSIS CHECK   ) 
  3. Check and Clear DTCs (See  PRE-CHECK   ) 
  4. Problem Symptom Confirmation 
    1. Symptom does not occur: Go to   5 
    2. Symptom occur: Go to   6 
  5. Symptom Simulation 
  6. DTC Check (See  PRE-CHECK   ) 
    1. There is no output: Go to   7 
    2. There is output: Go to   8 
  7. Problem Symptoms Table (See  PROBLEM SYMPTOMS TABLE   ) 
    1. Check for fluid leakage and Go to   10 
  8. DTC Chart (See  DIAGNOSTIC TROUBLE CODE CHART   ) 
  9. Circuit Inspection (See  DTC C0200/31: RIGHT FRONT SPEED SENSOR CIRCUIT, DTC C0205/32: LEFT FRONT SPEED SENSOR CIRCUIT, DTC C1235/35: FOREIGN MATTER IS ATTACHED ON TIP OF RIGHT FRONT SENSOR, DTC C1236/36: FOREIGN MATTER IS ATTACHED ON TIP OF LEFT FRONT SENSOR   ,  TS Terminal Circuit   ) 
    NOTE: When 2 or more DTC's are recorded, and the problem is not identified, perform circuit inspection of the other DTC's.
  10. Identification of Problem 
  11. Repair 
  12. Confirmation Test 
    1. End 
    NOTE: Step 3, 6, 9, 12:

    Diagnostic steps permitting the use of the hand-held tester.

    Fail safe function:

    When a failure occurs in the ABS system, the ABS warning light is lit and the ABS operation is prohibited. In addition to this, when the failure which disables the EBD operation occurs, the brake warning light is lit as well and the EBD operation is prohibited.