TSRM/MK4 Supra/Repair Manual
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p.123

BAT/Brakes, ABS & TRAC Systems — How to Proceed with Troubleshooting, page 124

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p.125
How to Proceed with Troubleshooting — MK4 Supra Brakes, ABS & TRAC Systems, page 124
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Page text (OCR transcript)
BR–124

BRAKE SYSTEM  –  TRACTION CONTROL SYSTEM (TRAC)

HOW TO PROCEED WITH TROUBLESHOOTING

Perform troubleshooting in accordance with the procedure on the following pages.

Vehicle brought to workshop

Items inside [    ] are titles of pages in this manual,
with the page number in the bottom portion. See the
pages for detailed explanation.

1  Customer Problem Analysis
   P. BR–125

2  Check and Clear Diagnostic Trouble Codes (Precheck)
   I P. BR–126 ~ BR–128

                                    Symptom
                                    does not occur

3  Problem Symptom Confirmation          4  Symptom Simulation
                                             P. BR–24
   Symptom
   occurs

5  Diagnostic Trouble Code Check                    Normal code
   P. BR–126

   Malfunction code

6  Diagnostic Trouble Code Chart     7  Problem Symptoms Chart
   P. BR–128                            P. BR–133

8  Circuit Inspection        9  Sensor Check          Check for Fluid Leakage
   P. BR–134 ~ P. BR–163                              P. BR–165

   Identification of Problem

10  Repair

11  Confirmation Test

End

Step [2] , [5] , [9] , [11] : Diagnostic steps permitting the use
of the TOYOTA hand–held tester.