TSRM/MK4 Supra/Repair Manual
Repair ManualWiring Diagrams
p.162
BE/Body Electrical Systems163 / 203
p.164
HOW TO PROCEED WITH TROUBLESHOOTING — MK4 Supra Body Electrical Systems, page 163
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BE–163 BODY ELECTRICAL SYSTEM – CRUISE CONTROL SYSTEM HOW TO PROCEED WITH TROUBLESHOOTING Perform troubleshooting in accordance with the procedure on the following page. Vehicle brought to Workshop Titles inside[ ] are titles of pages in this manual, with the page number indicated in the bottom por- tion. See the indicated pages for detailed explana- tions. 1 Customer Problem Analysis P. BE–164 2 Check and Clear Diagnostic Trouble Codes (Precheck) P. BE–166 ~ BE–167 3 Problem Symptom Confirmation Symptom does not occur 4 Symptom Simulation P. BE–24 Symptom occur 5 Diagnostic Code Check P. BE–165 ~ BE–167 Normal code Malfunction Code 6 Diagnostic Code Chart P. BE–168 7 Matrix Chart of Problem Symptoms P. BE–170 8 Circuit Inspection 9 Input Signal Check P. BE–171 ~ BE–200 Parts Inspection Identification of Problem Repair 10 Confirmation Test END Step [2], [5], [8], [10]: Diagnostic steps permitting the use of the TOYOTA hand–held tester or TOYOTA break–out–box.