Toyota Supra JZA80

How to proceed with troubleshooting

Carry out troubleshooting in accordance with the procedure on the following page. Here, only the basic procedure is shown. Details are provided in each section, showing the most effective methods for each circuit. Confirm the troubleshooting procedures first for the relevant circuit before beginning troubleshooting of that circuit.

Vehicle Brought to Workshop
Customer Problem Analysis
Symptom Confirmation and Diagnostic Trouble Code Check
Symptom Simulation
Diagnostic Trouble Code Chart
Problem symptoms table
Circuit Inspection or Parts Inspection
Confirmation Test
This guide is based on the book edition Toyota (RM502U, 1997)