Toyota Corolla (E120) 2002–2008 Repair Manual / Introduction / How to troubleshoot ecu controlled systems

Toyota Corolla (E120): How to troubleshoot ecu controlled systems

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How to use this manual
1. Body panel replacement in this manual 2. Symbols 3. Illustration of weld point symbols ...

Inspection procedure
1 Inspect stop lamp switch assy 2 Check harness and connector(stop lamp switch assy – ecm)   Install the stop lamp switch assy.  disconnect the ecm connector.  measure the voltage according to the value(s) in the table below when the brake pedal is depressed and rele ...

How to proceed with troubleshooting
The hand–held tester can be used at step 3, 4, 6, 9. 1 Vehicle brought to workshop 2 Customer problem analysis 3 Connect the obd ii scan tool or hand–held tester to dlc3 4 Check and clear dtc and freeze frame data 5 Visual inspection 6 Setting the check mode diagnosis 7 Proble ...