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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Content of driving information
■ Display items Speedometer display/Driving range Fuel economy Eco Driving Indicator/Driving range ■ Speedometer display/Driving range Speedometer display Driving range Displays driving range with remaining fuel. Use the displayed values as a reference only. This distance is computed ...

Turning on light switch does not light up night time illumination of radio receiver
Wiring diagram Inspection procedure 1 Inspect radio receiver assy(ill+, ill–) Check that the voltage between terminals at each condition, as shown in the chart. Standard: Repair or replace harness or connector ...

How to proceed with troubleshooting
1 Vehicle brought to workshop 2 Customer problem analysis 3 Check and clear dtcs and freeze frame data 4 Problem symptom confirmation Symptom does not occur: go to step 5 Symptom occurs: go to step 6 5 Symptom simulation 6 Dtc check There is no output: go to step 7 There is outp ...