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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Problem symptoms table
If a normal code is displayed during the dtc check but the problem still occurs, check the circuits for each problem symptom in the order given in the table below and proceed to the relevant troubleshooting page. Notice: when replacing skid control ecu, sensor or etc., Turn the ignition swi ...

Floor shift cable transmission control shift (atm)
Replacement 1. Precaution 2. Disconnect battery negative terminal 3. Remove parking brake hole cover sub–assy 4. Remove console panel upper 5. Remove console box carpet 6. Remove console box sub–assy rear 7. Remove air bag sensor assy center 8. Disconnect oxygen sensor connector ...

On–vehicle inspection
1. Check battery electrolyte level Check the electrolyte quantity of each cell (maintenance–free battery).  If under the lower level, replace the battery (or add distilled water if possible) and check the charging system.  check the electrolyte quantity of each cell ...