Toyota Corolla (E170): Automatic air conditioning system

Air outlets and fan speed are automatically adjusted according to the temperature setting.

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Circuit description
When a misfire occurs in the engine, hydrocarbons (hc) enter the exhaust in high concentrations. If this hc concentration is high enough, there could be an increase in exhaust emissions levels. High concentrations of hc passing through the catalyst also cause to temperature of the catalyst to ...

Dtc check/clear
Notice: if there is no dtc in the normal mode, check the pending fault code using the continuous test results function (mode 7 for sae j1979) on the obd ii scan tool or the hand–held tester. Hand–held tester only: when the diagnosis system is switched from the normal mode to the ...

Inspection procedure
1 Check hazard warning signal switch assy Check the hazard warning switch continuity, as shown in the illustration and table. Standard: 2 Check turn signal flasher assy 3 Check wire harness (tvip ecu turn signal flasher) Disconnect the tvip ecu and turn signal flashe ...