Toyota Corolla (E120): Diagnosis circuit

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Unlocking and locking the doors from the inside
◆ Door lock switches 1 Locks all the doors 2 Unlocks all the doors ◆ Inside lock buttons 1 Locks the door 2 Unlocks the door The front doors can be opened by pulling the inside handle even if the lock buttons are in the lock position. ...

Inspection procedure
1 Check side squib(lh) circuit(airbag sensor assy center – front seat airbag assy lh) Disconnect the negative (–) terminal cable from the battery, and wait at least for 90 seconds.  disconnect the connectors between the airbag sensor assy center and the front seat airbag assy ...

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 ...