Toyota Corolla (E120): Stop light switch circuit

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Circuit description
The rear heated oxygen sensor is used to monitor oxygen concentration in the exhaust gas. For optimum catalytic converter operation, the air fuel mixture must be maintained near the ideal ”stoichiometric” ratio. The heated oxygen sensor output voltage changes suddenly in the vicinity of ...

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 ...

On–vehicle inspection
1. Inspect sliding roof function  check the slide opening operation (manual).  Turn the ignition switch on.  When keeping operating the sliding roof switch to the open side, check that the roof glass will slide and be fully opened.  check the slide closing ...