Toyota Corolla (E120): Fuel pump control circuit

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Inspection procedure
Hint: the switch described in this text is a switch for transmitting signals which is built in the door control transmitter. 1 Check wireless door lock control functions Normal 2 Replace transmitter battery with normal one After replacing the transmitter battery with a new or normal o ...

Description
When troubleshooting obd ii vehicles, the only difference from the usual troubleshooting procedure is that you need to connect the vehicle to the obd ii scan tool complying with sae j1978 or the hand–held tester, and read various data output from the vehicle’s ecm. Obd ii regulation ...

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 ...