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Toyota Corolla Repair Manual: Evaporative emission control system

Toyota Corolla Repair Manual / Diagnostics / Sfi system / Evaporative emission control system

Dtc p0441 evaporative emission control system incorrect purge flow

Dtc p0446 evaporative emission control system vent control circuit

Inspection procedure
Hint: read freeze frame data using the hand-held tester or the obd ii scan tool. Freeze frame data records the engine conditions when a malfunction is detected. When troubleshooting, it is usefu ...

Circuit description
The vapor pressure sensor, vsv for canister closed valve (ccv), vsv for pressure switching valve are used to detect abnormalities in the evaporative emission control system. The ecm decides whet ...

Other materials:

Inspection procedure
1 Check d squib circuit(airbag sensor assy center Ц horn button assy) Disconnect the negative (Ц) terminal cable from the battery, and wait at least for 90 seconds.  disconnect the connectors between the horn button assy and the airbag sensor assy center.  for the orange c ...

Engine oil
With the engine at operating temperature and turned off, check the oil level on the dipstick. ■ Checking the engine oil 1 Park the vehicle on level ground. After warming up the engine and turning it off, wait more than 5 minutes for the oil to drain back into the bottom of the engine. 2 ...

Inspection procedure
1 Inspect transmission wire(s1) Disconnect the transmission wire connector from the transaxle.  measure the resistance according to the value(s) in the table below. Standard: 2 Check harness and connector(transmission wire Ц ecm) Connect the transmission connecto ...

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