The P0440 code means that the control module has detected a leak in the Evaporative Emission (EVAP). Loose fuel tank filler cap is the most common cause that triggers the P0440 code.
There is a factory service bulletin for the following Toyota models:
2003–2004 Toyota Corolla
2003–2005 Toyota Matrix
Toyota Factory Service Bulletin OBDII Code P0440 Corolla and Matrix
If P0440 is combined with P0446 and P0441 use this bulletin:
2000-2003 Toyota Solara
2000-2003 Toyota Avalon
2000-2003 Toyota Camry
2001-2003 Toyota Sienna
Toyota Factory Service Bulletin OBDII Code P0440 Solara, Avalon, Camry, Sienna
Check the 'Possible Causes' listed above. Visually inspect the related wiring harness and connectors. Check for damaged components and look for broken, bent, pushed out, or corroded connector pins.
The cost to diagnose the P0440 Toyota code is 1.0 hour of labor. The diagnosis time and labor rates at auto repair shops vary depending on the location, make and model of the vehicle, and even the engine type. Most auto repair shops charge between $75 and $150 per hour.
Malfunction is detected when EVAP control system has a leak, EVAP control system does not operate properly.
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Get the P0440 Toyota code diagnosed by a professional: Find a repair shop in your area