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Home >> Toyota >> 2001 >> Sienna CE >> Repair and Diagnosis >> External Pages >> Different car >> Section 125 (Engine Control System Self Diagnostics (2UZ-FE)) >> Diagnostic Tests >> DTC P0441, DTC P0442, DTC P0446 Or DTC P0456: >> EVAP Leak Test

EVAP Leak Test

WARNING: This page is about a different car, the 2003 Toyota 4Runner. However, it is still accessible from the selected car via links, so may be relevant.
  1. Connect hand-held tester or enhanced OBD II scanner to Data Link Connector (DLC3) at driver's side of instrument panel. See Figure.
  2. Select ENHANCED OBD II/SYSTEM CHECK/EVAP SYS CHECK or EVAP LEAK TEST mode on hand-held tester.
  3. If any changes do not occur within one minute after pressing EVAP LEAK TEST, remove and reinstall fuel tank cap, then perform EVAP LEAK TEST again.
  4. If a leak is detected, or if DTCs P0441, P0442 and P0446 are output simultaneously, repeat leak test after repair. If no leak is detected at this time, EVAP system is okay.
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