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Home >> Toyota >> 2001 >> Sienna CE >> Repair and Diagnosis >> External Pages >> Different car >> Section 190 (Engine Control System Self Diagnostics (1GR-FE)) >> Diagnostic Tests >> DTC P0441, DTC P0442, DTC P0446 & DTC P0456 >> EVAP Leak Check

EVAP Leak Check

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 to Data Link Connector No. 3 (DLC3) at driver's side of instrument panel. See Figure. Turn ignition on and then turn hand-held tester on.
  2. Select ENHANCED OBD II/SYSTEM CHECK/EVAP SYS CHECK (or EVAP LEAK TEST) mode on the hand-held tester.
  3. If any changes do not occur within 1 minute after pressing EVAP LEAK TEST, remove the fuel tank cap, then install the fuel tank cap again. Perform EVAP SYS CHECK (or EVAP LEAK TEST). The display on the hand held tester will indicate either, Scan tool detects a leak on the EVAP system, or Scan tool does not detect a leak on the EVAP system
    NOTE: If a leak is detected during this leak test, or if DTCs P0441, P0442 and P0446 were output simultaneously, conduct a leak test again after repair. Go to DIAGNOSIS & REPAIR . If no leak is found at this time, the EVAP system is recovered to normal. Check for intermittent condition.
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