LEMON Manuals: Even more car manuals for everyone
Home >> Toyota >> 2001 >> Sienna CE >> Repair and Diagnosis >> External Pages >> Different car >> Section 96 (Engine Controls - Self-Diagnostics) >> Diagnostic Tests >> DTC P0451, DTC P0452 Or DTC P0453 >> Diagnosis & Repair

Diagnosis & Repair

WARNING: This page is about a different car, the 2003 Lexus ES 300. However, it is still accessible from the selected car via links, so may be relevant.
  1. Inspect ECM (VC - 32). See Figure, step 22. If not okay, check and replace ECM. If okay, go to step  2.
  2. Inspect ECM (PTNK - 32). See Figure, step 23. If okay, check and replace ECM. If not okay, go to step  3.
  3. Check harness and connector (vapor pressure sensor - ECM). See Figure, step 24. If not okay, repair or replace harness or connector. If okay, replace vapor pressure sensor assembly.
scientia non olet · About LEMON Manuals