Emissions/Fuel - MIL ON/Multiple EVAP DTC's Set

T-SB-001 6-12

January 20, 2012

MIL "ON" P043E, P043F, P2401, P2402, & P2419 Due to
Water Intrusion into Charcoal Canister

Service
Category
Engine/Hybrid System

Section
Emission Control

Market
USA





Applicability

Introduction

Some 2007-2011 model year Yaris sedan vehicles may experience a MIL "ON" condition with DTCs P043E, P043F, P2401 P2402 and P2419 present. This can be caused by water or debris entry into the evaporative control system through the fresh air inlet. To address this condition, a fuel pipe protector has been created to help prevent water intrusion into the fuel filler pipe cover.





Parts Information





Required Tools & Equipment





Warranty Information

Repair Procedure

1. Using TIS Techstream check for DTCs P043E P043F P2401 P2402 and P2419.

A. If the above DTCs are present proceed to step 2.

B. If all 5 DTCs are NOT present this TSB does NOT apply continue diagnostics per the Repair Manual.

2. Check for water or debris in the EVAP system by disconnecting the vent hose from the canister pump module.

Is water or debris present in the vent hose?

A. YES - Proceed to step 3.

B. NO - This TSB does NOT apply continue diagnostics per the Repair Manual.

3. Replace the charcoal canister and charcoal canister filter No. 2 as outlined in the Repair Manual.

^ 2007 /2008 / 2009 / 2010 / 2011 Yaris:
Engine/Hybrid System - Emission Control - "Canister Removal"

^ 2007 / 2008 / 2009 / 2010 / 2011 Yaris:
Engine/Hybrid System - Emission Control - "Canister: Installation"

4. Remove fuel tank filler pipe protector and retain fasteners.





5. For 2007 Yaris follow this procedure all other model years proceed to step 7. Inspect the fuel tank filler pipe cover holder for the presence of the drain hole shield that is included with the updated fuel tank filler pipe cover holder as shown in Figures 1 and 2.





6. If drain hole shield is present proceed to step 7.

If drain hole shield is NOT present replace the fuel tank filler pipe cover and cover holder with the updated parts.





7. Replace fuel tank filler pipe protector with updated part. Slide the supplied plastic tie over the fuel tank filler pipe cover holder then reinstall original fasteners.

8. Clear all DTCs using TIS Techstream.

9. Perform the Automatic EVAP System Check and verify that no pending DTCs set.

System > Engine and ECT> Utility> EVAP System Check

NOTE

If the Automatic EVAP System Check fails to run, perform the following:

^ Turn the ignition OFF.

^ Turn TIS Techstream OFF.

^ Turn the ignition ON and TIS Techstream ON and restart the Automatic EVAP System Check.