Canada - Fuel System - MIL ON/DTC's P0455/P0441/P0456
BulletinTSB2787
Issue Date
March 17, 2010
Title
MIL "ON" DTC P0455 & P0441 OR P0456
Component
FUEL
Models
'05-'09 GX470
INTRODUCTION:
Some 2005 - 2009 model year GX470 vehicles may exhibit a MIL "ON" condition with one or more of the following DTCs: P0455 & P0441 or P0456. Use the repair procedure below to address this condition.
APPLICABILITY:
WARRANTY INFORMATION:
PARTS INFORMATION:
REQUIRED TOOLS & EQUIPMENT:
REPAIR PROCEDURE:
1. Using ETAS Techstream, clear the stored DTCs.
2. Using ETAS Techstream, perform the Automatic EVAP System Check.
System Select > Engine and ECT > Utility > EVAP System
If P0455 and P0441 or P0456 set, go to step 3.
HINT
If DTC P0441 sets ALONE, this TSB does NOT apply - Refer to the Repair Manual for further diagnosis.
NOTE
If the Automatic EVAP System Check fails to run, perform the following:
- Turn the ignition key OFF.
- Turn ETAS Techstream OFF.
- Turn the ignition key ON and ETAS Techstream ON and restart the Automatic EVAP System Check.
3. Inspect the fuel cap.
Does it tighten properly?
- YES - Proceed to step 4.
- NO - Replace the fuel cap, then proceed to step 5.
4. Inspect the EVAP system for the leak source.
Refer to the Repair Manual within E-TAS / TIS library:
- Division: Lexus
- Model: GX470
- Year: 2005
- Service Category: Engine/Hybrid System
- Section: Engine Control
- Keyword: SFI System (2UZ-FE): EVAP Inspection Procedure
- Division: Lexus
- Model: GX470
- Year: 2006/ 2007/ 2008/ 2009
- Service Category: Engine/Hybrid System
- Section: Engine Control
- Keyword: 2UZ-FE Engine Control System: SFI System: EVAP System
Was the leak source isolated at the fuel cap to filler pipe sealing area?
- YES - Replace the fuel cap, then proceed to step 5.
- NO - This TSB does NOT apply - Refer to the Repair Manual for further diagnosis.
5. Clear DTCs.
6. Perform the Automatic EVAP System Check and verify NO pending DTCs set.
System Select > Engine and ECT > Utility > EVAP System
NOTE:
Issue of this Technical Service Bulletin is to ensure that proper repair information is available. IT DOES NOT CONSTITUTE AN AUTHORIZATION FOR REPAIR. Normal provisions of the formal warranty policy, as applicable, will apply.