Canada - Fuel System - MIL ON DTC's P0455/P0441/P0456

Bulletin
TSB2755

Issue Date
December 22, 2009

Title
MIL "ON" DTC P0455 AND P0441 OR P0456

Component
FUEL

Models
'06 GS300; GS430

INTRODUCTION:

Some 2006 model year GS300 and GS430 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: GS300
- Year: 2006
- Service Category: Engine/Hybrid System
- Section: Engine Control
- Keyword: 3GR-FSE Engine Control System: SFI System: EVAP System

- Division: Lexus
- Model: GS430
- Year: 2006
- Service Category: Engine/Hybrid System
- Section: Engine Control
- Keyword: 3UZ-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.