Canada - Engine Control - MIL ON DTC P1423 Set
BulletinTSB2723
Issue Date
November 17, 2009
Title
MIL "ON" CODE P1423 - FUEL TANK GROSS LEAK
Component
BODY COMPONENTS
Models
'08-'09 LS600h
INTRODUCTION:
Some 2008 - 2009 model year LS 600hL vehicles may exhibit a MIL "ON" condition with Diagnostic Trouble Code (DTC) P1423 - Fuel Tank Gross Leak, or a fuel cap binding upon installation or removal.
Use the following repair procedure to diagnose and repair this condition.
APPLICABILITY:
PRODUCTION CHANGE INFORMATION:
This TSB applies to vehicles produced BEFORE the Production Change Effective VIN shown.
WARRANTY INFORMATION:
PARTS INFORMATION:
REQUIRED TOOLS & EQUIPMENT:
REPAIR PROCEDURE:
1. Using ETAS Techstream, check for stored DTCs.
2. Verify DTC P1423 is present.
NOTE
If there are any codes present other than P1423, this TSB does NOT apply. Refer to the appropriate Repair Manual for diagnosis.
3. Check the fuel cap condition.
Does the fuel cap bind while installing or removing?
- YES - Continue to step 4.
- NO - Refer to the Technical Information System (TIS), applicable model year LS 600h Repair Manual:
Refer to the Repair Manual within E-TAS / TIS library:
- Division: Lexus
- Model: LS600h
- Year: 2008/ 2009
- Service Category: Engine/Hybrid System
- Section: Engine Control
- Keyword: 2UR-FSE Engine Control System: SFI: P1422, P1423: Fuel Tank Small Leak
NOTE
While installing the cap use light pressure and only turn until the fuel cap clicks one time.
4. Replace the fuel cap and fuel neck assembly.
5. After the repair is complete, perform the Automatic EVAP System Check again to confirm there are NO pending DTC(s) and the system is normal.
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.