Canada - Emissions - MIL ON/DTC P2420 Set

Bulletin
L-TCI-3042

Issue Date
September 28, 2011

Title:
MIL "ON" DTC P2420

Service Category
Vehicle Interior

Section
Meter/Gauge/Display

Market
Canada






APPLICABILITY:

INTRODUCTION:
Some 2009 - 2010 model year Lexus vehicles may exhibit a MIL "ON" condition with Diagnostic Trouble Code (DTC) P2420 (Evaporative Emission System Switching Valve Control Circuit High) present. The charcoal canister has been updated to address this condition.

PRODUCTION CHANGE INFORMATION:










This TSB applies to vehicles produced BEFORE the Production Change Effective VIN shown.






WARRANTY INFORMATION:






REQUIRED TOOLS & EQUIPMENT:






PARTS INFORMATION:

REPAIR PROCEDURE:
1. Using ETAS Techstream, check for Diagnostic Trouble Codes (DTCs).
2. Are codes other than P2420 present?
- YES - Diagnose other DTC(s) first.
- NO - Continue to step 3.






3. Inspect VSV for proper power and ground circuits.

Perform the following checks with the Canister Pump Module Connector connected and back probe the pins to obtain the readings.
A. Check for voltage between Pin 9 (VLVB) and Chassis Ground. With IG ON, voltage should read between 9 V and 14 V.
- YES - Proceed to next step (3B).
- NO - This TSB does NOT apply - inspect and repair wiring.

B. Check for voltage between pin 8 (VGND) and Chassis Ground. With IG ON, voltage should read between 9 V and 14 V.
- YES - Proceed to next step (3C).
- NO - Vent Valve is open - proceed to step 4.

C. Using ETAS Techstream, activate the VSV and check voltage between pin 8 (VGND) and Chassis Ground.
Powertrain > Engine > Active Test > Activate the VSV for Vent Valve
- 9 V - 14 V present - This TSB does NOT apply - inspect and repair wiring.
- < 1 V present - Proceed to step 4.

4. Replace the Charcoal Canister Assembly.
Refer to TIS, applicable model and model year Repair Manual:
- 2010 ES350:
Engine/Hybrid System - Emission Control - "2GR-FE Emission Control: Canister: Removal / Installation"

- 2009 GS350:
Engine/Hybrid System - Emission Control - "2GR-FSE Emission Control: Canister: Removal / Installation"

- 2010 GS350:
Engine/Hybrid System - Emission Control - "2GR-FSE Emission Control: Canister: Removal / Installation"

- 2010 GS450h:
Engine/Hybrid System - Emission Control - "2GR-FSE Emission Control: Canister: Removal / Installation"

- 2010 GS460:
Engine/Hybrid System - Emission Control - "1UR-FSE Emission Control: Canister: Removal / Installation"

- 2010 HS250h:
Engine/Hybrid System - Emission Control - "2AZ-FXE Emission Control: Canister: Removal / Installation"

- 2010 IS250:
Engine/Hybrid System - Emission Control - "4GR-FSE Emission Control: Canister: Removal / Installation"

- 2010 IS350:
Engine/Hybrid System - Emission Control - "2GR-FSE Emission Control: Canister: Removal / Installation"

- 2010 IS250C:
Engine/Hybrid System - Emission Control - "4GR-FSE Emission Control: Canister: Removal / Installation"

- 2010 IS350C:
Engine/Hybrid System - Emission Control - "2GR-FSE Emission Control: Canister: Removal / Installation"

- 2010 IS-F:
Engine/Hybrid System - Emission Control - "2UR-GSE Emission Control: Canister: Removal / Installation"

- 2009 LS460/460L:
Engine/Hybrid System - Emission Control - "1UR-FSE Emission Control: Canister: Removal / Installation"

- 2010 LX570:
Engine/Hybrid System - Emission Control - "3UR-FE Emission Control: Canister: Removal / Installation"

- 2010 RX350:
Engine/Hybrid System - Emission Control - "2GR-FE Emission Control: Canister: Removal / Installation"

- 2010 RX450h:
Engine/Hybrid System - Emission Control - "2GR-FXE Emission Control: Canister: Removal / Installation"

- 2010 SC430:
Engine/Hybrid System - Emission Control - "3UZ-FE Emission Control: Canister: Removal / Installation"


5. Clear all DTCs using ETAS Techstream.
6. 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 ETAS Techstream OFF.
- Turn the ignition ON and ETAS Techstream ON and restart the Automatic EVAP System Check.

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.