Canada - Emissions - MIL ON/DTCs P0418/P0419/P2441-P2447
Bulletin
T-TCI-3632
Issue Date
December 5, 2011
Market
Canada
Title
SECONDARY AIR INJECTION SYSTEM - WATER INTRUSION: MIL "ON" DTC P0418, P0419, AND/OR P244#
Service Category
Engine/Hybrid System
Section
Engine Control
Market
Canada
APPLICABILITY:
TSB SUPERSESSION NOTICE
The information contained in this TSB supersedes TSB No. T-TCI-3079 and T-TCI-3302.
- Applicability has been updated to include 2009 - 2011 model year Sequoia and Tundra vehicles.
- The Introduction, Parts Information and Repair Procedure have been updated.
- The air pump inlet has been updated to prevent water intrusion.
TSB Nos. T-TCI-3079 and T-TCI-3302 are Obsolete and any printed versions should be discarded. Be sure to review the entire content of this service bulletin before proceeding.
INTRODUCTION:
Some 2008 - 2011 model year Sequoia and 2007 - 2011 model year Tundra vehicles may exhibit a MIL "ON" condition with the following Diagnostic Trouble Codes (DTCs):
- P0418/P0419: Secondary Air Injection System Control "A/B" Circuit
- P2440/P2442: Secondary Air Injection System Switching Valve Stuck Open Bank 1/Bank 2
- P2441/P2443: Secondary Air Injection System Switching Valve Stuck Closed Bank 1/Bank 2
- P2445/P2447: Secondary Air Injection System Pump Stuck Off Bank 1/Bank 2
This condition may be caused by water intrusion into the air injection pump assemblies. Use the following procedure to address this condition.
REQUIRED TOOLS & EQUIPMENT:
NOTE
Additional Techstream or Techstream LITE units may be ordered by completing the order form on ETAS (Tools > Tools and Equipment > Order Form) and faxing it to (416) 431-8342.
WARRANTY INFORMATION:
PARTS INFORMATION:
REPAIR PROCEDURE:
1. Using ETAS Techstream, check if DTCs P0418, P0419, P2440, P2441, P2442, P2443, P2445, and/or P2447 are present.
2. Using ETAS Techstream, perform the manual Air Injection Active Test (options 1 and 2) to verify if the signal from the air injection control driver is reaching the air pumps.
The pumps should be heard turning on at this point and there should be battery voltage on pin 2 of the pumps during this test. If there is NO voltage, refer to TSB No. T-TCI-2989, "Air Injection Control Driver" for control driver diagnostic procedures.
3. If during the test, voltage is present at the pump and the pump is NOT running, or the Air Pressure (gauge) value did NOT increase from 0 to 1 psi on ETAS Techstream with the pump running, remove the air pump assemblies for inspection.
Refer to the Technical Information System (TIS), applicable model and model year Repair Manual:
2008 - 2011 Sequoia:
Engine/Hybrid System - Emission Control - "3UR-FE / 3UR-FBE / 2UZ-FE / 1UR-FE Emission Control: Air Pump: Removal"
- 2008 Sequoia: 3UR-FE / 2UZ-FE (Bank 2)
- 2009 Sequoia: 3UR-FE / 3UR-FBE / 2UZ-FE (Bank 2)
- 2010 Sequoia: 3UR-FE / 3UR-FBE / 1UR-FE
- 2011 Sequoia: 3UR-FE / 3UR-FBE / 1UR-FE
2007 - 2011 Tundra:
Engine/Hybrid System - Emission Control - "3UR-FE / 3UR-FBE / 2UZ-FE / 1GR-FE / 1UR-FE Emission Control: Air Pump: Removal"
- 2007 Tundra: 3UR-FE / 2UZ-FE (Bank 2) / 1GR-FE
- 2008 Tundra: 3UR-FE / 2UZ-FE (Bank 2) / 1GR-FE
- 2009 Tundra: 3UR-FE / 3UR-FBE / 2UZ-FE (Bank 2) / 1GR-FE
- 2010 Tundra: 3UR-FE / 3UR-FBE / 1GR-FE / 1UR-FE
- 2011 Tundra: 3UR-FE / 3UR-FBE / 1GR-FE / 1UR-FE
4. With the pumps removed from the vehicle, verify if there is liquid or evidence that liquid entered the pumps.
- YES - If there is liquid evidence, go to step 5.
- NO - If there is NO evidence of liquid, go to step 7.
5. If liquid evidence is present, replace the air pump inlet and two pump assemblies, and install clamps on the inlet pipe to air pump hose joint as shown below in Figures 1 and 2.
NOTE
ONLY install clamps on vehicles where they are not currently installed. If already present, reuse the currently installed clamps.
Refer to TIS, applicable model and model year Repair Manual:
2008 - 2011 Sequoia:
Engine/Hybrid System - Emission Control - "3UR-FE / 3UR-FBE / 2UZ-FE / 1UR-FE Emission Control: Air Pump: Installation"
- 2008 Sequoia: 3UR-FE / 2UZ-FE (Bank 2)
- 2009 Sequoia: 3UR-FE / 3UR-FBE / 2UZ-FE (Bank 2)
- 2010 Sequoia: 3UR-FE / 3UR-FBE / 1UR-FE
- 2011 Sequoia: 3UR-FE / 3UR-FBE / 1UR-FE
2007 - 2011 Tundra:
Engine/Hybrid System - Emission Control - "3UR-FE / 3UR-FBE / 2UZ-FE / 1GR-FE / 1UR-FE Emission Control: Air Pump: Installation"
- 2007 Tundra: 3UR-FE / 2UZ-FE (Bank 2) / 1GR-FE
- 2008 Tundra: 3UR-FE / 2UZ-FE (Bank 2) / 1GR-FE
- 2009 Tundra: 3UR-FE / 3UR-FBE / 2UZ-FE (Bank 2) / 1GR-FE
- 2010 Tundra: 3UR-FE / 3UR-FBE / 1GR-FE / 1UR-FE
- 2011 Tundra: 3UR-FE / 3UR-FBE / 1GR-FE / 1UR-FE
IMPORTANT
Make sure the clamp orientation is as shown in Figures 2 and 3.
6. In some instances where water may have entered the system, DTCs P2440/P2441/P2442/P2443 may set. Replacement of the emission control valves is necessary to ensure reliability.
Refer to TIS, applicable model and model year Repair Manual to replace the emission control valves:
2008 - 2011 Sequoia:
Engine/Hybrid System - Engine Control - "3UR-FE / 3UR-FBE / 2UZ-FE / 1UR-FE Engine Control System: SFI System: P2440 P2443 Secondary Air Injection System Switching Valve Stuck Bank 1"
- 2008 Sequoia: 3UR-FE / 2UZ-FE
- 2009 Sequoia: 3UR-FE / 3UR-FBE / 2UZ-FE
- 2010 Sequoia: 3UR-FE / 3UR-FBE / 1UR-FE
- 2011 Sequoia: 3UR-FE / 3UR-FBE / 1UR-FE
2007 - 2011 Tundra:
Engine/Hybrid System - Engine Control - "3UR-FE / 2UZ-FE / 1GR-FE / 1UR-FE Engine Control System: SFI System: P2440 P2443 Secondary Air Injection System Switching Valve Stuck Bank 1"
- 2007 Tundra: 3UR-FE / 2UZ-FE / 1GR-FE
- 2008 Tundra: 3UR-FE / 2UZ-FE / 1GR-FE
- 2009 Tundra: 3UR-FE / 3UR-FBE / 2UZ-FE / 1GR-FE
- 2010 Tundra: 3UR-FE / 3UR-FBE / 1GR-FE / 1UR-FE
- 2011 Tundra: 3UR-FE / 3UR-FBE / 1GR-FE / 1UR-FE
7. If there is NO liquid found in the air pump assemblies, or the DTCs are still present after replacement, inspect the air injection system.
Refer to TIS, applicable model and model year Repair Manual:
2008 - 2011 Sequoia:
- P0412/P0415:
Engine/Hybrid System - Engine Control - "3UR-FE / 3UR-FBE / 2UZ-FE / 1UR-FE Engine Control: SFI System: P0412: Secondary Air Injection System Control A Circuit" (P0415: Secondary Air Injection System Switching Valve "B" Circuit)
- 2008 Sequoia: 3UR-FE / 2UZ-FE
- 2009 Sequoia: 3UR-FE / 3UR-FBE / 2UZ-FE
- 2010 Sequoia: 3UR-FE / 3UR-FBE / 1UR-FE
- 2011 Sequoia: 3UR-FE / 3UR-FBE / 1UR-FE
- P0418/P0419:
Engine/Hybrid System - Engine Control - "3UR-FE / 3UR-FBE / 2UZ-FE / 1UR-FE Engine Control: SFI System: P0418: Secondary Air Injection System Control A Circuit" (P0419: Secondary Air Injection System Control "B" Circuit)
- 2008 Sequoia: 3UR-FE / 2UZ-FE
- 2009 Sequoia: 3UR-FE / 3UR-FBE / 2UZ-FE
- 2010 Sequoia: 3UR-FE / 3UR-FBE / 1UR-FE
- 2011 Sequoia: 3UR-FE / 3UR-FBE / 1UR-FE
- P2440 - P2443:
Engine/Hybrid System - Engine Control - "3UR-FE / 3UR-FBE / 2UZ-FE / 1UR-FE Engine Control: SFI System: P2440 P2443 Secondary Air Injection System Switching Valve Stuck Bank 1"
- 2008 Sequoia: 3UR-FE / 2UZ-FE
- 2009 Sequoia: 3UR-FE / 3UR-FBE / 2UZ-FE
- 2010 Sequoia: 3UR-FE / 3UR-FBE / 1UR-FE
- 2011 Sequoia: 3UR-FE / 3UR-FBE / 1UR-FE
- P2445/P2447:
Engine/Hybrid System - Engine Control - "3UR-FE / 3UR-FBE / 2UZ-FE / 1UR-FE Engine Control: SFI System: P2444: Secondary Air Injection System Pump Stuck On Bank 1" (P2445: Secondary Air Injection System Pump Stuck Off Bank 1, P2447: Secondary Air Injection System Pump Stuck Off Bank 2)
- 2008 Sequoia: 3UR-FE / 2UZ-FE
- 2009 Sequoia: 3UR-FE / 3UR-FBE / 2UZ-FE
- 2010 Sequoia: 3UR-FE / 3UR-FBE / 1UR-FE
- 2011 Sequoia: 3UR-FE / 3UR-FBE / 1UR-FE
2007 - 2011 Tundra:
- P0412/P0415:
Engine/Hybrid System - Engine Control - "3UR-FE / 3UR-FBE / 2UZ-FE / 1GR-FE / 1UR-FE Engine Control System: SFI System: P0412: Secondary Air Injection System Switching Valve A Circuit" (P0415: Secondary Air Injection System Switching Valve "B" Circuit)
- 2007 Tundra: 3UR-FE / 2UZ-FE / 1GR-FE
- 2008 Tundra: 3UR-FE / 2UZ-FE / 1GR-FE
- 2009 Tundra: 3UR-FE / 3UR-FBE / 2UZ-FE / 1GR-FE
- 2010 Tundra: 3UR-FE / 3UR-FBE / 1GR-FE / 1UR-FE
- 2011 Tundra: 3UR-FE / 3UR-FBE / 1GR-FE / 1UR-FE
- P0418/P0419:
Engine/Hybrid System - Engine Control - "3UR-FE / 2UZ-FE / 1GR-FE / 1UR-FE Engine Control System: SFI System: P0418: Secondary Air Injection System Control A Circuit" (P0419: Secondary Air Injection System Control "B" Circuit)
- 2007 Tundra: 3UR-FE / 2UZ-FE / 1GR-FE
- 2008 Tundra: 3UR-FE / 2UZ-FE / 1GR-FE
- 2009 Tundra: 3UR-FE / 3UR-FBE / 2UZ-FE / 1GR-FE
- 2010 Tundra: 3UR-FE / 3UR-FBE / 1GR-FE / 1UR-FE
- 2011 Tundra: 3UR-FE / 3UR-FBE / 1GR-FE / 1UR-FE
- P2440 - P2443:
Engine/Hybrid System - Engine Control - "3UR-FE / 3UR-FBE / 2UZ-FE / 1GR-FE / 1UR-FE Engine Control System: SFI System: P2440 P2443 Secondary Air Injection System Switching Valve Stuck Bank 1"
- 2007 Tundra: 3UR-FE / 2UZ-FE / 1GR-FE
- 2008 Tundra: 3UR-FE / 2UZ-FE / 1GR-FE
- 2009 Tundra: 3UR-FE / 3UR-FBE / 2UZ-FE / 1GR-FE
- 2010 Tundra: 3UR-FE / 3UR-FBE / 1GR-FE / 1UR-FE
- 2011 Tundra: 3UR-FE / 3UR-FBE / 1GR-FE / 1UR-FE
- P2445/P2447:
Engine/Hybrid System - Engine Control - "3UR-FE / 2UZ-FE / 1GR-FE / 1UR-FE Engine Control System: SFI System: P2444: Secondary Air Injection System Pump Stuck On Bank 1" (P2445: Secondary Air Injection System Pump Stuck Off Bank 1, P2447: Secondary Air Injection System Pump Stuck Off Bank 2)
- 2007 Tundra: 3UR-FE / 2UZ-FE / 1GR-FE
- 2008 Tundra: 3UR-FE / 2UZ-FE / 1GR-FE
- 2009 Tundra: 3UR-FE / 3UR-FBE / 2UZ-FE / 1GR-FE
- 2010 Tundra: 3UR-FE / 3UR-FBE / 1GR-FE / 1UR-FE
- 2011 Tundra: 3UR-FE / 3UR-FBE / 1GR-FE / 1UR-FE
8. Clear the DTC(s) and road test the vehicle to confirm the condition has been corrected.
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.