Technical Service Bulletin T-SB-0144-14 — 2014 TOYOTA SEQUOIA
ENGINE AND ENGINE COOLING
Bulletin Details
| TSB ID | T-SB-0144-14 |
| Manufacturer | |
| Vehicle | 2014 TOYOTA SEQUOIA |
| Component | ENGINE AND ENGINE COOLING |
| Communication Date |
Bulletin Summary
TSB: Some 2014 - 2015 model year Sequoia and Tundra vehicles equipped with 3UR engines may exhibit a MIL "ON" condition with the following Diagnostic Trouble Codes (DTCs): ? P2440: Secondary Air Injection System Switching Valve Stuck Open Bank 1 ? P2442: Secondary Air Injection System Switching Valve Stuck Open Bank 2 This condition may be caused by debris/ice in the air switching valve assembly. The Engine Control Module/ECM (SAE term: Powertrain Control Module/PCM) logic has been changed to reduce the possibility of this condition occurring.
About Technical Service Bulletins
A Technical Service Bulletin (TSB) is a document issued by a vehicle manufacturer to its dealers, describing a known issue with a specific vehicle or set of vehicles and the recommended procedure to fix it. Unlike recalls, TSBs are not mandatory and are typically only performed if an owner reports the related issue. However, TSBs can be an indicator of common problems with a vehicle.
Other TSBs for the 2014 TOYOTA SEQUOIA
T-SB-0012-21
SEATS
T-SB-0166-19
ENGINE
T-SB-0035-16
EQUIPMENT
F0A_Dealer Daily
EQUIPMENT
F0A_TI_Sequoia_P
ENGINE AND ENGINE COOLING
T-SB-0160-14 Rev
ELECTRICAL SYSTEM
F0A_LSC_Region L
FUEL SYSTEM, OTHER
F0A_LSC_Dealer D
FUEL SYSTEM, OTHER
T-SB-0160-14
ELECTRICAL SYSTEM
T-SB-0144-14
ENGINE