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Service bulletin T-SB-0110-14

A bulletin is a manufacturer's communication to its dealers, as NHTSA indexes it. The summary is NHTSA's. The document is the manufacturer's: read it at NHTSA. A bulletin is not a recall, and listing a model year does not mean every vehicle of it is concerned.

The communication, as NHTSA indexes it (as of 2026-10-19)
TypeService bulletin
NHTSA id10109557
Published by NHTSA2017-08-01
Manufacturer's numberT-SB-0110-14
Manufacturer's date2014-08-27
NHTSA componentELECTRICAL SYSTEM:SOFTWARE; EQUIPMENT:ELECTRICAL

NHTSA's summary

TSB: Some 2012 ? 2014 model year Tacoma vehicles equipped with 1GR-FE engines may exhibit a MIL "ON" condition for the following Diagnostic Trouble Codes (DTCs): ? P015A - A/F Sensor Delayed Response - Rich to Lean Bank 1 Sensor 1 ? P015B - A/F Sensor Delayed Response - Lean to Rich Bank 1 Sensor 1 ? P015C - A/F Sensor Delayed Response - Rich to Lean Bank 2 Sensor 1 ? P015D - A/F Sensor Delayed Response - Lean to Rich Bank 2 Sensor 1 This condition may be caused by A/F sensor misdetection under certain driving conditions.

The document

The document is the manufacturer's. This site does not hold it. NHTSA files a document at one of these two addresses; we have not asked NHTSA which.

Components

Electrical system, Equipment and accessories, Software

Trouble codes named

P015A, P015B, P015C, P015D

Vehicles listed
TOYOTA TACOMA2012, 2013, 2014

Listing a model year does not mean every vehicle of it is concerned: the document says which.

Other bulletins for the same vehicles and component
T-TT-0392-16 Rev2018-06-11. Service bulletin. TT: Some customers may experience Bluetooth connection issues after updating the Android Operating System to 5.x.x (Lollipop) or later.
T-SB-0163-13 Rev2018-04-23. Service bulletin. TSB: Use the following procedures to check and/or update the software version of Entune/Navigation for Non-HDD Type units.
T-TT-0339-152018-04-23. Service bulletin. TT: Some vehicles may exhibit an error message when trying to perform a radio software update: "Unable to update the software. Please try again later." If the following screen is seen, follow the directions below.
T-TT-0374-152018-04-23. Service bulletin. TT: Since MY 2011, several different update or upgrade USB SSTs have been issued for Toyota audio and navigation systems. Refer to the chart below for a comprehensive list of all current and previously issued USB SSTs and their applicability.
T-TT-0385-162018-04-23. Service bulletin. Tech Tip: This Tech Tip is being provided to bring attention to the new location of the Entune/NAV/Map Update and Upgrade USB Directory. Click on the TIS tab, Diagnostics tab, Telematics tab, and the document is now located under the reference documents sections. This change has occurred to help speed up the updating process of this document.
TTT-0337-15 Rev12018-04-23. Service bulletin. TT: When updating either the navigation or radio firmware, verify the vehicle applicability BEFORE beginning the update.
T-TT-0381-162018-04-23. Service bulletin. Tech Tip: Some customers may experience difficulty programming HomeLink.
TSB-0012-13 Rev22018-04-23. Service bulletin. TSB: Flash reprogramming allows the ECU software to be updated without replacing the ECU. Flash calibration updates for specific vehicle models/ECUs are released as field-fix procedures described in individual Service Bulletins. This bulletin details the Techstream ECU flash reprogramming process and outlines use of the Technical Information System (TIS) and the Calibration Update Wizard (CUW). Flash calibration updates can only be applied to the vehicle/ECU combination for which they are intended. ECUs have internal security that will not allow them to be programmed with another ECU?s information.
T-SB-0160-14 Obs2018-04-23. Service bulletin. TSB: OBSOLETE NOTICE: This bulletin is now obsolete. Please see T-SB-0035-16.
T-SB-0012-132018-04-23. Service bulletin. Flash reprogramming allows the ECU software to be updated without replacing the ECU. Flash calibration updates for specific vehicle models/ECUs are released as field-fix procedures described in individual Service Bulletins. This bulletin details the Techstream ECU flash reprogramming process and outlines use of the TIS and the CUW.