Engine Controls, Emissions - MIL ON, DTC P0418/P2445 Set

T-SB-0024-13

February 8, 2013

MIL "ON" DTC P0418 and/or P2445

Service Category
Engine/Hybrid System

Section
Engine Control

Market
USA





Applicability

Introduction

Some 2012 - 2013 model year Sequoia and Tundra vehicles equipped with 3UR-FE or 3UR-FBE engines may exhibit a MIL "ON" condition with Diagnostic Trouble Code (DTC) P0418 and/or P2445 present. The Engine Control Module/ECM (SAE term: Powertrain Control Module/PCM) logic has been modified to reduce the possibility of this condition occurring. Please follow the repair procedure below to address this condition.








Warranty Information





Calibration Information





Parts Information





Required Tools & Equipment

Repair Procedure

1. Using Techstream check for stored DTCs. Confirm one of the following DTCs are present:

^ P0418 - Secondary Air Injection System Control "A" Circuit

^ P2445 - Secondary Air Injection Pump Stuck OFF Bank 1

If either of these DTCs are present, reprogram the Engine Control Module (ECM/PCM) and replace the Bank 1 Air Pump Assembly.





2. Check for the Authorized Modifications Label affixed to the vehicle in the location shown in Figure 1. Confirm if the ECM (PCM) calibration has been updated. If the calibration ID listed is NOT the latest ECM (PCM) calibration - go to step 3.

3. Flash reprogram the ECM (PCM).

NOTE

^ The GR8 Battery Diagnostic Station MUST be used in Power Supply Mode to maintain battery voltage at 13.5 volts while flash reprogramming the vehicle.

^ For details on how to use the GR8 Battery Diagnostic Station, refer to the GR8 Instruction Manual located on the Technical Information System (TIS), Diagnostics - Battery.

Follow the procedures outlined in Service Bulletin No. T-SB-0012-13, "Techstream ECU Flash Reprogramming Procedure", and flash the ECM (PCM) with the NEW calibration file update.

4. Install the Authorized Modifications Label.

A. Using a permanent marker enter the following information on the label:

^ ECM part number [Refer to the Parts Information section for the CURRENT PART NUMBER]

^ Calibration ID(s) [Refer to the Calibration Identification Chart for the NEW CALIBRATION ID]

^ Dealer Code

^ Repair Date

^ Change Authority [This SB number]

B. Affix the Authorized Modifications Label to the vehicle at the location shown in Figure 1. The Authorized Modifications Label is available through the MDC P/N 00451-00001-LBL.

5. Replace the Bank 1 Air Pump Assembly.








Refer to the Technical Information System (TIS) applicable model and model year Repair Manual:

6. Test drive the vehicle to confirm proper vehicle operation.

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