Electric Vehicle - ECU Update for Charging Sys. Improvements

T-SB-0050-13

March 25, 2013

ECU Software Update: Charging System Improvement

Service Category
Engine/Hybrid System

Section
Hybrid/Battery Control System

Market
USA





Applicability

Introduction

The EV Gateway Control ECU logic has been updated to improve vehicle operation and charging timer operation. Use the following procedure to reprogram the ECU.





Warranty Information





Parts Information





Calibration Information





Required Tools & Equipment

Repair Procedure





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

2. Flash reprogram the EV Gateway Control ECU.

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 - Tools & Equipment - Battery Diagnostics.

Follow the procedures outlined in Service Bulletin No.T-SB-0043013, "RAV4 EV ECU Flash Reprogramming Procedure", and flash reprogram the ECU with the NEW calibration file update.

3. Install the Authorized Modifications Label.

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

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

^ Calibration ID(s) [Refer to the Calibration Information 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.

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

© 2013 Toyota Motor Sales, USA