Hybrid Systems - MIL ON/DTC P0A78/Info Codes 286/287
T-SB-0386-08December 16, 2008
M.I.L. "ON" DTC P0A78 with Information Codes 286, 287
Service Category
Engine/Hybrid System
Section
Hybrid/Battery Control System
Market
USA
Applicability
Introduction
Some customers with 2006 - 2008 model year Highlander HV vehicles may experience a M.I.L. "ON" condition with DTC P0A78 with information codes 286 and/or 287 (Drive Motor A Inverter Performance). The inverter with converter assembly has been improved to address this condition.
NOTE
This TSB applies ONLY if information codes 286 AND/OR 287 are present.
Production Change Information
This TSB applies to vehicles produced BEFORE the Production Change Effective VINs shown.
Warranty Information
^ This repair is covered under the Toyota Hybrid System Warranty. This warranty is in effect for 96 months or 100,000 miles, whichever occurs first, from the vehicle's in-service date.
^ Warranty application is limited to correction of a problem based upon a customer's specific complaint.
Parts Information
Required Tools & Equipment
NOTE
Additional TIS Techstream units may be ordered by calling Approved Dealer Equipment (ADE).
NOTE
Additional SSTs may be ordered by calling SPX/OTC at 1-800-933-8335.
Repair Procedure
Remove and replace the hybrid vehicle inverter with converter assembly.
Refer to the Technical Information System (TIS) applicable model year Highlander HV Repair Manual:
^ 2006 / 2007 / 2008 Highlander HV:
Engine/Hybrid System - Hybrid/Battery Control System - "Hybrid Vehicle Control: Inverter with Converter: Removal"
^ 2006 / 2007 / 2008 Highlander HV:
Engine/Hybrid System - Hybrid/Battery Control System - "Hybrid Vehicle Control: Inverter with Converter: Installation"