Canada - Hybrid System - MIL ON/DTC P0A7A

Bulletin
TSB2267

Issue Date
2005-07-25

Market
Canada

Title
FALSE M.I.L. "ON" P0A7A, INFORMATION 325

Component
ENGINE ELECTRICAL

Models
'04 - '05 Prius

INTRODUCTION:
Some 2004 or 2005 model year Prius vehicles may experience a false M.I.L. "ON" condition with DTC P0A7A, information code 325 (Generator Inverter Performance). Under some circumstances, this may be due to the Hybrid Vehicle Control ECU setting a false M.I.L. "ON" with no problem found. The Hybrid Vehicle Control ECU has been improved to address this condition.

NOTE:
Inverter replacement is NOT required in this circumstance.

APPLICABLE VEHICLES:
- 2004 model year Prius vehicles.
- 2005 model year Prius vehicles produced BEFORE the Production Change Effective VINs shown below.






PRODUCTION CHANGE INFORMATION:






WARRANTY INFORMATION:






PARTS INFORMATION:






REQUIRED SSTs:

REPAIR PROCEDURE:






1. Compare the parameters in the freeze frame and information code data to the table and proceed to step 2. If any of the items are outside the specified range, then proceed with normal diagnosis and/or TSB No. 2245, "M.I.L. "ON" P0A60, P0A63, P0A72, P0A78, or P0A7A."
2. If the information contained in the freeze frame and information code data matches the parameters specified in the table above, remove and replace the Hybrid Vehicle Control ECU. Refer to the ETAS: 2004 or 2005 model year Prius Repair Manual: Hybrid Control System: Hybrid Vehicle Control ECU: Replacement.

NOTE:
Issue of this Technical Service Bulletin is to ensure that proper repair information is available. IT DOES NOT CONSTITUTE AN AUTHORIZATION FOR REPAIR. Normal provisions of the formal warranty policy, as applicable, will apply.