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This is a summary. If you would like a copy of the actual TSB, use the Private Message system (left column on this page) to contact me. I also have the TSB for the revised steering column design to eliminate the "popping" noise heard/felt while turning at low speeds (and sometimes on stop/start of the vehicle).
Technical Service Bulletin EG029-07 June 6, 2007
ECM CALIBRATION: ENHANCEMENT TO SHIFTING PERFORMANCE & SMOOTHNESS
’06 -- ’07 Avalon
To enhance shifting performance and smoothness during acceleration, the Engine Control Module/ECM (SAE term: Powertrain Control Module/PCM) calibration has been revised. Please use the following procedure to address customer concerns.
Before proceeding, verify the ECM (PCM) calibration has NOT been updated by checking for the Authorized Modifications Label (shown in step 1 of the Repair Procedure).
2006 -- 2007 model year Avalon vehicles produced BEFORE the Production Change
Effective VIN shown below.
MODEL PRODUCTION CHANGE EFFECTIVE VIN
MODELYEAR . . . PREVIOUS P/N . . . CURRENT P/N . . . PART NAME . . . QTY
2006 . . . . . . . . . 89661—07450/51 . . . 89661--07471* ECM ( PCM) . . . . 1
2007 . . . . . . . . . . 89661—07470 . . . . . 00451—00001 . . . .Label**. . . . . . . . 1
** Authorized Modifications Label 1
* The ECM (PCM) should NOT be replaced as part of the Repair Procedure.
Authorized Modification Labels may be ordered in packages of 25 from the Materials
Distribution Center (MDC) through Dealer Daily Dealer Support Materials System or by
calling the MDC at 1--800--622--2033.
OP CODE DESCRIPTION TIME OFP T1 T2
EG7023 Recalibrate ECM (PCM) 0.9 89661--##### 26 99
This repair is covered under the Toyota Federal Emission Warranty. This warranty is
in effect for 96 months or 80,000 miles, whichever occurs first, from the vehicle’s
* Warranty application is limited to correction of a problem based upon a customer’s specific complaint.