tC L4-2.4L (2AZ-FE) (2005)
Engine Control Module: Technical Service Bulletins
Engine Controls - Entering VIN When Replacing ECM
ENGINE
EG045-04
REVISED
Title:
ENTERING VIN DURING ECM (PCM)
REPLACEMENT AND/OR DTC P0630
Models:
All '05 Models
October 14, 2004
TSB REVISION NOTICE:
January 24, 2005: Step 4 has been clarified to include Prius vehicles.
The previous TSB should be discarded.
Introduction
All 2005 and subsequent model year Toyota and Scion vehicles have the VIN (Vehicle Identification Number) stored in the Electronic Control Module
(ECM) (SAE term: Powertrain Control Module/PCM) non-volatile memory. The VIN is accessible on the data stream using the Toyota Diagnostic
Tester and can also be written to a new ECM (PCM) using a VIN Read/Write" utility.
Service ECMs (supply parts) are shipped without the VIN; therefore, as part of the ECM (PCM) replacement procedure, the VIN must be written to the
replacement ECM (PCM) using the Diagnostic Tester utility function.
For most 2005 model year vehicles, failure to write the VIN to the ECM (PCM) will result in a M.I.L. "ON" condition and set DTC P0630: VIN Not
Programmed or Mismatch - ECM (PCM). The five models listed below do not support DTC P0630.
^
Scion XA
^
Scion xB
It is very important to remember to enter the VIN on these vehicles. Vehicles with missing VINs are subject to failing some state and local vehicle
emissions Inspection and Maintenance programs.
Applicable Vehicles
All 2005 model year vehicles.
Warranty Information