Lexus Supports ASE CertificationPage 1 of 3
Technical Service
Information Bulletin
October 14, 2004
EG012-04Title:
ENTERING VIN DURING ECM (PCM)
REPLACEMENT AND/OR DTC P0630
Models:
All '04 ± '06 Models
TSIB REVISION NOTICE:
June 3, 2005: Content has been updated to include 2004 and 2006 model year
vehicles. Step 4 of the VIN Write Procedure (page 2) and step 3 of the VIN Read
Procedure (page 3) have been clarified to include RX 400h vehicles.
Previous versions of this TSB should be discarded.
All 2005 and subsequent model year Lexus 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
Lexus Diagnostic Tester and can also be written to a new ECM (PCM) using a ªVIN
Read/Writeº 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. Failure to write the VIN to the ECM (PCM) will
result in a M.I.L. ªONº condition and set DTC P0630: VIN Not Programmed or Mismatch ±
ECM (PCM).
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.
NOTE:
2004 model year vehicles which have been flash reprogrammed may contain updated
2005 model year OBD II logic. These vehicles will require VIN entry into the ECM (PCM)
after reprogramming.
2004 model year vehicles that have been flash reprogrammed.
All 2005 ± 2006 model year vehicles.
OP CODEDESCRIPTIONTIMEOFPT1T2
N/ANot Applicable to Warranty±±±±
ENGINE
Introduction
Applicable
Vehicles
Warranty
Information
Lexus Supports ASE CertificationPage 1 of 3
Title:
INITIAL CALIBRATION OF COMPASS
DURING PDS
Models:
'05 ± '06 ES 330
Technical Service
Information Bulletin
August 22, 2005
PD034-05
The compass indicates the direction that the vehicle is heading by detecting the
direction and strength of the Earth's magnetic field and processing this data using
the compass sensor and microcomputer.
Detection of the direction and strength of the Earth's magnetic field varies according to
the area in which the vehicle is used and is affected by the residual magnetism of the
vehicle. For this reason, the geographic direction displayed may also deviate from the
direction determined by the Earth's magnetic field according to the area in which the
vehicle is used.
Perform the initial calibration of the compass in your dealership prior to delivery
to customers.
ªCOMPº Switch
Compass
2005 ± 2006 model year ES 330 vehicles.
OP CODEDESCRIPTIONTIMEOFPT1T2
N/ANot Applicable to Warranty±±±±
PRE-DELIVERY SERVICE
Introduction
Applicable
Vehicles
Warranty
Information
