STS RWD V8-4.6L VIN A (2006)
PROM - Programmable Read Only Memory: All Technical Service Bulletins
Campaign - ECM update for OBD Improvements
SUBJECT:
System Software Upgrade-OBD System Improvements (Reprogram Engine Control Module (ECM))
# 06516 - (03/23/2006)
Models:
2005-2006 CADILLAC SRX, STS, XLR EQUIPPED WITH 4.6L V8 ENGINE (RPO LH2 - VIN A)
Purpose
This bulletin provides information about installing new Engine Control Module (ECM) software and calibration on certain 2005-06 Cadillac XLR, SRX
and STS model vehicles, equipped with a 4.6L V8 (RPO LH2 - VIN A) engine. The revised calibration includes OBD system improvements that affect
the canister purge solenoid (CPS) diagnostics. Install the new calibration and software on all affected vehicles identified in this bulletin as soon as
practical, including vehicles in new dealer inventory and any vehicles that return for service, for any reason, during the applicable 8 year/80,000 mile
(130,000 km) emission controller warranty coverage period. To verify if an updated calibration is required, refer to the following procedure in this
bulletin.
Important:
A VIN list of involved vehicles currently in dealer inventory was included in the original bulletin and not with this copy to the Administrative
Message (US) or Dealer Communication (Canada) used to release this bulletin.
Parts Information
Do not attempt to order the calibration number from GMSPO. The calibration numbers are programmed into the ECM via a Techline Tech 2 scan tool
and the Techline Information System (TIS) 2000 terminal with the calibration update. Use data version 2.0 for 2006 or later, broadcast to dealers on
February 5, 2006; (February 8 in Canada) and on TIS CD-ROM version 2.0 / 2006 or later, mailed to dealers beginning February 15, 2006 (February 20
in Canada).
Service Procedure
The "Required Field Actions" section of the GM Vehicle Inquiry System (GMVIS) must be checked to determine if a specific vehicle requires this
action. If GMVIS indicates that System Software Upgrade 06516 remains [Isquo ]open' and ECM reprogramming has not taken place otherwise after the
TIS Broadcast or CD-ROM availability dates identified in this bulletin, reprogram the ECM using a Tech 2 scan tool with the calibration update from
Techline Information System (TIS) 2000.
ECM Reprogramming
Notice:
Before reprogramming, please check the battery condition to prevent a reprogram error of the engine control module (ECM) due to battery discharge.
If the vehicle battery is not fully charged, ensure that it is fully charged prior to performing the reprogramming procedure.
The ignition switch must be in the proper position The Tech 2 prompts you to turn ON the ignition, with the engine OFF. DO NOT change the position
of the ignition switch during the programming procedure, unless instructed to do so.
Make certain all tool connections are secure, including the following components and circuits:
^
The RS-232 communication cable port
^
The connection at the data link connector (DLC)
^
The voltage supply circuits
DO NOT disturb the tool harnesses while programming. If an interruption occurs during the programming procedure, programming failure or control
module damage may occur.
DO NOT turn OFF the ignition if the programming procedure is interrupted or unsuccessful. Ensure that all control module and DLC connections are
secure and the TIS terminal operating software is up to date. Attempt to reprogram the control module. If the control module cannot be programmed,
replace the control module.0
Tech 2 Remote Programming
1.
Use the normal "request method" through "Service Programming System" to request information from the vehicle.
