Campaign - ECM Update For OBD O2 Sensor Improvements
# 05567A: On-Board Diagnostic System Software Upgrade-OBD 02 Sensor System Improvements-Reprogram Engine Control Module (ECM) - (Jan 11, 2006)05567A - ON-BOARD DIAGNOSTIC SYSTEM SOFTWARE UPGRADE - OBD
Subject: 02 SENSOR SYSTEM IMPROVEMENTS - REPROGRAM ENGINE CONTROL MODULE (ECM)
Models: 2004-2005 CHEVROLET EPICA WITH 2.5L L6 ENGINE (VIN L - RPO LBK)
BUILT BETWEEN AND INCLUDING VIN SEQUENCE BREAKPOINTS 4B101443 - 5B180931
THIS BULLETIN IS BEING REVISED TO UPDATE THE SOFTWARE CALIBRATION PART NUMBER INFORMATION. PLEASE DISCARD ALL COPIES OF 05567.
Purpose
This bulletin provides information about installing new Engine Control Module (ECM) software and calibration on certain 2004-05 Chevrolet Epica model vehicles, equipped with a 2.5L L6 (VIN L - RPO LBK) engine. The revised calibration includes OBD system improvements to correct vehicles experiencing a high level of unintentional illumination of the Malfunction Indicator Lamp (MIL), or false MIL, for the front and rear oxygen sensor response diagnostics as well as the evaporative emission system leak diagnostics, and should be installed as soon as practical. Install the new calibration on all affected vehicles identified in this bulletin, including vehicles in new dealer inventory and any vehicles that return for service, for any reason, during the applicable 8 year / 130,000 km emission controller warranty coverage period. To verify if an updated calibration is required, refer to the following procedure in this bulletin.
Parts Information
Important:
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 TIS data version 1.00 or later, broadcast to dealers via GM Access on January 5, 2006, and on the latest TIS 2000 CD-ROM version # 1.35/2006, available after January 23, 2006
Service Procedure
Important:
Before programming a control module, ensure that:
^ Battery voltage is greater then 12 volts but less then 16 volts. The battery must be charged before programming the control module if the battery voltage is low.
^ Turn OFF or disable any system that may put a load on the vehicle's battery, such as the following components: Interior lamps, accessories, DRLs. Apply the parking brake to disable the DRLs.
^ Make certain all tool connections are secure.
1. Connect the Tech 2(R) scan tool to the vehicle.
2. Request vehicle information using the Tech 2(R).
3. Disconnect the Tech 2(R) from the vehicle and connect it to a TIS+2000 terminal.
4. Select Service Programming System.
5. Select Tech 2(R) remote programming.
6. TIS 2000 will recognize the VIN and request country usage.
7. TIS 2000 will show the current calibration on the Tech 2(R) and what is available to reflash on TIS 2000.
8. Select Reprogram.
9. When upload of selected calibration is complete, disconnect the Tech 2(R) and return to the vehicle.
10. Connect the Tech 2(R) to the vehicle and go to the Service Programming System menu.
11. Select Program ECU and follow the instructions. The download process to the vehicle's ECM may take up to 10 minutes.
12. When the Tech 2(R) display indicates "Download Completed Successfully," turn the ignition key OFF for 60 seconds.
13. Turn ignition key ON and clear any engine or transmission DTCs that are set.
14. Reset the following ECM settings using the Tech 2(R) scan tool: ISC System and ECM.
15. Stabilize idle speed with the following procedure (refer to Idle Learn Procedure [SI Document ID 1686318]):
^ Ignition key OFF for 10 seconds
^ Ignition key ON for 10 seconds
^ Ignition key OFF for 10 seconds
16. Start the vehicle and confirm that the Check Engine Light/Malfunction Indicator Lamp is off.
Calibration Information
Claim Information
For vehicles repaired under the 8 year / 130,000 km emission controller warranty use:
Disclaimer