06502 - Electronic Throttle Control Calibration - Reprogram ECM (06502)

06502 - ELECTRONIC THROTTLE CONTROL CALIBRATION - REPROGRAM ECM

SERVICE CAMPAIGN BULLETIN

Condition

General Motors has decided that a defect, which relates to motor vehicle safety, exists in certain  2006 model year Cadillac STS model vehicles equipped with all wheel drive and a 3.6L V6 (RPO LY7 - VIN 7) engine. The affected vehicles have a condition in which the torque monitoring functions of the electronic throttle control (ETC) are not enabled. These functions can limit engine speed and torque if unusual engine control module (ECM) hardware or software failures occur. Without these functions enabled, a persistent ECM failure could result in a throttle opening greater than commanded by the driver and a crash could occur. The diagnostics for the ETC components, like the pedal and throttle position sensors and wiring, are functioning properly and will limit engine torque if a malfunction is detected.

Correction

Dealers are to reprogram the engine control module (ECM).

Vehicles Involved

Involved are certain  2006 Cadillac STS model vehicles equipped with AWD and a 3.6L V6 (RPO LY7 - VIN 7) engine and built within these VIN breakpoints:

Year	Division	Model	From	Through
2006	Cadillac	STS	60118131	60169888

For US and Canada:  For GM dealers with involved vehicles, a Campaign Initiation Detail Report (CIDR) containing the complete vehicle identification number, customer name and address data has been prepared and will be loaded to the GM DealerWorld (US) Recall Information, GMinfoNet (Canada) Recall Reports. Dealers will not have a report available if they have no involved vehicles currently assigned.

The Campaign Initiation Detail Report may contain customer names and addresses obtained from Motor Vehicle Registration Records. The use of such motor vehicle registration data for any purpose other than follow-up necessary to complete this recall is a violation of law in several states/provinces/countries. Accordingly, you are urged to limit the use of this report to the follow-up necessary to complete this recall.

Parts Information

Do not attempt to order the calibration number from GMSPO. The calibration numbers are programmed into the engine control module (ECM) via a Techline TECH 2 scan tool and the Techline Information System (TIS) 2000 terminal with the calibration update.

Service 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 communications 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.

Reprogram ECM using TECH 2 Remote Programming Method:

1. Use normal "request method" through "Service Programming System" to request information from vehicle.
2. At Techline Terminal enter TIS SPS programming system.
3. Select TECH 2  from the "Select Diagnostic Tool" window.
4. Select Reprogram ECU  from the "Select Programming Process" window.
5. Select Vehicle  from the "Select ECU Location" window.
6. Select Next  to go to the "Preparing for Communication" instruction screen.
7. Select Next  to view the "Validate Vehicle ID Number" screen.
8. Select Next  to view "Supported Controllers" screen.
9. Select PCM/VCM Powertrain/Vehicle Control Module  from "Supported Controllers" window.
10. Select Next  to view the "Select Programming Type" window.
11. Select Normal  from the "Select Programming Type" window.
12. Select Next  to view the "Service Programming System Calibration Selection" screen.
13. Select Next  to view "Summary" screen.
14. Verify that the following information is displayed on the "Summary" screen:
    • ID = 2
    • Current # = 12567264 or 12606903
    • Selected # = 12608966
15. Select Next  to download the calibration to the TECH 2.
16. Enter "Service Programming Systems".
17. Select Program ECU  and follow on screen instructions.
18. Make sure to turn OFF the ignition for 30 seconds after the "Programming is Complete" screen is displayed. Clear diagnostic trouble codes (DTCs), if required.

Courtesy Transportation

The General Motors Courtesy Transportation Program is intended to minimize customer inconvenience when a vehicle requires a repair that is covered by the New Vehicle Limited Warranty. The availability of courtesy transportation to customers whose vehicles are within the warranty coverage period and involved in a product recall is very important in maintaining customer satisfaction. Dealers are to ensure that these customers understand that shuttle service or some other form of courtesy transportation is available and will be provided at no charge. Dealers should refer to the General Motors Service Policies and Procedures Manual for courtesy transportation guidelines.

Claim Information

Submit a Product Recall Claim with the information indicated below:

Repair Performed	Part Count	Part No.	Parts Allow	CC-FC	Labor Op	Labor Hours	Net Item
Reprogram ECM	N/A	-	N/A	MA-96	V1436	0.4	N/A
Courtesy Transportation for vehicles within the New Vehicle Limited Warranty (US & Canadian GM Dealers)	N/A	N/A	N/A	MA-96	*	N/A	**
* Submit courtesy transportation using normal labor operations for courtesy transportation as indicated in the GM Service Policies and Procedures Manual for vehicles within the New Vehicle Limited Warranty. ** The amount identified in the "Net Item" column should represent the actual dollar amount for courtesy transportation.

Refer to the General Motors WINS Claims Processing Manual for details on Product Recall Claim Submission.

Customer Notification

General Motors will notify customers of this recall on their vehicle (see copy of customer letter included with this bulletin). Customers will also be notified by phone as soon as the recall is launched.

Dealer Recall Responsibility - For US

The US National Traffic and Motor Vehicle Safety Act provides that each vehicle that is subject to a recall of this type must be adequately repaired within a reasonable time after the customer has tendered it for repair. A failure to repair within sixty days after tender of a vehicle is prima facie evidence of failure to repair within a reasonable time. If the condition is not adequately repaired within a reasonable time, the customer may be entitled to an identical or reasonably equivalent vehicle at no charge or to a refund of the purchase price less a reasonable allowance for depreciation. To avoid having to provide these burdensome remedies, every effort must be made to promptly schedule an appointment with each customer and to repair their vehicle as soon as possible. In the recall notification letters, customers are told how to contact the US National Highway Traffic Safety Administration if the recall is not completed within a reasonable time.

Dealer Recall Responsibility - All

All unsold new vehicles in dealers' possession and subject to this recall must be held and inspected/repaired per the service procedure of this recall bulletin before customers take possession of these vehicles.

Dealers are to service all vehicles subject to this recall at no charge to customers, regardless of mileage, age of vehicle, or ownership, from this time forward.

Customers who have recently purchased vehicles sold from your vehicle inventory, and for which there is no customer information indicated on the dealer listing, are to be contacted by the dealer. Arrangements are to be made to make the required correction according to the instructions contained in this bulletin. A copy of the customer letter is provided in this bulletin for your use in contacting customers. Recall follow-up cards should not be used for this purpose, since the customer may not as yet have received the notification letter.

In summary, whenever a vehicle subject to this recall enters your vehicle inventory, or is in your dealership for service in the future, you must take the steps necessary to be sure the recall correction has been made before selling or releasing the vehicle.

OWNER LETTER

January 2006

Dear General Motors Customer:

This notice is sent to you in accordance with the requirements of the National Traffic and Motor Vehicle Safety Act.