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Engine Controls - Aftermarket Calibration Identification

INFORMATION

Bulletin No.: 08-06-04-006D

Date: August 04, 2009

Subject: Information on Identifying Non-GM ECM Calibration Usages for LBZ, LLY, LMM Duramax(R) Diesel Engines and Power-up Hardware Detection for LMM Duramax(R) Diesel Engine - Photograph Tech 2(R) Calibration IDs and Calibration Verification Numbers (CVNs) and Transmission Data Screen Before Servicing for Driveability Concerns or Removing Engine/Transmission/Drivetrain Components

Models:
2005-2010 Chevrolet Express, Kodiak, Silverado
2005-2010 GMC Savana, Sierra, TopKick
Equipped With Duramax(R) Diesel Engine RPOs LBZ, LLY, LMM
Please Refer to GMVIS

Attention:
In order to process ANY driveability/engine/transmission/drivetrain warranty claim, you MUST photograph the required Tech 2(R) screen information BEFORE servicing or removing any engine/transmission/drivetrain components from the vehicle.

Supercede:
This bulletin is being revised to add the 2010 model year and advise the technician to photograph the required Tech 2(R) screen information before performing any service, to update the procedure information and the driveability/engine/transmission/drivetrain contact information. Please discard Corporate Bulletin Number 08-06-04-006C (Section 06 - Engine/Propulsion System).

Caution
General Motors does not support or endorse the use of add-on devices or engine calibration modifications (Power-Up Kit), that when installed increase the engine horsepower and torque. Non-GM parts can alter the design of the vehicle and introduce additional stress to the engine and drivetrain components. Customers should be informed that even after the add-on device has been removed or the engine calibration has been returned to a GM certified configuration, it is likely that engine, transmission, transfer case and/or other driveline components were weakened to the point of premature failure while subjected to the higher stresses from the non-GM add-on device and/or engine calibration. Engine, transmission, transfer case and/or other driveline components where a non-GM device has been installed and/or the engine calibration has been modified are not covered under the terms of the New Vehicle Warranty. Some customers may have reprogrammed the engine control module (ECM) with a non-GM released calibration. The (Power-Up Kit) engine calibration changes fueling and timing parameters and likely contributes to the following vehicle conditions:

- Poor performance
- Driveability concerns
- Increased emissions
- Black smoke (This symptom is not valid for the 6.6L (LMM) diesel equipped with the diesel particulate filter (DPF). The DPF will trap black smoke unless the DPF is cracked, melted or has been removed from the exhaust system.)
- Knocking noise
- Engine damage (Refer to Service Bulletin Number 06-06-01-007C for additional identifying information.)

2005-2007 RPO LLY and LBZ Instructions for Confirming Calibration Verification Numbers (CVNs) - Power-up Kit Detection

Important
In order to process ANY driveability/engine/transmission/drivetrain WARRANTY CLAIM, you MUST photograph the required Tech 2(R) screen information BEFORE servicing or removing any engine/transmission/drivetrain components from the vehicle.

1. Go to TIS2WEB
2. Select: Calibration Information (SPS Info)
3. Enter the VIN
4. Select: Get Cal ID
5. Select: ECM Engine Control Module
6. Select: Next
7. Select: Complete History
8. Print
9. Take the printout to the vehicle along with the Tech 2(R)
10. Plug in the Tech 2(R)
11. Go to diagnostics and build the vehicle
12. Select: Powertrain
13. Select: Engine
14. *Select: Engine Control Module
15. *Select: Module ID Information or I/M Information System if Module ID Information selection is not available.
16. *If: I/M Information System was selected in step 15, it may be necessary to select: Vehicle Information in order to display the calibration information.
*Steps may vary by engine controller.
17. Compare the Calibration ID and Calibration Verification Number (CVN) to the CVN shown on the TIS2WEB printout. Although the part numbers will be the same for each, it is the CVN that will determine if the calibration is GM issued. The CVNs should be the same.

^ If the CVN information is displayed as "N/A", it will be necessary to contact the TCSC to obtain the CVN information. Proceed to Step 18 or 19 depending on the information received from TCSC in order to make a determination.
^ If the part numbers match and ANY CVNs DO NOT match the printout, it is likely that a non-GM certified calibration has been installed. Proceed to Step 18.
^ If ALL of the CVNs are EXACTLY the same the calibration is GM issued. Proceed to Step 19.

18. If ANY of the CVNs in the ECM (CVNs on the Tech 2(R)) DO NOT match the TIS2WEB printout, then you MUST document the case using the following steps and Contact information:

1. Take clear digital picture(s) of the Tech 2(R) Vehicle Information screen(s) showing the VIN, the Calibration IDs and the CVNs (Programming History Calibration ID and Verification Numbers) that DO NOT match the TIS2WEB printout. Retain the printout information and the Tech 2(R) screen photographs with the repair order.
2. E-mail copies of the digital pictures and the reason the vehicle is currently in service for verification. Please copy your GM District Service Manager on the e-mail. GM will verify if the CVNs are not GM issued and respond via e-mail within 72 hours.
3. If a non-GM calibration is found and verification has taken place through GM, the remaining powertrain and driveline warranty will be cancelled and notated in GMVIS and the dealership will be notified.

19. If ALL of the CVNs in the ECM (CVNs on the Tech 2(R)) MATCH the TIS2WEB printout then you MUST document the case for engine/transmission/drivetrain WARRANTY CLAIMS using the following steps and Contact information:

1. Take clear digital picture(s) of the Tech 2(R) Vehicle Information screen(s) showing the VIN, the Calibration IDs and the CVNs (Programming History Calibration ID and Verification Numbers) that match the TIS2WEB printout. Retain the printout information and the Tech 2(R) screen photographs with the repair order.
2. Contact the PQC to open a case. Be prepared to provide all of the usual documentation that is normally required when requesting an assembly authorization from the PQC.
3. Allow two hours for the PQC to verify the calibrations and set up the case details.
4. You may call the PQC two hours after submitting the required information for authorization to replace the assembly. This will provide them time to receive, review the information and set up a case on the request.

2007-2010 RPO LMM Instructions for Confirming Calibration Verification Numbers (CVNs) - Power-up Kit Detection

Important
In order to process ANY driveability/engine/transmission/drivetrain WARRANTY CLAIM , you MUST photograph the required Tech 2(R) screen information BEFORE servicing or removing any engine/transmission/drivetrain components from the vehicle.

For 2007-2010 applications, an engine control module (ECM) algorithm was implemented that records the engine calibration part number and calibration verification number (CVN) for the last 10 flash programming events. The ECM records the engine calibration part number because it contains the parameters for increasing torque and fueling rates.

If a vehicle comes in for service for a driveability/powertrain concern as a result of a Power-Up Kit installation, the dealership technician can read the last 10 engine calibration part numbers and CVN history using a Tech 2(R).

The dealership technician will input each ECM calibration part number into the TIS2WEB/SPS CVN database to confirm the CVN history information. Refer to the following Tech 2(R) path table to verify the ECM calibrations.

1. Build the vehicle with the Tech 2(R).
2. Select F0: Engine Control Module.
3. Select F5: Module Identification Information.
4. Select F1: Programming History.
5. Turn On the ignition, with the engine Off.
6. Press the ENTER Key to Continue.

Important
An original production engine operation part number programmed in the ECM from the supplier, which is the last part number shown, would not be in the TIS2WEB/SPS database.

7. Record the Calibration ID Numbers and Verification Numbers from the Tech 2(R) Vehicle Information/Programming History Screen. If the list of Calibration Part Numbers is less than 10, the first Calibration ID Number (bottom of the list) will not be in TIS2WEB/SPS CVN database. In this case, the first Calibration ID Number is programmed at the ECM production factory and is reprogrammed at the vehicle assembly plant.
8. From TIS2WEB/SPS, record the Calibration Part Number into the CVN Database. Get the CVN.

^ If the CVN DOES NOT MATCH the CVN database, an unauthorized engine calibration part WAS PROGRAMMED into the ECM. Proceed to Step 9.
^ If the CVN MATCHES the CVN database, the calibration/s are GM issued and an unauthorized engine calibration part WAS NOT used. Proceed to Step 10.

9. If a non-GM calibration is found to be in the ECM (CVNs on the Tech 2(R) do not match TIS2WEB) then you MUST document the case.

1. Take clear digital picture(s) of the Tech 2(R) Vehicle Information screen(s) showing the VIN, the Calibration IDs and the CVNs (Programming History Calibration ID and Verification Numbers) that DO NOT match the TIS2WEB printout.
2. Take a clear digital picture of the Transmission Data screen. The path table is outlined in the following Instructions for Tech 2 Transmission Data Path section. Retain the printout information and the Tech 2(R) screen photographs with the repair order.
3. E-mail copies of the digital pictures and the reason the vehicle is currently in service for verification. Please copy your GM District Service Manager on the e-mail. GM will verify if the CVNs are not GM issued and respond via e-mail within 72 hours.
4. If a non-GM calibration is found and verification has taken place through GM, the remaining powertrain and driveline warranty will be cancelled and notated in GMVIS and the dealership will be notified.

10. If ALL of the CVNs in the ECM (CVNs on the Tech 2(R)) MATCH the TIS2WEB printout then you MUST document the case for engine/transmission/drivetrain WARRANTY CLAIMS using the following steps and Contact information:

1. Take clear digital picture(s) of the Tech 2(R) Vehicle Information screen(s) showing the VIN, the Calibration IDs and the CVNs (Programming History Calibration ID and Verification Numbers) that MATCH the TIS2WEB printout.
2. Take a clear digital picture of the Transmission Data screen. The path table is outlined in the following Instructions for Tech 2 Transmission Data Path section. Retain the printout information and the Tech 2(R) screen photographs with the repair order.
3. Contact the PQC to open a case. Be prepared to provide all of the usual documentation that is normally required when requesting an assembly authorization from the PQC.
4. Allow two hours for the PQC to verify the calibrations and set up the case details.
5. You may call the PQC two hours after submitting the required information for authorization to replace the assembly. This will provide them time to receive, review the information and set up a case on the request.

2007-2010 RPO LMM Instructions for Tech 2 Transmission Data Path - Power-up Hardware Detection

Transmission Data ONLY
Available With GMC Sierra, TopKick, Chevrolet Kodiak, Silverado

An example of this hardware is a propane injection system.

A transmission control module (TCM) algorithm has been implemented that records a maximum calculated input torque. This information is available via the Tech 2(R).

1. Build the vehicle with the Tech 2(R).
2. Select F3: Transmission Control Module
3. Select F1: Data Display
4. Select F0: Transmission Data
5. Highlight: Max Transmission Calc Engine Torque
6. Take a clear digital picture of the Tech 2(R) screen showing the Transmission Data and the VIN.

^ If the CVNs that you have retrieved above MATCH the GM CVNs, then retain the Tech 2(R) Transmission Data screen photograph with the repair order.
^ If the CVNs that you have retrieved above DO NOT MATCH the GM CVNs, then e-mail a copy of the digital picture and the reason the vehicle is currently in service for verification. Please copy your GM District Service Manager on the e-mail. GM will analyze the transmission data in order to verify if any aftermarket Power-up hardware has been installed on the vehicle and respond via e-mail within 72 hours.





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