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A/T Controls - SPS Error Mssg. When Programming Modules

Bulletin No.: 07-07-30-009

Date: May 02, 2007

INFORMATION

Subject:
Unable to Complete Programming of Any Module Due to SPS Error Message

Models:
2006 Chevrolet Silverado
2006 GMC Sierra

with Allison LCT Transmission (RPO MW7)

When programming any module on a truck equipped with a 6-speed Allison transmission, you may encounter SPS error messages and be unable to complete programming. This may be caused by the Transmission Control Module (TCM) for the Allison transmission waking up during programming and interrupting the procedure.

For 2006 models only, remove the 10 amp TCM fuse in the UBEC, continue with the programming process and when completed, reinstall the fuse.





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