Express 3/4 Ton Van V8-4.8L VIN V (2003)
2.
Reprogram the PCM with TIS version 4, released in April 2004 or later titled "New calibration to reduce the potential for setting P0706. Also
addresses 3-2 downshift feel."
With the new calibration, if the P0706 diagnostic fails, the software assumes Park if the engine is not running. If the engine is running, software
uses PSM (pressure switch manifold) as back-up.
Use one of the tour following procedures to reprogram the PCM:
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Service Programming System (SPS) Remote Procedure.
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Service Programming System (SPS) Pass-Thru Procedure.
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Service Programming System (SPS) Off Board Remote Procedure.
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Service Programming System (SPS) Off Board Pass-Thru Procedure.
Warranty Information
For vehicles repaired under warranty, use the table.
For additional Labor Operation Information, refer to Warranty Administration Bulletin 02-06-04-057.
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