WTEC II ELECTRONIC CONTROLS TROUBLESHOOTING MANUAL
1–12 Copyright © 1998 General Motors Corp.
GENERAL DESCRIPTION
C. Compatibility Between TransID Level And ECU Calibration Level
Table 1–2 shows the compatibility of the different ECU software levels with the different TransID
level transmissions.
The manufacture and sale of both WTEC II and WTEC III ECUs during most of 1997 required a
means of using a common transmission with either a WTEC II or a WTEC III ECU. A TID 1
transmission is the common transmission configuration for both control systems and production
began in September, 1996 (see Table 1–2). A TransID level 1 transmission is compatible with V6E,
V7, V7A, V8, and V8A ECUs.
TransID level 2 transmissions were produced beginning in late December, 1997 and all were for
WTEC III units. A TransID 2 transmission is compatible with only V8A ECUs.
Pre-TransID transmissions are only compatible with V6E, V7, and V7A ECUs. Pre-TransID
transmissions were produced before the first S/N break in Table 1–1.
Table 1–2. Software Level And TransID Compatibility
CIN Compatibility
Number
Software
Level
Compatible with
TransID Level
ECU
Production Dates
WTEC II
07 V6E pre-TransID and TID 1 until 9/94
08 V7 and V7A pre-TransID and TID 1 9/94 until 12/97
WTEC III
0A V8 TID 1 2/97 until 9/97
0B V8A TID 1 and TID 2 (and beyond) beginning 10/97
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