1–18 Copyright © 2001 General Motors Corp. Rebuilding With Dynax GENERAL DESCRIPTION WTEC III ELECTRONIC CONTROLS TROUBLESHOOTING MANUAL Transmission Configuration ECU, Shifter, Vehicle harness configuration: If this model/configuration transmission is rebuilt with Dynax clutch plates, one of the following modifications are necessary to make it compatible with vehicles of this configuration: TID level of original trans in vehicle Key Characteristics Model WTEC 2; CIN 07… and 08… WTEC 3; V8/V8A; CIN 0B… WTEC 3; V9/V9A; CIN 0D…
(this level ECU and software might be found installed in cases where the WTEC 3, V8/V8A ECU was replaced) pre-TID Former MD retarder Former temp sensors (pre-1998 retarder) (post-block) MD/B300 pre-TID or TID1 internal harness + Dynax cal Configuration not released Configuration not released MDR/B300R pre-TID or TID1 internal harness + Dynax cal Configuration not released Configuration not released MD3066/B400 pre-TID or TID1 internal harness + Dynax cal Configuration not released Configuration not released MD3066/B400R pre-TID or TID1 internal harness + Dynax cal Configuration not released Configuration not released MD7 pre-TID or TID1 internal harness + Dynax cal Configuration not released Configuration not released HD/B500 pre-TID or TID1 internal harness + Dynax cal Configuration not released Configuration not released HDR/B500R pre-TID or TID1 internal harness + Dynax cal Configuration not released Configuration not released TID1 Former MD retarder Former temp sensors (pre-1998 retarder) MD/B300 Retain TID 1 + Dynax cal TID 3 internal harness + updated calibration TID 3 internal harness + updated calibration MDR/B300R Retain TID 1 + Dynax cal TID1 internal harness + Dynax cal TID1 internal harness + Dynax cal MD3066/B400 Retain TID 1 Retain TID 1 or install TID 3 internal harness + updated cal Retain TID 1 or install TID 3 internal harness + updated cal MD3066/B400R Retain TID 1 Retain TID 1 Retain TID 1 MD7 Retain TID 1 + Dynax cal TID 3 internal harness + updated calibration TID 3 internal harness + updated calibration HD/B500 Retain TID 1 + Dynax cal TID 3 internal harness + updated calibration TID 3 internal harness + updated calibration HDR/B500R Retain TID 1 + Dynax cal TID 3 internal harness + new rtdr temp sensor and connector TID 3 internal harness + new rtdr temp sensor and connector TID2 Current MD retarder Current temperature sensors MD/B300 Configuration not released TID 3 internal harness + updated calibration TID 3 internal harness MDR/B300R Configuration not released TID 3 internal harness + updated calibration TID 3 internal harness MD3066/B400/3000MH Configuration not released TID 3 internal harness + updated calibration TID 3 internal harness MD3066R/B400R/ 3000MHR Configuration not released TID 3 internal harness + updated calibration TID 3 internal harness MD7 Configuration not released TID 3 internal harness + updated calibration TID 3 internal harness HD/B500/4000MH Configuration not released TID 3 internal harness + updated calibration TID 3 internal harness HDR/B500R/4000MHR Configuration not released TID 3 internal harness + updated calibration TID 3 internal harness HD7 Configuration not released TID 3 internal harness + updated calibration TID 3 internal harness HD7R Configuration not released TID 3 internal harness + updated calibration TID 3 internal harness TID3 Current MD retarder Dynax MD/B300 Configuration not released No changes needed No changes needed MDR/B300R Configuration not released No changes needed No changes needed MD3066/B400/3000MH Configuration not released No changes needed No changes needed MD3066R/B400R/ 3000MHR Configuration not released No changes needed No changes needed MD7 Configuration not released No changes needed No changes needed HD/B500/4000MH Configuration not released No changes needed No changes needed HDR/B500R/4000MHR Configuration not released No changes needed No changes needed HD7 Configuration not released No changes needed No changes needed HD7R Configuration not released No changes needed No changes needed