TrailBlazer 2WD V8-6.0L VIN H (2006)
7. Connect the ECM electrical connector (1) to the TCM (2) if previously removed.
8. Install the ECM/TCM cover (2) to the ECM/TCM bracket (1).
9. Ensure the ECM/TCM cover retainers (2) are fully engaged with the ECM/TCM bracket (1).
10. Connect the cooling fan electrical connector.
11. Connect the negative battery cable.
12. If the TCM was replaced the replacement TCM must be programmed.