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Home >> GMC >> 2003 >> Yukon Denali >> Repair and Diagnosis >> External Pages >> Different car >> Section 133 (Engine Controls - Self-Diagnostics) >> Programming >> Engine Control Module >> Notes
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Engine Control Module: Notes

WARNING: This page is about a different car, the 2003 Cadillac CTS. However, it is still accessible from the selected car via links, so may be relevant.

After replacing Engine Control Module (ECM) or if program needs to be updated, refer to latest Techline® information on ECM reprogramming. ECM can only be programmed using Tech 2® and Techline® terminal, or by using a personal computer equipped with the current service programming system software installed.

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