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Home >> Cadillac >> 2006 >> Escalade AWD >> Repair and Diagnosis >> External Pages >> Different car >> Section 787 (Transfer Case - NVG 246-NP8 - Service & Diagnosis) >> Diagnostic Information and Procedures >> Service Indicator Inoperative >> Circuit Description

Circuit Description

WARNING: This page is about a different car, the 2006 GMC Yukon XL, 2006 GMC Yukon, 2006 Chevrolet Tahoe, 2006 Chevrolet Suburban, and 2006 Chevrolet Avalanche. However, it is still accessible from the selected car via links, so may be relevant.

The SERVICE 4WD indicator is located in the instrument panel cluster (IPC), and shares the common power and ground of the IPC. The transfer case shift control module controls the service indicator lamp by sending the IPC a Class 2 message. This lamp may be controlled with the scan tool using the IPC device controls.

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