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Home >> GMC >> 2003 >> Safari Van Cargo, AWD >> Repair and Diagnosis >> External Pages >> Different car >> Section 1003 (Automatic Transmission - 4L60-E/4L65-E (Troubleshooting)) >> Troubleshooting >> Range Selector Displays Incorrect Range >> Diagnostic Aids

Diagnostic Aids

WARNING: This page is about a different car, the 2004 GMC Sierra and 2004 Chevrolet Silverado. However, it is still accessible from the selected car via links, so may be relevant.

Refer to the Transmission Range Switch Logic table for valid combinations of switch signal circuits A, B, C, and Parity. On the table, HI indicates an ignition voltage signal. LOW indicates a zero voltage signal.