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Home >> Cadillac >> 2009 >> Escalade Base, AWD >> Repair and Diagnosis >> External Pages >> Different car >> Section 207 (Transfer Case - Mp 3023/3024-NQH) >> Diagnostic Information and Procedures >> DTC B0790 >> Circuit/System Description

Circuit/System Description

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The neutral indicator circuit consists of a light emitting diode (LED), a LED feed circuit and a LED control circuit. The ignition 1 voltage circuit is the LED feed circuit and continuously supplies voltage to the Neutral LED. When the Neutral mode has been selected, the transfer case shift control module (TCCM) provides a ground through the neutral indicator control circuit illuminating the LED. At key ON, the TCCM will illuminate and test each mode indicator for 2 seconds.

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