NVG 233-NP1 2 Speed Automatic 4WD Transfer Case

Diagnostic Chart:

Wiring Diagram:

Circuit Description
The direct battery supply line (circuit 1540) provides the power to the module and motor circuitry.

This DTC detects a intermittent absence of battery voltage at the module when the module sees an ignition on voltage.

Conditions for Setting the DTC
The Auto Transfer Case (ATC) Control Module has been powered-up from the battery input for at least 11 times out of the last 19 ignition cycles.

Action Taken When the DTC Sets
There are no default actions associated with this DTC. The service AUTO/4WD will not be latched on.

Conditions for Clearing the DTC
- The Auto Transfer Case (ATC) Control Module will clear the DTC if the condition for setting the DTC no longer exists.
- A history DTC will clear after 100 consecutive ignition cycles without a fault present.
- History DTCs can be cleared using a scan tool.