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Pinpoint Test K: The AWD Gauge Is Inoperative: Notes

Pinpoint Test K: The All-Wheel Drive (AWD) Gauge Is Inoperative 

Normal Operation 

The All-Wheel Drive (AWD) gauge displays the level of torque applied to each wheel in a bar graph depicted over the vehicle. The Instrument Panel Cluster (IPC) uses two inputs to determine the AWD gauge display. The first is an engine torque message sent from the PCM over the High Speed Controller Area Network (HS-CAN). The second is an AWD torque message sent from the PCM to the IPC over the HS-CAN.

As torque is applied to the wheels, the bars in the display begin to light up. The lowest torque displayed is the first bar closest to the wheel. As the amount of torque increases, additional bars are turned on outward from the wheel

If the engine torque data is missing for 5 seconds or less or if the IPC receives invalid torque data for 5 seconds or less, the IPC defaults the bar graphs in the display off.

If the IPC does not receive the engine torque data from the PCM for more than 5 seconds, the IPC sets DTC U0100:00 in continuous memory and defaults the bar graphs in the display off.

NOTE: If DTC U0100:00 sets in the IPC, other observable symptoms may be an inoperative tachometer, temperature gauge or odometer.

This pinpoint test is intended to diagnose the following: 

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