Diagnostic Aids

WARNING: This page is about a different car, the 2017 Cadillac ATS. However, it is still accessible from the selected car via links, so may be relevant.

Check failure records for further information on the conditions present when this DTC set.
If the transfer case oil temperature sensor circuits are open, or have high resistance, the scan tool will indicate -40°C/-40°F.
If the transfer case oil temperature circuits are shorted to voltage, the scan tool will read 154°C/300°F.
This fault will likely not be noticed by the driver. However, you can address this fault by looking at the transfer case 5 V reference parameter on the scan tool. The voltage should never be below 4.875 volts or above 5.125 volts.
Once corrected, you must power down the K69 Transfer Case Control Module in order to clear this code.
The transfer case drain plug is a good source for ground.
EL-49742 harness is a good source for B+ and ground.