Conditions for Setting the DTC
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.
C0412 05
The rear differential oil pressure/temperature sensor signal voltage is greater than or equal to 4.88 V.
C0412 06
The rear differential oil pressure/temperature sensor signal voltage is less than or equal to 0.123 V.
C0412 08
The rear differential oil pressure/temperature sensor signal voltage is greater than to 1.89 V and less than 4.88 V.
OR
The rear differential oil pressure/temperature sensor signal voltage is greater than to 0.123 V and less than 0.66 V.