Conditions for Running the DTC

WARNING: This page is about a different car, the 2007 Cadillac DTS. However, it is still accessible from the selected car via links, so may be relevant.

No TCM DTCs P0601, P0602, P0603, P0604 or P062F.
No IMS DTCs P1820, P1822, P1823, P1825, P1826 or P1915.
The ignition voltage is 9-18 volts.