DTC P0881 Cadillac

Description

Inspect the wiring for poor electrical connections at the TCM. Inspect for the following conditions:
A bent terminal
A backed-out terminal
A damaged terminal
Poor terminal tension
A chafed wire
A broken wire inside the insulation
When diagnosing for an intermittent short or open, massage the wiring harness while watching the test equipment for a change.
You may have to drive the vehicle in order to experience a condition.
Vehicle accessories imposing a large load on the battery circuit could also cause this DTC to set.
Loose or corroded battery cables could allow this DTC to set.
An internal TCM failure, due to a burn up circuit trace, could allow this DTC to set.
Vehicle charging system failure may cause this DTC to set under certain circumstances.
A defective vehicle battery may induce this DTC.