DTC P1A0D Cadillac
Lost Communication With Engine Control Module (ECM)
Lost Communication With Engine Control Module (ECM)
Description
Voltage supplied to the modules is in the normal operating voltage range. The vehicle power mode requires serial data communication to occur.
Cause and Solution
A poor connection at the inoperative module may cause this code to set.An improperly powered module may cause this code to set.Some modules may not have internal protection for specific voltage outputs and may open a battery positive voltage o
Video Guide
Diagnostic Info
- DTC Code: P1A0D
- Brand: Cadillac