DTC P1A04 Cadillac

Lost Communication With Reverse Status

Lost Communication With Reverse Status

Description

Key on for 800ms, and the DME detected that it has lost communication with the power management charge voltage during its initial startup for 40ms (2 message cycles). The Engine Control Module (DME) communicates with all databus-capable control modules vi

Video Guide

Duration: PT4M7S | Uploaded: 2020-06-20

Diagnostic Info

  • DTC Code: P1A04
  • Brand: Cadillac
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