DTC P2A03 Cadillac
DDM and Rear LH Serial Communication Error
DDM and Rear LH Serial Communication Error
Description
This code is outputted when the serial communication protocol is broken between DDM and RLDM by open, short or noise.
Cause and Solution
RLDM Local Comm. Line open RLDM Local Comm. Line short to battery ground
Video Guide
Diagnostic Info
- DTC Code: P2A03
- Brand: Cadillac