MBE 900/4000 SID 254 – DDEC-VCU Fault Description

Description of SID 254 – DDEC-VCU Fault

SID 254 indicates that a fault has occurred in the DDEC-VCU. ‪

This diagnostic condition is typically: ‪

  • Internal Error in DDEC-VCU (254 12).

See Figure “Location of DDEC-VCU and Wiring Harness Connectors” for location of DDEC-VCU.‪

 1. Passenger-Side Dash‪  4. 18-Pin Connector‪
 2. DDEC-VCU‪  5. 21-Pin Connector‪
 3. 15-Pin Connector‪  ‪

Figure 1. Location of DDEC-VCU and Wiring Harness Connectors

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