Description of SID 248 – Pld-Mr DDEC-VCU Datalink Fault
SID 248 indicates that a fault has occurred in the PLD-MR DDEC-VCU datalink.
The diagnostic condition is typically:
- Propriety Datalink Fault (248 02)
- DDEC-VCU Internal Error Fault (248 14)
See Figure “Location of DDEC-VCU and Wiring Harness Connectors” for location of wiring harness connectors. See Figure “Connector Positions on DDEC-VCU” for connector positions on DDEC-VCU. See Figure “PLD-MR Engine Bulkhead Schematic — Business Class” and see Figure “PLD-MR Engine Bulkhead Schematic — Acterra” for wiring schematics.
| 1. Passenger-Side Dash | 4. 18-Pin Harness Connector (VC3) |
| 2. DDEC-VCU | 5. 21-Pin Harness Connector (VC1) |
| 3. 15-Pin Harness Connector (VC4) | |
Figure 1. Location of DDEC-VCU and Wiring Harness Connectors
| 1. 21-PinPin DDEC-VCU Connector (VC1) | 3. 15-Pin DDEC-VCU Connector (VC4) |
| 2. 18-Pin DDEC-VCU Connector (VC3) | 4. DDEC-VCU |
Figure 2. Connector Positions on DDEC-VCU
Figure 3. PLD-MR Engine Bulkhead Schematic — Business Class
Figure 4. PLD-MR Engine Bulkhead Schematic — Acterra
