04/14/21
Message Overview:
Message Description:
Right engine aircraft identification fault 1B.
[MCID 1602]
Engine Identification 1B.
A fault in the aircraft harness that defines the aircraft/engine configuration and the ECU B was sensed.
Possible Causes:
- Aircraft Wiring Harness
- Wiring Harness (W1)
- Full Authority Digital Engine Control Unit (FADEC) Electronic Control Unit B (ECU) (A42)
- Associated Wiring
Troubleshooting Tips:
Advisory Wire/Service Bulletin: None
Forum Articles/Infoservice/Newsletter: None
Quick Links:
| General Visual Inspection of the Engine Wiring Harness | AMM 71-50-00-210-802 |
| Removal of the FADEC Electrical Harness from the Left Engine | AMM 71-50-05-000-802 |
| Installation of the FADEC Electrical Harness on the Left Engine | AMM 71-50-05-400-802 |
| Removal of the Engine Electronic Control Unit (ECU) | AMM 76-10-05-000-801 |
| Installation of the Engine Electronic Control Unit (ECU) | AMM 76-10-05-400-801 |
| Wiring - Maintenance Practices - ALL | SPM 20-12-00-02 |
| Wire Repair - Maintenance Practices - ALL | SPM 20-12-10-02 |
| Electrical Connectors - Maintenance Practice - ALL | SPM 20-20-00-02 |
Troubleshooting Recommendations:
- MCID 1602 fault present, troubleshoot using the following steps for aircraft and engine fault isolation with reference to the Light Engine Maintenance Manual Subtask 72-00-00-810-341-A01.