07/22/19
Message Overview:
Fault Message:
EEC 2 INTERFACE / WRG
Fault Code:
3030611HBM
Associated CAS:
| Reporting LRU: | Heater/Brake-Temperature Monitoring Unit (HBMU) 1 |
| System Description: | 30-31-00 |
| Schematic Diagram: | 30-31-00 [ Global Express ] [ G5000 ] [ Global XRS ] |
| Wiring Diagram: | 30-31-03 [ Global Express ] [ G5000 ] [ Global XRS ] 31-42-05 [ Global Express ] [ G5000 ] [ Global XRS ] |
Fault Description:
Heater/Brake-Temperature Monitoring Unit (HBMU) 1 does not received Label 034 (Right Engine Running message) from Engine Electronic Controller (EEC) 2 or Labels is invalid.
Possible Causes:
- Data Acquisition Unit (DAU) 1 (A17)
- Engine Electronic Controller (EEC) 2
- Junction Box 3 (JB3)
- Heater/Brake-Temperature Monitoring Unit (HBMU) 1 (A121)
- Associate Wiring
Troubleshooting Tips:
Advisory Wire/Service Bulletin: None
Forum Articles/Infoservice/Newsletter: None
Quick Links:
| Removal of the Junction Box JB3 | AMM 24-00-01-000-801 [ Global Express ] [ G5000 ] [ Global XRS ] |
| Installation of the Junction Box JB3 | AMM 24-00-01-400-801 [ Global Express ] [ G5000 ] [ Global XRS ] |
| Removal of the Heater/Brake-Temperature Monitoring Unit (HBMU) |
AMM 30-31-01-000-801 [ Global Express ] [ G5000 ] [ Global XRS ] |
| Installation of the Heater/Brake-Temperature Monitoring Unit (HBMU) |
AMM 30-31-01-400-801 [ Global Express ] [ G5000 ] [ Global XRS ] |
| Removal of the Data Acquisition Units (DAU) | AMM 31-42-01-000-801 [ Global Express ] [ G5000 ] [ Global XRS ] |
| Installation of the Data Acquisition Units (DAU) | AMM 31-42-01-400-801 [ Global Express ] [ G5000 ] [ Global XRS ] |
| Removal of the Eng Electronic Controller (EEC) Mod 73-101559 | EMM 73-21-01-000-801-B00 [ Global Express ] [ G5000 ] [ Global XRS ] |
| Installation of the Eng Electronic Controller (EEC) Mod 73-101559 | EMM 73-21-01-400-801-B001 [ Global Express ] [ G5000 ] [ Global XRS ] |
| Wire Repair - Maintenance Practices - ALL | SPM 20-12-10-02 [ Global Express ] [ G5000 ] [ Global XRS ] |
Troubleshooting Recommendations:
- Look at the CAIMS stored and active faults. Make sure there is no fault present for DAU 1, DAU 3 and DAU 4, EEC 2.
- Using the Bus Reader, read WSP 18 data set 0 and data set 2 from DAU 3 and DAU 4. Make sure the WSPs are present and valid.
- Using the Bus Reader, read Label 270 from EEC 2A and EEC 2B. Make sure the Label is present and valid.
- Swap DAU 1 with DAU 2.
- If system checks are good, replace DAU 1 and do close out.
- If fault remains, continue with next step.
- Swap HBMU 1 with HBMU 2.
- If system checks are good, replace HBMU 1 and do close out.
- If fault remains, continue with next step.
- Swap EEC 2 with EEC 1.
- If system checks are good, replace EEC 2 and do close out.
- If fault remains, continue with next step.
- Perform wiring checks of ARINC between DAU 1, JB3 and HBMU 1.
- If wiring checks are not good, repair defective wiring as required and do close out.
- If wiring checks are good, continue with next step.
- Replace JB3.
- Do close out.
