07/22/19
Message Overview:
Fault Message:
EEC 1 INTERFACE / WRG
Fault Code:
3030612HBM
Associated CAS:
| Reporting LRU: | Heater/Brake-Temperature Monitoring Unit (HBMU) 2 |
| 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 ] 31-42-06 [ Global Express ] [ G5000 ] [ Global XRS ] |
Fault Description:
Heater/Brake-Temperature Monitoring Unit (HBMU) 2 does not received Label 030 (Left Engine Running message) from Engine Electronic Controller (EEC) 1 or Labels is invalid.
Possible Causes:
- Data Acquisition Unit (DAU) 2 (A18)
- Engine Electronic Controller (EEC) 1
- Junction Box 4 (JB4)
- Heater/Brake-Temperature Monitoring Unit (HBMU) 2 (A93)
- Associate Wiring
Troubleshooting Tips:
Advisory Wire/Service Bulletin: None
Forum Articles/Infoservice/Newsletter: None
Quick Links:
| Removal of the Junction Box JB4 | AMM 24-00-05-000-801 [ Global Express ] [ G5000 ] [ Global XRS ] |
| Installation of the Junction Box JB4 | AMM 24-00-05-400-801 [ 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 and DAU 2, EEC 1.
- Using the Bus Reader, read WSP 18 data set 0 and data set 2 from DAU 1A and DAU 1B. Make sure the WSPs are present and valid.
- Using the Bus Reader, read Label 270 from EEC 1A and EEC 1B. Make sure the Label is present and valid.
- Swap DAU 2 with DAU 1.
- If system checks are good, replace DAU 2 and do close out.
- If fault remains, continue with next step.
- Swap HBMU 2 with HBMU 1.
- If system checks are good, replace HBMU 2 and do close out.
- If fault remains, continue with next step.
- Swap EEC 1 with EEC 2.
- If system checks are good, replace EEC 1 and do close out.
- If fault remains, continue with next step.
- Perform wiring checks of ARINC between DAU 2, JB4 and HBMU 2.
- 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.
