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06/28/19

Message Overview:

Fault Message:

DCPC DIODE #4-D4 FAILED

Fault Code:

2460449DCP

Associated CAS:

ELEC SYS FAIL
(Caution)

Reporting LRU: DC Power Center (DCPC)
System Description: 24-60-00
Schematic Diagram: 24-61-00 [ Global Express ]  [ G5000 ]  [ Global XRS ]
Wiring Diagram: 24-61-01 [ Global Express ]  [ G5000 ]  [ Global XRS ]

Fault Description:

DC Power Center (DCPC) does not sense the voltage from the Diode D4.

Possible Causes:

  • DC Power Center (DCPC) Diode (D4)
  • Electronic Module (EM) 4
  • Battery Feeder Card
  • DC Power Center (DCPC) (A63)
  • Associated Wiring

Troubleshooting Tips:

Advisory Wire/Service Bulletin: None

Forum Articles/Infoservice/Newsletter: None

Quick Links:

Standard Aircraft Configuration for Maintenance [ G5000 ]  [ Global Express ]  [ Global XRS ] AMM12-00-00-867-801
Connect Electrical Power to the Aircraft [ G5000 ]  [ Global Express ]  [ Global XRS ] AMM24-00-00-861-801
Electrical/Electronic Safety Precautions [ G5000 ]  [ Global Express ]  [ Global XRS ] AMM24-00-00-910-801
Electrostatic Discharge Safety Precautions [ G5000 ]  [ Global Express ]  [ Global XRS ] AMM24-00-00-910-802
Removal of the DC Power Center (DCPC) [ G5000 ]  [ Global Express ]  [ Global XRS ] AMM24-61-00-000-801
Installation of the DC Power Center (DCPC) [ G5000 ]  [ Global Express ]  [ Global XRS ] AMM24-61-00-400-801
Operational Test of the DC Power Center (DCPC) [ G5000 ]  [ Global Express ]  [ Global XRS ] AMM24-61-00-710-801
Removal of the DC Power Center (DCPC) Secondary-Power Distribution Assembly (SPDA) Feeder [ G5000 ]  [ Global Express ]  [ Global XRS ] AMM24-61-37-000-801
Installation of the DC Power Center (DCPC) Secondary-Power Distribution Assembly (SPDA) Feeder [ G5000 ]  [ Global Express ]  [ Global XRS ] AMM24-61-37-400-801
Operational Test of the DC Power Center (DCPC) Secondary-Power Distribution Assembly (SPDA) Feeder [ G5000 ]  [ Global Express ]  [ Global XRS ] AMM24-61-37-710-801
Removal of the DC Power Center (DCPC) Cabin DC Feeder [ G5000 ]  [ Global Express ]  [ Global XRS ] AMM24-61-41-000-801
Installation of the DC Power Center (DCPC) Cabin DC Feeder [ G5000 ]  [ Global Express ]  [ Global XRS ] AMM24-61-41-400-801
Operational Test of the DC Power Center (DCPC) Cabin DC Feeder [ G5000 ]  [ Global Express ]  [ Global XRS ] AMM24-61-41-710-801
Removal of the DC Power Center (DCPC) Diodes (D1, D2 and D3) [ G5000 ]  [ Global Express ]  [ Global XRS ] AMM24-61-49-000-803
Installation of the DC Power Center (DCPC) Diodes (D1, D2 and D3) [ G5000 ]  [ Global Express ]  [ Global XRS ] AMM24-61-49-400-803
Operational Test of the DC Power Center (DCPC) Diodes (D1, D2 and D3) [ G5000 ]  [ Global Express ]  [ Global XRS ] AMM24-61-49-710-803
Removal of the DC Power Center (DCPC) Electronic Modules [ G5000 ]  [ Global Express ]  [ Global XRS ] AMM24-61-65-000-801
Installation of the DC Power Center (DCPC) Electronic Modules [ G5000 ]  [ Global Express ]  [ Global XRS ] AMM24-61-65-400-801
Operational Test of the DC Power Center (DCPC) Electronic Modules [ G5000 ]  [ Global Express ]  [ Global XRS ] AMM24-61-65-710-801

Troubleshooting Recommendations:

  1. Swap BATT feeder card with DC 1 feeder card. Does the fault follow the card?

    1. If YES, replace the BATT feeder card and do close out.
    2. If NO, continue with next step.

  2. Remove BATT Feeder card in DCPC. Disconnect EM4 connector P407. Perform a resistance check for a short circuit as follows:

    From To Result
    P407-6 P407-12

    1. If there is a short circuit, replace D4 and do close out.
    2. If there is no short circuit, continue with next step.

  3. Perform a continuity check as follows:

    From To Result
    P407-7 Ground
    P407-11 Ground

    1. If there is continuity, go to step 9.
    2. If there is no continuity, continue with next step.

  4. Perform a continuity check as follows:

    From To Result
    P407-7 P431A-7
    P407-11 P431A-10

    1. If there is no continuity, go to step 9.
    2. If there is continuity, continue with next step.

  5. Perform a resistance check on EM4 as follows:

    From To Value Result
    J407-5 J407-6 562 Ω
    J407-6 J407-7 24 KΩ
    J407-12 J407-11 10 KΩ

    1. If the resistance values are incorrect, replace EM4 and do close out.
    2. If the resistance values are correct, continue with next step.

  6. Perform a continuity check as follows:

    From To Result
    P407-6 D4-Anode

    1. If there is no continuity, go to step 9.
    2. If there is continuity, continue with next step.

  7. Perform a continuity check as follows:

    From To Result
    P407-12 D4-Cathode

    1. If there is no continuity, go to step 9.
    2. If there is continuity, continue with next step.

  8. Replace Diode D4. Is the fault resolved?

    1. If YES, do close out.
    2. If NO, continue with next step.

  9. Replace DCPC.
  10. Do close out.

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