Table 7-5, Fuel Flow Indication Test Points - Garmin G1000 Nxi System Maintenance Manual

5. If the test input shows a correct gauge reading within the Indication tolerance in Table
7-5, troubleshoot the fuel flow sensor per the Beechcraft King Air 300 Series
Maintenance Manual.
6. If the test input shows an incorrect gauge reading outside the Indication tolerance in
Table 7-5 perform the following:
a. Check gauge circuit wiring for faults.
b. Replace the Signal Conditioner.
c. Replace GEA 2.
7. If no other EIS gauge tests are needed, reconnect and safety the J105 connector and
reinstall the engine cowling(s).
Oil Pressure Indication Functional Check
Required test equipment:
Calibrated DC Power Source
If the left engine gauge needs to be tested, perform the following:
Disconnect the J104 firewall connector.
Apply external power to aircraft and start the G1000 system in normal mode.
Inject a DC voltage into the GEA 1 by connecting the DC power source to the left engine
firewall connector-pins J104-A (LO) and J104-B (HI).
If the test input shows a correct gauge reading within the Indication tolerance in Table
7-6, troubleshoot the oil pressure sensor per the Beechcraft King Air 300 Series
Maintenance Manual.
If the test input shows an incorrect gauge reading outside the Indication tolerance in
Table 7-6 perform the following:
a. Check gauge circuit wiring for faults.
b. Replace GEA 1.
Turn off the G1000 system and remove external power from the aircraft.
If no other EIS gauge tests are needed, reconnect and safety the J104 connector and
reinstall the engine cowling(s).
G1000 NXi System Maintenance Manual
King Air 300 Series
190-00716-N1
Test Point (Hz)
0
140
561
841
1122

Table 7-5, Fuel Flow Indication Test Points

Name
Indication (PPH)
0 ± 2
100 ± 10
400 ± 10
600 ± 10
800 ± 10
Requirement
0-10 VDC
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