Garmin G1000 Maintenance Manual page 54

The following table provides guidance for troubleshooting individual engine/airframe sensor failures. Be
sure to also follow previous guidance given for the GEA 71.
The technician should troubleshoot to isolate the fault by checking sensor-to-GEA wiring, replacing the
suspect sensor, and finally by replacing the GEA 71. Replace one part at a time. Refer to Section 6.4.4.1
to check for correct operation of the sensors and GEA 71 after any part has been replaced.
Invalid Field
Fuel Quantity Sensors
Page 4-10
Revision C
Sensor
Tachometer
MAP Sensor
Fuel Flow
Oil Pressure Sensor
Oil Temperature
Sensor
(2 per side)
•
Check tachometer – GEA wiring. Refer to latest
revision of the 350/400 electrical manual.
•
Replace tachometer sensor. Refer to 350/400 AMM.
•
Replace GEA 71.
•
Check MAP sensor – GEA wiring. Refer to latest
revision of the 350/400 electrical manual.
•
Replace MAP sensor.
•
Replace GEA 71.
•
Check fuel flow sensor – GEA wiring. Refer to the
latest revision of the 350/400 electrical manual.
•
Replace fuel flow sensor. Refer to 350/400 AMM.
•
Replace GEA 71.
•
Check oil pressure sensor – GEA wiring. Refer to
latest revision of the 350/400 electrical manual.
•
Replace oil pressure sensor. Refer to 350/400 AMM.
•
Replace GEA 71.
•
Check oil temperature sensor – GEA wiring. Refer to
latest revision of the 350/400 electrical manual.
•
Replace oil temperature sensor. Refer to 350/400
AMM.
•
Replace GEA 71.
•
Check fuel quantity sensor – GEA wiring. Refer to
latest revision of the 350/400 electrical manual.
•
Replace fuel quantity sensor. Refer to the 350/400
AMM.
•
Replace GEA 71.
G1000-Columbia 350/400 System Maintenance Manual
Solution
190-00577-03