Garmin Diamond DA40, Руководство по обслуживанию, Страница: 69 / 156

G1000/DA40 System Maintenance Manual Page 5-7
190-00303-03 Revision 6
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 7.4.3 to
check for correct operation of the sensors and GEA 71 after any part has been replaced.
Invalid Field Sensor Solution
Tachometer
Check tachometer – GEA wiring.
Replace tachometer sensor. Refer to Figure 2-18.
Replace defective GEA 71.
MAP Sensor
Check MAP sensor – GEA wiring.
Replace MAP sensor. Refer to Figure 2-14.
Replace defective GEA 71.
Fuel Flow
Check fuel flow sensor – GEA wiring.
Replace fuel flow sensor. Refer to Figure 2-20 and Figure
2-21.
Replace defective GEA 71.
CHT Probes
(4)
Check CHT probe – GEA wiring.
Replace CHT probe. Refer to Figure 2-22.
If all 4 CHT indicators are flagged, check the following:
Replace backshell thermocouple and/or configuration module
in GEA connector. See Sections 6.10 & 6.11.
Replace defective GEA 71.
EGT Probes
(4)
Check EGT probe – GEA wiring.
Replace EGT probe. Refer to Figure 2-23.
If all 4 EGT indicators are flagged, try the following:
Replace backshell thermocouple and/or configuration module
in GEA connector. See Sections 6.10 & 6.11.
Replace defective GEA 71.
Oil Pressure Sensor
Check oil pressure sensor – GEA wiring.
Replace oil pressure sensor. Refer to Figure 2-15.
Replace defective GEA 71.
Oil Temperature Sensor
Check oil temperature sensor – GEA wiring.
Replace oil temperature sensor. Refer to Figure 2-16.
Replace defective GEA 71.
Alternator
Current
Sensor
Check current sensor sensor – GEA wiring.
Replace current sensor. Refer to Figure 2-24.
Replace defective GEA 71.
Fuel Quantity Sensors
(2)
Check fuel quantity sensor – GEA wiring.
Replace fuel quantity sensor. Refer to the DA40 AMM.
Replace defective GEA 71.