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FIP-22 Environment Sensor Error (Call for Service ENV Sensor Error)
Step Check
Yes No
1
Initial check
Check the following for damage.
SENSOR HUM TEMP condition
Replace the parts
concerned
Go to step [2]
2
Check HARNESS ASSY TMPA for signal
Is P/J2361-1PIN <=> P/J2361-2PIN less than +3VDC or
+0.1VDC?
Go to step [4] Go to step [3]
3
Check HARNESS ASSY TMPA for signal
Is P/J2361-3PIN <=> P/J2361-2PIN more than +2.5VDC?
Go to step [4]
Replace PWBA
HNB MCU
4
Check HARNESS ASSY TMPA for signal
Is P/J2361-4PIN <=> P/J2361-2PIN +5VDC?
Replace SENSOR
HUM TEMP
Replace PWBA
HNB MCU