TM 5-3805-293-23-1
0005
FAILURE MODE IDENTIFIERS (FMIS) CONTINUED
Table 1. Detailed FMI Explanation - Continued.
FMI
DESCRIPTION
EXPLANATION
03
Voltage Above
A component or system voltage is higher than limit. FMI 03 most often relates
to a signal circuit. Some components that could cause an FMI 03 diagnostic
Normal or Shorted
code are:
High.
Sensor or switch is faulty. Some possble causes of an FMI 03 diagnostic
i
code are:
Wiring harness is damaged.
Electronic control has failed.
A sensor has failed and voltage output is high.
Any wiring harness has a sensor sign l wire shorted to a high voltage. A
a
high voltage is any voltage greater than sensor supply voltage.
A wiring harness that has an open circuit in sensor signal wire will cause
control to pull up. When this occurs, input circuit is pulled up to supply
voltage.
A faulty control will also cause an FMI 03, although this is very unlikely.
04
Voltage Below
A component or system voltage is lower than limit. FMI 04 most often relates
Normal or Shorted
to a signal circuit. Some components that could cause an FMI 04 diagnostic
Low.
code are:
Sensor or switch is faulty. Some possble causes of an FMI 04 diagnostic
i
code are:
Wiring harness is damaged.
Electronic control has failed.
A sensor has failed and voltage output is low.
Any wiring harness has a sensorsignal wire shorted to ground.
A faulty control will also cause an FMI 04, although this is very unlikely.
0005-12
