FAILURE MODE IDENTIFIERS (FMIS) CONTINUED
Table 1. Detailed FMI Explanation - Continued.
Current through component or system is lower than limit. FMI 05 is most often
Normal or Open
related to a driver circuit. Some possible causes of an FMI 05 diagnostic code
There is an open circuit or a poor wiring harness connection.
There is a switch in OPEN position.
Current through component or system is higher than limit. FMI 06 is most
Normal or Grounded
often related to a driver circuit. This fault is very similar to FMI 04. Some
possible causes of an FMI 06 diagnostic code are:
There is a short to ground in wiring harness connection.
There is a shorted relay.
A faulty control will also cause an FM 06, although this is very unlikely.
Control detects a signal sent to a mechanical system and response is not
correct. Some possible causes of an FMI 07 diagnostic code are:
Component responds improperly.
Component is stuck in a position.
Component has failed.
Engine is shut down.
Machine is being used improperly.
This code occurs when signal is not in expected range. FMI 08 can also relate
Pulse Width, or
to a faulty sensor. Some possible causes of an FMI 08 diagnostic code are:
Wiring harness connectionsare intermittent or poor.
There are loose mechanical devices.
This relates to communications on data link. FMI 09 occurs when a control is
not able to get information from another control. Some possible causes of an
FMI 09 diagnostic code are:
Control module is not communicating on data link correctly.
Rate of data transmission is abnormal.
Data link has failed.
There is a mismatch of software.
Abnormal Rate of
This relates to a signal that changes too quickly. Rate of change is outside of