MID 039 - Machine Control Module (MCM)
CID 3244 - Fire Suppression Relay
FMI 05 - Current Below Normal
MID 039 CID 3244 FMI 05 appears when the Input/Output Module (I/O Module) has determined the Remote Fire Suppression Activation Relay current is below normal.
Illustration 1 | g03815018 |
NOTICE |
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Before performing any testing or diagnosis of the remote fire suppression activation, disconnect the fire suppression system from the autonomy cabinet. Failure to do so may result in inadvertent activation of the fire suppression system. |
Test Step 1. CHECK THE RELAY
- Turn the keyswitch and battery disconnect switch to the OFF position.
- Disconnect the Remote Fire Suppression Activation Relay (R9) from the Relay Panel.
- Measure the resistance between contact 85 and contact 86 of the relay.
Expected Result:
The resistance measurement is approximately 410 ohms at
Results:
- OK - The resistance measurement is approximately 410 ohms. Proceed to Test Step 2.
- NOT OK - The resistance measurement is more than 5000 ohms.
Repair: The relay has failed. Repeat this Test Step to verify that the relay has failed. Replace the relay.
STOP
Test Step 2. CHECK THE HARNESS FOR AN OPEN
- The keyswitch and battery disconnect switch remain in the OFF position.
- Reconnect the relay (R9) to the relay panel.
- Disconnect the machine harness connectors J1 and J2 from the Input/Output Module (I/O Module).
- At the machine harness connector J1 for the I/O Module, measure the resistance from contact J1-55 (wire K952-BR(Brown)) to J1-66 (wire 811-GY(Grey)).
Expected Result:
The resistance is less than 5 ohms.
Results:
- OK - The resistance measurement is less than 5 ohms. The machine harness is correct. Proceed to Test Step 3.
- NOT OK - The resistance is greater than 5000 ohms. The resistance measurement is not correct. There is an open circuit in the machine harness. A resistance measurement that is much greater than 5 ohms but less than 5000 ohms could indicate that one of the connection points in the circuit is not open, but is not a good connection.
Repair: The open or possible bad connection is in wire K952-BR(Brown) or wire 811-GY(Grey). Repair the machine harness or replace the machine harness.
STOP
Test Step 3. CHECK IF THE DIAGNOSTIC CODE IS STILL ACTIVE
- The keyswitch and battery disconnect switch remain in the OFF position.
- Inspect the contacts of the harness connectors that are used in the relay circuit. Ensure that the contacts are secure. Clean all of the contacts in the harness connectors.
- Reconnect all harness connectors.
- Turn the disconnect switch and the keyswitch to the ON position.
- Operate the machine.
- Determine if the diagnostic code is active.
Expected Result:
The diagnostic code is active.
Results:
- YES - CID 3244 FMI 05 is active.
Repair: Repeat this procedure. If the problem remains, replace the relay (R9). After the relay is replaced, repeat this Test Step again. If the diagnostic code is still active, the I/O Module may be faulty. However, I/O Module failure is unlikely. Exit this procedure and perform this procedure again. If the cause of the diagnostic code is not found, replace the ECM. Refer to Testing and Adjusting, KENR8394, "Electronic Control Module (ECM) – Replace".
STOP
- NO - CID 3244 FMI 05 is not active. The problem does not exist at this time.
Repair: The initial diagnostic code was probably caused by a poor electrical connection or a short at one of the harness connectors that was disconnected and reconnected. Resume normal machine operation.
STOP