815 Soil Compactor and 816 Landfill Compactor Systems Alarm

Alarm - Test

815 Soil Compactor and 816 Landfill Compactor Systems [M0113643]

815 Soil Compactor and 816 Landfill Compactor Systems Transmission

815 Soil Compactor and 816 Landfill Compactor Systems CAN Data Link - Test

ELECTRICAL AND STARTING SYSTEM

ALARM GP

815 Soil Compactor and 816 Landfill Compactor Systems Alarm - Test

1.1. Transmission ECM

2.1. Diagnostic Trouble Code Procedure

3.2. FMI 3

4.2. FMI 5

5.2. FMI 6

Transmission ECM

The following is a list of Diagnostic Trouble Codes (DTCs) that are associated with the alarm circuits of the machine.

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Table 1
Transmission ECM (MID 081)
J1939	CDL	Code Description	System Response
	271-3	Action Alarm : Voltage Above Normal	Indicator light will illuminate to alert operator.
	271-5	Action Alarm : Current Below Normal	Indicator light will illuminate to alert operator.
	271-6	Action Alarm : Current Above Normal	Indicator light will illuminate to alert operator.
	637-3	Backup Alarm : Voltage Above Normal	Alarm will sound continuously.
	637-6	Backup Alarm : Current Above Normal	Alarm will sound continuously.

The alarm is an output of the ECM. The alarm alerts the operator of a fault condition (fault alarm). The alarm also alerts people in the general area of the machine (backup alarm).

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Illustration 1	g06600933
Transmission ECM Alarm Circuits

The preceding diagram is a simplified schematic of the Transmission ECM connections. The schematic is electrically correct. However, not all the possible harness connectors are shown. Refer to the latest revision of Electrical Schematic, M0115149 or Electrical Schematic, M0115151 for the complete schematic.

Diagnostic Trouble Code Procedure

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Table 2
Required Tools
Tool	Part Number	Description	Qty
T1	146-4080⁽¹⁾	Digital Multimeter Group	1
	8T-3224	Needle Tip Group	1
	7X-1710	Multimeter Probe Group	1
	8T-8726	Cable Assembly (Three Pin) (3-Pin Breakout)	1
T2	JERD2129	Cat^® Electronic Technician (Cat ET)	1
		Windows-based PC	1
	538-5051	Communication Adapter Gp	1
T3	6V-4148	Connector Repair Kit (Sure Seal)	1
T4	190-8900	Connector Field Repair Kit (Deutsch)	1
T5	175-3700	Connector Repair Kit Deutsch DT	1

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⁽¹⁾	This multimeter can use an RS232C cable to connect to a Laptop computer or Dataview tool gp for troubleshooting.

Prior to beginning this procedure, inspect the harness connectors that are involved in this circuit. Poor connections can often be the cause of a problem in an electrical circuit. Verify that all connections in the circuit are clean, secure, and in good condition. If a problem with a connection is found, correct the problem and verify that the diagnostic code is active before performing a troubleshooting procedure.

Identify the active FMI code associated with the components.
Determine which code is present and use the list below to determine which procedure to follow.

FMI 3 diagnostic code, proceed to Section "FMI 3".
FMI 5 diagnostic code, proceed to Section "FMI 5".
FMI 6 diagnostic code, proceed to Section "FMI 6".

FMI 3

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Table 3
Check The Power Circuit For A Short
Troubleshooting Test Steps	Values	Results
1. Turn the key start switch and disconnect switch to the OFF position. 2. Disconnect the harness connectors from the ECM. 3. Disconnect the travel alarm from the machine harness. 4. At the connector for the ECM, measure the resistance between the travel alarm contact and all sources for +battery.	Each value is greater than 5K Ω.	Result: Each value is greater than 5K Ω. Proceed to "Check If The Diagnostic Code Remains", Table 4. Result: Resistance is less than 5 Ω, a short exists in signal circuit. Repair: Repair or replace machine harness. Note: A resistance greater than 5 Ω but less than 5K Ω indicates a loose or a corroded connection in the circuit. A resistance value greater than 5K Ω indicates an open in the circuit. Proceed to "Check If The Diagnostic Code Remains", Table 4.

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Table 4
Check If The Diagnostic Code Remains
Troubleshooting Test Steps	Values	Results
1. Reconnect all harness connectors. Return machine to normal operating condition. 2. Turn the key start switch and the disconnect switch ON. 3. Clear all diagnostic codes. 4. Operate the machine. 5. Stop the machine and engage the safety lock lever. 6. Check if the diagnostic code is active.	The diagnostic code is no longer present.	Result: The diagnostic code does not exist currently. The initial diagnostic code may have been caused by poor electrical connection or short at one of the harness connections. Resume machine operation. STOP. Result: The diagnostic trouble code has not been corrected. If the diagnostic code has not been corrected after performing the procedure a second time, the ECM may require replacement. Prior to replacing the ECM, always contact the Technical Communicator at your dealership for possible consultation with AVSpare. This consultation may effect repair time. Follow the steps in Troubleshooting, "ECM - Replace" if the ECM needs to be replaced. STOP.

FMI 5

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Table 5
Check The Alarm
Troubleshooting Test Steps	Values	Results
1. Turn the key start switch and the disconnect switch to the OFF position. 2. Disconnect the alarm from the machine harness. 3. Place a jumper wire between contact 1 and contact 2, at the harness connector for the alarm. 4. Turn the key start switch and the disconnect switch ON. Do not start the engine.	The FMI 5 diagnostic code changes to an FMI 6 after the jumper wire is installed.	Result: The harness is correct. The FMI 5 diagnostic code changes to an FMI 6 when the jumper wire is installed. The alarm has failed. Repair: Replace the alarm. Proceed to "Check If The Diagnostic Code Remains", Table 7. Result: The diagnostic code remains active. Proceed to "Check The Harness For An Open", Table6 .

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Table 6
Check The Harness For An Open
Troubleshooting Test Steps	Values	Results
1. Turn the key start switch and the disconnect switch to the OFF position. 2. Disconnect the harness connectors from the ECM. 3. The jumper wire remains that was installed in the previous test step remains in place. 4. At the machine harness connector for the ECM, measure the resistance between the signal contact and ground contact.	Each reading is less than 5 Ω.	Result: The reading is less than 5 Ω. The harness is correct. Proceed to "Check If The Diagnostic Code Remains", Table 7. Result: The reading is greater than 5K Ω. The circuit is open in the machine harness. Repair: The open is in the signal wire or the return wire. Repair or replace the machine harness. Note: A resistance greater than 5 Ω but less than 5K Ω indicates a loose or a corroded connection in the circuit. A resistance value greater than 5K Ω indicates an open in the circuit. Proceed to "Check If The Diagnostic Code Remains", Table 7.

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Table 7
Check If The Diagnostic Code Remains
Troubleshooting Test Steps	Values	Results
1. Reconnect all harness connectors. Return machine to normal operating condition. 2. Turn the key start switch and the disconnect switch to the ON position. 3. Clear all diagnostic codes. 4. Operate the machine. 5. Stop the machine and engage the safety lock lever. 6. Check if the diagnostic code is active.	The diagnostic code is no longer present.	Result: The diagnostic code does not exist currently. The initial diagnostic code may have been caused by poor electrical connection or short at one of the harness connections. Resume machine operation. STOP. Result: The diagnostic trouble code has not been corrected. If the diagnostic code has not been corrected after performing the procedure a second time, the ECM may require replacement. Prior to replacing the ECM, always contact the Technical Communicator at your dealership for possible consultation with AVSpare. This consultation may effect repair time. Follow the steps in Troubleshooting, "ECM - Replace" if the ECM needs to be replaced. STOP.

FMI 6

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Table 8
Check The Travel Alarm
Troubleshooting Test Steps	Values	Results
1. Turn the key start switch and disconnect switch to the ON position. Do NOT start the engine. 2. Check that diagnostic code is active. 3. Disconnect the travel alarm from machine harness. 4. Observe the status of the diagnostic code.	The FMI 6 changes to an FMI 5 when the alarm is removed.	Result: The FMI 6 changes to an FMI 5 when the alarm is disconnected. The alarm has failed. Repair: Replace the travel alarm. Proceed to "Check If The Diagnostic Code Remains", Table 10. Result: The diagnostic code does not change when the alarm is disconnected from the harness. Proceed to "Check The Signal Circuit For A Short To Ground", Table 9.

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Table 9
Check The Signal Circuit For A Short To Ground
Troubleshooting Test Steps	Values	Results
1. Turn the key start switch and disconnect switch to the OFF position. 2. The travel alarm remains disconnected from the harness. 3. Disconnect all harness connections at the ECM. 4. At the ECM harness connector, measure the resistance between the travel alarm contact and all possible sources of ground.	All readings are greater than 5K Ω.	Result: All resistance greater than 5K Ω. Proceed to "Check If The Diagnostic Code Remains", Table 10. Result: One or more readings less than 5 Ω. The short is between the signal contact and the circuit with the low-resistance value. Repair: Repair or replace the machine harness. Note: A resistance greater than 5 Ω but less than 5K Ω indicates a loose or a corroded connection in the circuit. A resistance value greater than 5K Ω indicates an open in the circuit. Proceed to "Check If The Diagnostic Code Remains", Table 10.

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Table 10
Check If The Diagnostic Code Remains
Troubleshooting Test Steps	Values	Results
1. Reconnect all harness connectors. Return machine to normal operating condition. 2. Turn the key start switch and the disconnect switch to the ON position. 3. Clear all diagnostic codes. 4. Operate the machine. 5. Stop the machine and engage the safety lock lever. 6. Check if the diagnostic code is active.	The diagnostic code is no longer present.	Result: The diagnostic code does not exist currently. The initial diagnostic code may have been caused by poor electrical connection or short at one of the harness connections. Resume machine operation. STOP. Result: The diagnostic trouble code has not been corrected. If the diagnostic code has not been corrected after performing the procedure a second time, the ECM may require replacement. Prior to replacing the ECM, always contact the Technical Communicator at your dealership for possible consultation with AVSpare. This consultation may effect repair time. Follow the steps in Troubleshooting, "ECM - Replace" if the ECM needs to be replaced. STOP.