4N8941 MUFFLER AS Caterpillar parts
140G, 14G, D6C, D6D, D6E SR
Rating:
Alternative (cross code) number:
CA4N8941
4N-8941
4N8941
CA4N8941
4N-8941
4N8941
Weight: 21 pounds 9 kg.
MOTOR GRADER, TRACK-TYPE TRACTOR,
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Part 1123249 Muffler For Catterpillar (4N8941, 2Y6555, 112-3249, 2472661, 8S5034)
SOLOGEAR Interchange Part Number: 4N7870, 1123249, 4N8941
SOLOGEAR Interchange Part Number: 4N7870, 1123249, 4N8941
1123249 Muffler for Catterpillar (4N8941, 2Y6555, 112-3249, 2472661, 8S5034)
SOLOGEAR Interchanges Part Number: 4N7870, 1123249, 4N8941
SOLOGEAR Interchanges Part Number: 4N7870, 1123249, 4N8941
Compatible equipment models: 4N8941:
Information:
MID 027 CID 0826 FMI 04Conditions Which Generate This Code:
Illustration 1 g01991656
Connections of the torque converter oil temperature sensor
The diagnostic code is associated with the torque converter oil temperature sensor. The FMI 04 means that the ECU has determined that the voltage of the circuit for the sensor is below normal.The possible causes for this diagnostic code are listed:
The sensor supply circuit to the torque converter oil temperature sensor is shorted to ground.
A sensor has failed.
The ECU has failed. This is unlikely.Note: The following test procedure may create other diagnostic codes. Ignore these created diagnostic codes and clear the diagnostic codes when the original diagnostic code has been corrected. Ensure that the diagnostic code of CID 0826 FMI 04 is active before performing this procedure.Note: Use the digital multimeter for the measurements in this procedure.Test Step 1. CHECK THE SENSOR
Turn the disconnect switch and the key start switch to the ON position.
Ensure that the diagnostic code is active.
Observe the status of the diagnostic code. Disconnect the sensor from the machine harness. Expected Result:The CID 0826 FMI 04 remains active.Results:
OK - The diagnostic code remains active. The sensor is correct. Proceed to Test Step 2.
NOT OK - The diagnostic code is no longer active. The sensor has failed.Repair: Replace the sensor.STOPTest Step 2. CHECK THE WIRING HARNESS OF THE SENSOR FOR A SHORT TO GROUND
Turn the key start switch and the disconnect switch to the OFF position.
Disconnect the machine harness from the sensor.
Disconnect the machine harness connectors J1 and J2 from the ECU.
At the machine harness connector for the ECU, measure the resistance from the signal contact J1-29 (wire 407-PK(Pink)) of the machine harness to all possible sources of ground. Measure the resistance to all contacts of the machine harness connectors for the ECU. Expected Result:Each resistance measurement is greater than 5000 ohms.Results:
OK - Each resistance measurement is greater than 5000 ohms. The machine harness is correct. Proceed to Test Step 3.
NOT OK - One or more resistance measurements is not correct. There is a short in the machine harness.Repair: The short is between signal contact J1-29 (wire 407-PK(Pink)) and the circuit with the low resistance measurement. Repair the machine harness or replace the machine harness.STOPTest Step 3. CHECK IF THE DIAGNOSTIC CODE IS STILL ACTIVE.
Inspect the harness connectors. Clean the contacts of the harness connectors and check the wires for damage to the insulation that is caused by excessive heat, battery acid, or chafing.
Perform a 45 N (10 lb) pull test on each of the wires that are associated with the circuit.
Reconnect all of the harness connectors in order to make sure that the connectors are fully seated. Also, make sure that the clips for each connector are completely fastened.
Turn the disconnect switch and the key start switch to the ON position.
Operate the machine.
Determine if the CID 0826 FMI 04 is active. Expected Result:The CID 0826 FMI 04 is active.Results:
YES - The CID 0826 FMI 04 is active. The problem has not been corrected.Repair: Check the circuit again.
Illustration 1 g01991656
Connections of the torque converter oil temperature sensor
The diagnostic code is associated with the torque converter oil temperature sensor. The FMI 04 means that the ECU has determined that the voltage of the circuit for the sensor is below normal.The possible causes for this diagnostic code are listed:
The sensor supply circuit to the torque converter oil temperature sensor is shorted to ground.
A sensor has failed.
The ECU has failed. This is unlikely.Note: The following test procedure may create other diagnostic codes. Ignore these created diagnostic codes and clear the diagnostic codes when the original diagnostic code has been corrected. Ensure that the diagnostic code of CID 0826 FMI 04 is active before performing this procedure.Note: Use the digital multimeter for the measurements in this procedure.Test Step 1. CHECK THE SENSOR
Turn the disconnect switch and the key start switch to the ON position.
Ensure that the diagnostic code is active.
Observe the status of the diagnostic code. Disconnect the sensor from the machine harness. Expected Result:The CID 0826 FMI 04 remains active.Results:
OK - The diagnostic code remains active. The sensor is correct. Proceed to Test Step 2.
NOT OK - The diagnostic code is no longer active. The sensor has failed.Repair: Replace the sensor.STOPTest Step 2. CHECK THE WIRING HARNESS OF THE SENSOR FOR A SHORT TO GROUND
Turn the key start switch and the disconnect switch to the OFF position.
Disconnect the machine harness from the sensor.
Disconnect the machine harness connectors J1 and J2 from the ECU.
At the machine harness connector for the ECU, measure the resistance from the signal contact J1-29 (wire 407-PK(Pink)) of the machine harness to all possible sources of ground. Measure the resistance to all contacts of the machine harness connectors for the ECU. Expected Result:Each resistance measurement is greater than 5000 ohms.Results:
OK - Each resistance measurement is greater than 5000 ohms. The machine harness is correct. Proceed to Test Step 3.
NOT OK - One or more resistance measurements is not correct. There is a short in the machine harness.Repair: The short is between signal contact J1-29 (wire 407-PK(Pink)) and the circuit with the low resistance measurement. Repair the machine harness or replace the machine harness.STOPTest Step 3. CHECK IF THE DIAGNOSTIC CODE IS STILL ACTIVE.
Inspect the harness connectors. Clean the contacts of the harness connectors and check the wires for damage to the insulation that is caused by excessive heat, battery acid, or chafing.
Perform a 45 N (10 lb) pull test on each of the wires that are associated with the circuit.
Reconnect all of the harness connectors in order to make sure that the connectors are fully seated. Also, make sure that the clips for each connector are completely fastened.
Turn the disconnect switch and the key start switch to the ON position.
Operate the machine.
Determine if the CID 0826 FMI 04 is active. Expected Result:The CID 0826 FMI 04 is active.Results:
YES - The CID 0826 FMI 04 is active. The problem has not been corrected.Repair: Check the circuit again.
Caterpillar parts catalog:
Parts muffler Caterpillar catalog:
4N8296
MUFFLER GP
12G, 140G, 14G, 160G
12G, 140G, 14G, 160G
5Y1986
MUFFLER GP
D6E SR
D6E SR
6N8265
MUFFLER GROUP
D6D, D6E SR
D6D, D6E SR
2534427
MUFFLER & CONVERTER
140G, 14G
140G, 14G
8N5570
MUFFLER GP
140G, 14G
140G, 14G
2Y9680
MUFFLER GP
D6D SR, D6E SR
D6D SR, D6E SR
2Y6555
MUFFLER AS
D6D, D6D SR, D6E SR
D6D, D6D SR, D6E SR
1123249
MUFFLER AS
12G, 140G, 14G, 160G, D6F SR, D6G SR
12G, 140G, 14G, 160G, D6F SR, D6G SR
2P6538
MUFFLER ASSEM.
14G, 966C
14G, 966C
8N5565
MUFFLER AS
140G, 14G
140G, 14G
2Y6555
MUFFLER AS
D6D, D6D SR, D6E SR
D6D, D6D SR, D6E SR
1125088
MUFFLER AS
D6H, D6H XL, D6H XR, D6R
D6H, D6H XL, D6H XR, D6R
7E3683
MUFFLER AS
D6H, D6H XL, D6H XR
D6H, D6H XL, D6H XR
2W3597
MUFFLER AS
D4H, D4H XL, D4HTSK III, D5H, D5H XL, D5HTSK II
D4H, D4H XL, D4HTSK III, D5H, D5H XL, D5HTSK II
1649633
MUFFLER AS
578, 583R, D8N, D8R, D8R II
578, 583R, D8N, D8R, D8R II
4W8485
MUFFLER AS
589, D8L, D9R
589, D8L, D9R
1004594
MUFFLER AS
963B
963B
8S0905
MUFFLER AS
14E, 627, 815, 966C, D4E SR
14E, 627, 815, 966C, D4E SR
1077473
MUFFLER AS
939, 939C, D5C III
939, 939C, D5C III
1260734
MUFFLER AS
933, 933C, D3C III, D4C III
933, 933C, D3C III, D4C III
6I2518
MUFFLER AS
D4H XL
D4H XL
4P0660
MUFFLER AS
D5B, D5E
D5B, D5E