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BOOM AR 3904337 - Caterpillar



3904337 BOOM AR Caterpillar parts 308E CR BOOM
Rating:
21
Alternative (cross code) number:
CA3904337
390-4337
3904337
Caterpillar 3904337 BOOM AR

Buy BOOM AR 3904337 Caterpillar genuine, new aftermarket tractor parts with delivery
MINI HYD EXCAVATOR,

Compatible equipment models: 3904337:

MINI HYD EXCAVATOR  308E CR   Caterpillar
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Illustration 1 g02755096
Connections for Primary Steering Solenoids Return.
This diagnostic code is associated with the primary steering solenoids return circuit. The FMI 4 means that the ECM has determined that the voltage for the solenoid return circuit is below normal.The solenoid return circuit provides a return path to the ECM for the primary steering pilot supply solenoid.Conditions that could cause this diagnostic code to be activated are listed below:
The return circuit for the solenoid is shorted to a ground source.
The ECM has failed. An ECM failure is unlikely.Before performing this procedure, inspect the harness connectors that are involved in the circuit. Poor connections can often be the cause of a problem in an electrical circuit. Verify that all connections in the circuit are clean, that all connections are secure, and that all connections are in good condition. If a problem with a connection is found, correct the problem and verify that this diagnostic code is active before performing this procedure.Note: The following test procedure may create other diagnostic codes. Ignore these created diagnostic codes and clear these diagnostic codes when the original diagnostic code has been corrected.Test Step 1. CHECK THE SOLENOID RETURN CIRCUIT FOR A SHORT TO GROUND
Turn the key start switch and the disconnect switch to the OFF position.
Disconnect both primary steering solenoids from the machine harness.
Disconnect the machine harness connectors J1 and J2 from the ECM.
At the machine harness connectors for the ECM, measure the resistance between the solenoids return contact J1-54 (wire T942-PK(Pink)) and the frame ground location. Measure the resistance between the contact J1-54 (wire T942-PK(Pink)) and each of the other J1 and J2 circuits that are used in the ECM.Expected Result:Each resistance measurement is greater than 50 ohms.Results:
OK - Each resistance measurement is greater than 50 ohms. The measurement is not indicating that the solenoid return circuit is shorted to a ground source. Proceed to Test Step 2.
NOT OK - One or more of the resistance measurements are less than 50 ohms. There is a short in the machine harness. The short is between wire T942-PK(Pink)and the circuit with the low-resistance measurement or frame ground.Repair: For information on testing for short circuits and finding short circuits, refer to Testing and Adjusting, "Wiring Harness (Short Circuit) - Test". Repair or replace the machine harness.STOPTest Step 2. CHECK THE STATUS OF THE DIAGNOSTIC CODE
Inspect the harness connectors. Clean the contacts of the harness connectors. Check the wires for damage to the insulation that can be caused by excessive heat, battery acid, or chafing.
Perform a 45 N (10 lb) Pull Test at the connectors that are used in the sensor circuit.
Reconnect all harness connectors. Make sure that the connectors are fully seated and locked.
Turn the disconnect switch and the key start switch to the ON position.
Check the status of the CID 1677 FMI 4 diagnostic code.Expected Result:The CID 1677 FMI 4 diagnostic code is not active.Results:
OK - The CID 1677 FMI 4 is not active. The diagnostic code does not exist currently.Repair: The initial diagnostic code could

Caterpillar SIS machinery equipment:

Caterpillar SIS
  • 308E2CR Mini Hydraulic Excavator CE800001-UP (MACHINE) POWERED BY C3.3B Engine » 390-4337 BOOM AR
  • 308E CR Mini Hydraulic Excavator HEL00001-UP (MACHINE) POWERED BY C3.3B Engine » 390-4337 BOOM AR
  • 308E 2CR Mini Hydraulic Excavator MY200001-UP (MACHINE) » 390-4337 BOOM AR

Caterpillar parts catalog:

Caterpillar parts catalog
308E2CR Mini Hydraulic Excavator CE800001-UP (MACHINE) POWERED BY C3.3B Engine
308E CR Mini Hydraulic Excavator HEL00001-UP (MACHINE) POWERED BY C3.3B Engine
308E 2CR Mini Hydraulic Excavator MY200001-UP (MACHINE)


Parts boom Caterpillar catalog:

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