1R1320 BELT Caterpillar parts
Rating:
Alternative (cross code) number:
CA1R1320
1R-1320
1R1320
CA1R1320
1R-1320
1R1320
Weight: 1236 pounds 560 kg.
Information:
Illustration 1 g01714293
Schematic for the Voltage MonitorThis diagnostic code is associated with the Voltage Monitor. The FMI 06 diagnostic code means that the ECM has determined that the current of the circuit for the voltage monitor is above normal.The possible causes of the diagnostic code are listed below:
The signal circuit of the relay is shorted to ground.
The relay has failed.
The ECM has failed. This situation is unlikely.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. Ensure that the diagnostic code of SPN 5006 FMI 06 is active before performing this procedure.Note: Use the 146-4080 Digital Multimeter for the measurements in this procedure.System Response:The Voltage Fault Indicator will not trigger.Note: Before performing this procedure, verify that all circuit breakers and fuses in the charging circuit and the supply circuit of the ECM system are closed. If a problem with a circuit breaker or a fuse is found, correct the problem. Verify that this diagnostic code is active before performing this procedure.Test Step 1. CHECK THE STATUS OF THE DIAGNOSTIC CODE.
Turn the disconnect switch and the key start switch to the OFF position.
Inspect the harness connectors. Clean the contacts of the harness connectors. Check the wires for damage to the insulation that is caused by excessive heat, corrosion, or chafing.
Perform a 45 N (10 lb) pull test on each of the wires that are associated with the circuit.
Use the Cat Electronic Technician (ET) service tool to perform a "Wiggle Test" on the machine wiring harness. The wiggle test can detect intermittent shorts or opens in the machine wiring harness.
Reconnect all harness connectors. Make sure that the connectors are fully seated. Observe that the clips for each connector are fastened securely.
Turn the disconnect switch and the key start switch to the ON position.
Operate the machine.
Determine if the SPN 5006 FMI 06 diagnostic code is still active.Expected Result:The SPN 5006 FMI 06 diagnostic code is still active.Results:
YES - The SPN 5006 FMI 06 diagnostic code remains active. Proceed to Test Step 2.
NO - The SPN 5006 FMI 06 code 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. Resume normal machine operation.STOPTest Step 2. CHECK THE SIGNAL CIRCUIT OF THE RELAY FOR A SHORT TO GROUND.
Turn the disconnect switch and the key start switch to the OFF position.
Disconnect the controller harness connector from the relay.
Disconnect the controller harness connectors at the ECM.
At the controller harness connector for the ECM, measure the resistance from contact J2-5 (wire C903-BU) to all contacts that are used in the controller harness connectors for the ECM.Expected Result:Each resistance measurement is greater than 5000 ohms. Results:
OK - Each resistance measurement is greater than 5000 ohms. The controller harness is correct. Proceed to Test Step 3.
NOT OK - Each resistance measurement is not greater than 5000 ohms. There
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