8Y5728 LATCH AS Caterpillar parts
307, 307B, 311, 311B, 312B, 315, 318B, 320 L, 320B, 320N, 322 FM L, 322B L, 325, 325 L, 325 LN, 325B, 330, 330 FM L, 330 L, 345B II, 345B L, 350, 375
Rating:
Alternative (cross code) number:
CA8Y5728
8Y-5728
8Y5728
CA8Y5728
8Y-5728
8Y5728
Weight: 0.81 pounds 0 kg.
EXCAVATOR, MINI HYD EXCAVATOR,
Compatible equipment models: 8Y5728:
Number on catalog scheme:
51
For full view, you need register
Information:
The following conditions must exist before any of the above codes will become active:
There are no active 678 or 41 codes.
There are no active 168 codes.
Illustration 1 g06308418
Schematic diagram for the PWM sensors
Table 2
Troubleshooting Test Steps Values Results
1. Inspect Electrical Connectors and Wiring
A. Thoroughly inspect the terminal connections on the P2/J2 and P1/J1 ECM connectors and the PWM sensors.
Refer to Troubleshooting, "Electrical Connectors - Inspect".
B. Perform a 45 N (10 lb) pull test on each of the wires in the ECM connector and the sensor connectors that are associated with the active diagnostic code.
C. Check the screw for the ECM connector for the correct torque of 6 N m (53 lb in).
D. Check the harness for corrosion, abrasion, and pinch points from the sensors to the ECM.
Loose connection or damaged wire
Result: There is a fault in a connector or the wiring.
Repair: Repair any faulty connectors or replace the wiring harness. Ensure that all the seals are properly in place and ensure that the connectors are correctly coupled.
Use the electronic service tool to clear all logged diagnostic codes and verify that the repair eliminates the fault.
Result: All connectors, pins, and sockets are correctly coupled and/or inserted. The harness is free of corrosion, abrasion, and pinch points.
Proceed to Test Step 2.
2. Check For Active Diagnostic Codes
A. Turn the keyswitch to the OFF position.
B. Connect the electronic service tool to the diagnostic connector.
C. Turn the keyswitch to the ON position. Wait at least 10 seconds for activation of the diagnostic codes.
D. Verify if any of the diagnostic codes that are listed in Table 1 are active.
E. Turn the keyswitch to the OFF position.
Diagnostic codes
Result: There are no active diagnostic codes for the PWM sensors.
Repair: If there are logged diagnostic codes for the PWM sensors, the fault may be intermittent.
Refer to Troubleshooting, "Electrical Connectors - Inspect" to identify intermittent faults.
Result: A diagnostic code that is listed in Table 1 is active.
Proceed to Test Step 3.
3. Check the Supply Voltage at the Sensor Connector
A. Turn the keyswitch to the OFF position.
B. Disconnect the connector for the suspect sensor.
C. Turn the keyswitch to the ON position. Do not start the engine.
D. Measure the voltage between the supply terminal and the ground terminal on the harness connector for the suspect sensor. The voltage measurement should be 8.0 0.2 VDC.
E. Turn the keyswitch to the OFF position.
F. Reconnect the sensor.
8.0 0.2 V
Result: The voltage measurement is not within the expected range. The fault is in the supply wire or the ground wire in the engine wiring harness.
Repair: Repair the faulty wiring or replace the faulty wiring.
Use the electronic service tool to clear all logged diagnostic codes. Return the engine to service.
Result: The voltage measurement is within the expected range - The correct supply voltage is reaching the sensor.
Proceed to Test Step 4.
4. Check the Type of Diagnostic Code that is Active
A. Turn the keyswitch to the ON position. Wait at least 10 seconds for activation of the diagnostic codes.
B. Use the electronic service tool to
There are no active 678 or 41 codes.
There are no active 168 codes.
Illustration 1 g06308418
Schematic diagram for the PWM sensors
Table 2
Troubleshooting Test Steps Values Results
1. Inspect Electrical Connectors and Wiring
A. Thoroughly inspect the terminal connections on the P2/J2 and P1/J1 ECM connectors and the PWM sensors.
Refer to Troubleshooting, "Electrical Connectors - Inspect".
B. Perform a 45 N (10 lb) pull test on each of the wires in the ECM connector and the sensor connectors that are associated with the active diagnostic code.
C. Check the screw for the ECM connector for the correct torque of 6 N m (53 lb in).
D. Check the harness for corrosion, abrasion, and pinch points from the sensors to the ECM.
Loose connection or damaged wire
Result: There is a fault in a connector or the wiring.
Repair: Repair any faulty connectors or replace the wiring harness. Ensure that all the seals are properly in place and ensure that the connectors are correctly coupled.
Use the electronic service tool to clear all logged diagnostic codes and verify that the repair eliminates the fault.
Result: All connectors, pins, and sockets are correctly coupled and/or inserted. The harness is free of corrosion, abrasion, and pinch points.
Proceed to Test Step 2.
2. Check For Active Diagnostic Codes
A. Turn the keyswitch to the OFF position.
B. Connect the electronic service tool to the diagnostic connector.
C. Turn the keyswitch to the ON position. Wait at least 10 seconds for activation of the diagnostic codes.
D. Verify if any of the diagnostic codes that are listed in Table 1 are active.
E. Turn the keyswitch to the OFF position.
Diagnostic codes
Result: There are no active diagnostic codes for the PWM sensors.
Repair: If there are logged diagnostic codes for the PWM sensors, the fault may be intermittent.
Refer to Troubleshooting, "Electrical Connectors - Inspect" to identify intermittent faults.
Result: A diagnostic code that is listed in Table 1 is active.
Proceed to Test Step 3.
3. Check the Supply Voltage at the Sensor Connector
A. Turn the keyswitch to the OFF position.
B. Disconnect the connector for the suspect sensor.
C. Turn the keyswitch to the ON position. Do not start the engine.
D. Measure the voltage between the supply terminal and the ground terminal on the harness connector for the suspect sensor. The voltage measurement should be 8.0 0.2 VDC.
E. Turn the keyswitch to the OFF position.
F. Reconnect the sensor.
8.0 0.2 V
Result: The voltage measurement is not within the expected range. The fault is in the supply wire or the ground wire in the engine wiring harness.
Repair: Repair the faulty wiring or replace the faulty wiring.
Use the electronic service tool to clear all logged diagnostic codes. Return the engine to service.
Result: The voltage measurement is within the expected range - The correct supply voltage is reaching the sensor.
Proceed to Test Step 4.
4. Check the Type of Diagnostic Code that is Active
A. Turn the keyswitch to the ON position. Wait at least 10 seconds for activation of the diagnostic codes.
B. Use the electronic service tool to
Caterpillar parts catalog:
Parts latch Caterpillar catalog:
305.5, 305.5E, 306, 306E, 307, 307B, 307C, 307D, 308C, 308D, 308E CR, 308E SR, 311, 311B, 311C, 311D LRR, 311F LRR, 312C L, 312D, 312D L, 312D2, 312D2 GC, 312D2 L, 312E, 312E L, 313D, 313D2, 313D2 LGP...
1390, 16, 215, 225, 225D, 227, 229, 2290, 229D, 231D, 235, 235B, 235C, 235D, 2390, 2391, 2491, 2590, 313B, 320 L, 320B, 320B FM LL, 320C FM, 320D, 320D FM, 320N, 322, 322 FM L, 322 LN, 322B L, 322C, 3...
307, 307B, 307C, 308C, 311C, 312, 314C, 314D CR, 314D LCR, 315, 317, 320N, 322, 330, 375, 375 L, 5080
312D, 312D L, 312E, 312E L, 315D L, 316E L, 318C, 318D L, 318D2 L, 318E L, 319D L, 319D LN, 320D, 320D FM, 320D FM RR, 320D GC, 320D L, 320D LN, 320D LRR, 320D RR, 320D2, 320D2 GC, 320D2 L, 320E, 320E...
120G, 12G, 130G, 140G, 14G, 16G, 215, 215B, 215C, 225, 227, 235, 235C, 245, 311, 375, 375 L, 508, 5080, 517, 518, 518C, 527, 554, 574, 574B, 769C, 771C, 772B, 773B, 775B, 776C, 777, 784B, 785, 785B, 7...
320C, 375, 375 L, 385B, 385C, 385C FS, 385C L, 385C L MH, 5080, 5090B, 931C II, CB-534D, CB-564D, D3B
1318932
LATCH
320B, 320B L, 320B U, 320C, 320C FM, 320C L, 320D, 320D FM, 320D FM RR, 320D GC, 320D L, 320D LN, 320D LRR, 320D RR, 320D2, 320D2 GC, 320D2 L, 320E, 320E L, 320E LN, 320E LRR, 320E RR, 321B, 321C, 321...
320B, 320B L, 320B U, 320C, 320C FM, 320C L, 320D, 320D FM, 320D FM RR, 320D GC, 320D L, 320D LN, 320D LRR, 320D RR, 320D2, 320D2 GC, 320D2 L, 320E, 320E L, 320E LN, 320E LRR, 320E RR, 321B, 321C, 321...
1267671
LATCH AS
322 FM L, 322B L, 325B L, 330, 330B L, 345B, 345B II, 345B II MH, 345B L, 350, 375 L, 5080, 5110B, W345B II
322 FM L, 322B L, 325B L, 330, 330B L, 345B, 345B II, 345B II MH, 345B L, 350, 375 L, 5080, 5110B, W345B II
1295164
LATCH
322 FM L, 322B L, 325B L, 330, 330B L, 345B, 345B II, 345B II MH, 345B L, 5110B, M325B, W330B, W345B II
322 FM L, 322B L, 325B L, 330, 330B L, 345B, 345B II, 345B II MH, 345B L, 5110B, M325B, W330B, W345B II
0876035
LATCH
375, 375 L
375, 375 L
7Y7943
LATCH
375, 375 L
375, 375 L
6W0382
LATCH
375, 375 L
375, 375 L
2343402
LATCH AS
312E, 312E L, 316E L, 318B, 318E L, 320E L, 320E LRR, 323E L, 324E, 324E L, 324E LN, 329E, 329E L, 329E LN, 336E, 336E L, 336E LH, 336E LN, 336F L, 349E, 349E L, 349E L VG, 349F L, 980H
312E, 312E L, 316E L, 318B, 318E L, 320E L, 320E LRR, 323E L, 324E, 324E L, 324E LN, 329E, 329E L, 329E LN, 336E, 336E L, 336E LH, 336E LN, 336F L, 349E, 349E L, 349E L VG, 349F L, 980H
307, 307B, 311, 311B, 312D, 312D L, 312E, 312E L, 315, 315D L, 316E L, 318B, 318E L, 319D L, 319D LN, 320 L, 320B, 320D, 320D L, 320D LRR, 320D RR, 320E, 320E L, 320E LN, 320E LRR, 320E RR, 320N, 322 ...
2154560
LATCH AS
307B
307B
302.5
1273986
LATCH AS
313B, 321B
313B, 321B
1273970
LATCH AS
313B, 321B
313B, 321B
2249163
LATCH AS
307C
307C
1751746
LATCH AS
306, 306E, 307C, 307D, 307E
306, 306E, 307C, 307D, 307E
1626172
LATCH
305.5, 305.5E, 306, 306E, 307B, 307C, 308C, 308D, 311B, 311C, 311D LRR, 312B, 312C L, 312D, 312D L, 312D2, 312D2 GC, 312D2 L, 313D, 313D2, 313D2 LGP, 314C, 904B, 904H, 910G
305.5, 305.5E, 306, 306E, 307B, 307C, 308C, 308D, 311B, 311C, 311D LRR, 312B, 312C L, 312D, 312D L, 312D2, 312D2 GC, 312D2 L, 313D, 313D2, 313D2 LGP, 314C, 904B, 904H, 910G
2160056
LATCH AS
303, 303.5, 304, 304.5, 305
303, 303.5, 304, 304.5, 305
1243976
LATCH AS-RH
311B, 318B, 320B, 325B, 345B II
311B, 318B, 320B, 325B, 345B II
1243975
LATCH AS
311B, 318B, 320B, 325B, 345B II
311B, 318B, 320B, 325B, 345B II