2756724 HARNESS AS-SENSOR Caterpillar parts
323D L, 323D LN
Rating:
Alternative (cross code) number:
CA2756724
275-6724
2756724
CA2756724
275-6724
2756724
Weight: 4 pounds 2 kg.
EXCAVATOR,
Number on catalog scheme:
6
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Information:
Illustration 1 g02246853
Schematic for the Fuel Level SensorThis diagnostic code is associated with the Fuel Level Sensor. This diagnostic code is recorded when the ECM reads the signal from the sensor (447-PK) as being shorted to the +battery or open. The signal wire (447-PK) connects to contact J1-37 of the ECM.Possible causes of this diagnostic code are listed below:
The return circuit is open.
The signal circuit is open or the sensor is disconnected.
The signal circuit is shorted to the +battery.
The sensor has failed.
The ECM has failed. A failure of the Chassis ECM is unlikely.Note: 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. Clear any created diagnostic codes after the original diagnostic code has been corrected.System Response:A Level 1 warning will be generated.Test Step 1. CHECK FOR POWER AT THE SENSOR.
Do not disconnect the harness connector from the sensor.
At the back of the harness connector for the sensor, insert a multimeter probe along contact 1 (wire 799-WH) for the voltage supply.
Turn the key start switch and the disconnect switch to the ON position.
Measure the voltage from contact 1 (wire 799-WH) to contact 2 (wire 202-BK).Expected Result:The voltage is 10 0.2 VDC.Results:
OK - The voltage is 10 0.2 VDC. Proceed to Test Step 2.
NOT OK - The voltage is not 10 0.2 VDC. The circuit is open. Repair: Repair the machine harness or replace the machine harness.STOPTest Step 2. CHECK FOR AN OPEN IN THE SIGNAL CIRCUIT.
The disconnect switch and the key start switch remain in the OFF position.
Disconnect the machine harness J1 and J2 connectors from the ECM.
At the machine harness connector for the sensor, install a jumper wire from contact 3 (wire 447-PK) to contact 2 (wire 202-BK).
At the J1 machine harness connector for the ECM, measure the resistance from contact J1-37 (wire 447-PK) to contact J1-13 (wire 202-BK).Expected Result:The resistance measures less than 5 ohms.Results:
OK - The resistance measures less than 5 ohms. Proceed to Test Step 3.
NOT OK - The resistance measures greater than 5 ohms.Repair: There is an open in the signal circuit. Repair the machine harness or replace the machine harness.STOPTest Step 3. CHECK THE SIGNAL CIRCUIT FOR A SHORT.
Turn the key start switch and the disconnect switch to the OFF position.
Insert the multimeter probes into the back of the ECM connector along J1-37 (wire 447-PK) and J1-13 (wire 202-BK).
Turn the disconnect switch and the key start switch to the ON position.
Monitor the signal of the sensor with the digital multimeter.Note: When the fuel tank is full, the voltage output of the sensor is approximately 4.5
Caterpillar parts catalog:
Parts harness Caterpillar catalog:
2594940
HARNESS AS-WIRING
311C, 311D LRR, 312C L, 312D, 312D L, 312D2, 312D2 L, 313D2 LGP, 315C, 315D L, 318C, 318D2 L, 319D, 319D L, 319D LN, 320C, 320C FM, 320D, 320D FM, 320D L, 320D LN, 320D2, 320D2 L, 323D L, 323D LN, 323...
311C, 311D LRR, 312C L, 312D, 312D L, 312D2, 312D2 L, 313D2 LGP, 315C, 315D L, 318C, 318D2 L, 319D, 319D L, 319D LN, 320C, 320C FM, 320D, 320D FM, 320D L, 320D LN, 320D2, 320D2 L, 323D L, 323D LN, 323...
2594887
HARNESS AS-WIRING
311D LRR, 312D, 312D L, 312D2, 312D2 L, 313D2 LGP, 315D L, 318D2 L, 319D, 319D L, 319D LN, 320D, 320D FM, 320D L, 320D LN, 320D2, 320D2 L, 323D L, 323D LN, 323D SA, 324D, 324D FM, 324D FM LL, 324D L, ...
311D LRR, 312D, 312D L, 312D2, 312D2 L, 313D2 LGP, 315D L, 318D2 L, 319D, 319D L, 319D LN, 320D, 320D FM, 320D L, 320D LN, 320D2, 320D2 L, 323D L, 323D LN, 323D SA, 324D, 324D FM, 324D FM LL, 324D L, ...
2484754
HARNESS AS-ENGINE
311C, 312B, 312B L, 312C, 312C L, 314C, 315B, 315B L, 315C, 317B LN, 318B, 318C, 319C, 320B, 320B U, 320C, 320C FM, 320C L, 320D, 320D LRR, 321B, 321C, 322B L, 322B LN, 322C, 322C FM, 323D L, 323D LN,...
311C, 312B, 312B L, 312C, 312C L, 314C, 315B, 315B L, 315C, 317B LN, 318B, 318C, 319C, 320B, 320B U, 320C, 320C FM, 320C L, 320D, 320D LRR, 321B, 321C, 322B L, 322B LN, 322C, 322C FM, 323D L, 323D LN,...
311C, 312B, 312B L, 312C, 312C L, 314C, 315B, 315B L, 315C, 317B LN, 318B, 318C, 319C, 320B, 320B U, 320C, 320C FM, 320C L, 320D, 320D LRR, 321B, 321C, 322B L, 322B LN, 322C, 322C FM, 323D L, 323D LN,...
1786640
HARNESS AS-WIRING
312C, 315C, 318C, 319C, 320C, 320C FM, 320D, 320D LRR, 323D L, 323D LN
312C, 315C, 318C, 319C, 320C, 320C FM, 320D, 320D LRR, 323D L, 323D LN
1986223
HARNESS AS-LIGHTING
312C, 312D, 315C, 315D L, 318C, 319C, 319D, 320C, 322C, 323D L, 323D LN, 324D, 324D LN, 325C, 325D, 325D L, 329D L, 330C, 330C L, 330D, 330D L, 330D LN, 330D MH, 336D L, 336D LN, 345C, 345C L, 345D, 3...
312C, 312D, 315C, 315D L, 318C, 319C, 319D, 320C, 322C, 323D L, 323D LN, 324D, 324D LN, 325C, 325D, 325D L, 329D L, 330C, 330C L, 330D, 330D L, 330D LN, 330D MH, 336D L, 336D LN, 345C, 345C L, 345D, 3...
2510543
HARNESS AS-CONSOLE
307D, 308D, 311D LRR, 312D, 312D L, 314D LCR, 315D L, 319D, 320D, 320D FM, 320D FM RR, 320D L, 320D LN, 320D LRR, 320D RR, 321D LCR, 323D L, 323D LN, 324D, 324D FM, 324D FM LL, 324D L, 324D LN, 325D, ...
307D, 308D, 311D LRR, 312D, 312D L, 314D LCR, 315D L, 319D, 320D, 320D FM, 320D FM RR, 320D L, 320D LN, 320D LRR, 320D RR, 321D LCR, 323D L, 323D LN, 324D, 324D FM, 324D FM LL, 324D L, 324D LN, 325D, ...
2359005
HARNESS AS-HEATER & AIR COND
307D, 311D LRR, 311F LRR, 312D, 312D L, 312D2, 312D2 GC, 312D2 L, 313D, 313D2, 313D2 LGP, 315D L, 318D L, 318D2 L, 319D, 319D L, 319D LN, 320D, 320D FM, 320D FM RR, 320D GC, 320D L, 320D LN, 320D LRR,...
307D, 311D LRR, 311F LRR, 312D, 312D L, 312D2, 312D2 GC, 312D2 L, 313D, 313D2, 313D2 LGP, 315D L, 318D L, 318D2 L, 319D, 319D L, 319D LN, 320D, 320D FM, 320D FM RR, 320D GC, 320D L, 320D LN, 320D LRR,...
2595327
HARNESS AS-LIGHTING
320D, 320D FM, 320D FM RR, 320D L, 320D LN, 320D2, 320D2 L, 320E, 320E L, 320E LN, 320E LRR, 320E RR, 323D L, 323D LN, 323D SA, 323D2 L, 323E L
320D, 320D FM, 320D FM RR, 320D L, 320D LN, 320D2, 320D2 L, 320E, 320E L, 320E LN, 320E LRR, 320E RR, 323D L, 323D LN, 323D SA, 323D2 L, 323E L
2381595
HARNESS AS-SWITCH
320D, 320D FM, 320D L, 320D LN, 320D2, 320D2 L, 320E, 320E L, 320E LN, 323D L, 323D LN, 323D SA, 323D2 L, 323E L, 324D, 324D L, 324D LN, 324E L, 324E LN, 325D, 325D L, 329D, 329D L, 329D LN, 329E, 329...
320D, 320D FM, 320D L, 320D LN, 320D2, 320D2 L, 320E, 320E L, 320E LN, 323D L, 323D LN, 323D SA, 323D2 L, 323E L, 324D, 324D L, 324D LN, 324E L, 324E LN, 325D, 325D L, 329D, 329D L, 329D LN, 329E, 329...
2677740
HARNESS AS-SOLENOID
323D L, 323D LN, 323D SA
323D L, 323D LN, 323D SA
2382349
HARNESS AS-SWITCH
320D, 320D LRR, 323D L, 323D LN
320D, 320D LRR, 323D L, 323D LN
323D L, 323D LN
2917560
HARNESS AS-CHASSIS
320D, 320D FM, 320D FM RR, 320D GC, 320D L, 320D LN, 320D LRR, 320D RR, 320D2, 320D2 GC, 320D2 L, 323D L, 323D LN, 323D SA, 323D2 L, 324D, 324D L, 325D, 325D L, 326D L, 328D LCR, 329D, 329D L, 330D, 3...
320D, 320D FM, 320D FM RR, 320D GC, 320D L, 320D LN, 320D LRR, 320D RR, 320D2, 320D2 GC, 320D2 L, 323D L, 323D LN, 323D SA, 323D2 L, 324D, 324D L, 325D, 325D L, 326D L, 328D LCR, 329D, 329D L, 330D, 3...
2678073
HARNESS AS-CHASSIS
320D, 320D LRR, 324D, 325D, 325D L, 328D LCR, 330D, 330D L
320D, 320D LRR, 324D, 325D, 325D L, 328D LCR, 330D, 330D L
324D, 324D LN, 325D, 325D L, 329D L, M325D L MH, M325D MH
2891220
HARNESS AS-AUXILIARY
323D L, 324D, 324D LN, 325D
323D L, 324D, 324D LN, 325D
2891153
HARNESS AS-AUXILIARY
323D L, 324D, 324D LN, 325D
323D L, 324D, 324D LN, 325D
2678018
HARNESS AS-VALVE
324D, 324D L, 324D LN, 325D, 325D L, 329D L, 329D LN
324D, 324D L, 324D LN, 325D, 325D L, 329D L, 329D LN
2904312
HARNESS AS-SWITCH
323D L, 324D, 324D LN, 325D
323D L, 324D, 324D LN, 325D
2865490
HARNESS AS-LIGHTING
324D, 324D LN, 325D, 325D L, 329D LN
324D, 324D LN, 325D, 325D L, 329D LN