1789558 PLATE-WARNING Caterpillar parts
30/30, DEUCE
Rating:
Alternative (cross code) number:
CA1789558
178-9558
1789558
CA1789558
178-9558
1789558
Weight: 0.03 pounds 0 kg.
TRACK-TYPE TRACTOR,
Number on catalog scheme:
3
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Information:
Use this procedure to troubleshoot the electrical system if a problem is suspected with the cooling fan speed sensor. Also use this procedure if the diagnostic code in Table 1 is active or easily repeated.
Table 1
Diagnostic Codes Table
Code Code Description Comments
E1363 (1) Low Engine Cooling Fan Speed The code is logged.
544-2 Engine Cooling Fan Speed Sensor : Erratic, Intermittent, or Incorrect The code is logged.
544-8 Engine Cooling Fan Speed Sensor : Abnormal Frequency, Pulse Width, or Period The code is logged. The engine cooling fan speed sensor provides a signal to the Electronic Control Module (ECM). The ECM controls fan speed by varying the current to the fan control solenoid.The engine cooling fan speed sensor receives a supply voltage of 8.0 0.5 VDC from the ECM. The sensor outputs a frequency that is directly proportional to fan speed. The sensor generates a signal pulse for each revolution of the fan. The output frequency varies between 5 Hz to 180 Hz over the speed range between 50 rpm and 1800 rpm.
Illustration 1 g02176931
Schematic for the fan speed sensor
Table 2
Troubleshooting Test Steps Values Results
1. Check the Status of the Engine Fan Speed
A. Turn the keyswitch to the OFF position.
B. Connect Caterpillar Electronic Technician (ET) to the service tool connector.
C. Turn the keyswitch to the ON position.
D. Access the "Fan Override Test" under the "Diagnostics" menu.
E. Start the "Fan Override Test" on Cat ET. Set the fan speed to 500 rpm.
F. Use a 351-8635 Tachometer Kit to determine the actual speed of the fan.
G. Compare the engine fan speed that is reported by Cat ET to the actual engine fan speed that is reported by the photo-tachometer.
H. Deactivate the "Fan Override Test".
I. Turn the keyswitch to the OFF position.
Engine Fan Speed
Result: The engine fan speed is within 50 rpm.
Repair: The sensor is operating correctly. There may be an intermittent electrical problem in a connector or in the harness. If an intermittent problem is suspected, refer to Troubleshooting, "Electrical Connectors - Inspect".
STOP
Result: The engine fan speed is not within 50 rpm.
Proceed to Test Step 2.
2. Check the Sensor Supply Voltage at the Sensor Connector
A. Turn the keyswitch to the OFF position.
B. Disconnect the sensor connector from the wiring harness.
C. Turn the keyswitch to the ON position.
D. Measure the sensor supply voltage between terminal 2 and terminal 3.
Connector
Result: The supply voltage is reaching the sensor.
Proceed to Test Step 3.
Result: The supply voltage is not reaching the sensor.
Repair: Refer to Troubleshooting, "Sensor Supply - Test".
STOP
3. Check the Signal Frequency at the Sensor Connector
A. Turn the keyswitch to the OFF position.
B. Remove the wire from terminal 1 on the sensor side of the connector. Connect the sensor connector.
C. Turn the keyswitch to the ON position.
D. Access the "Fan Override Test" under the "Diagnostics" menu on Cat ET.
E. Start the "Fan Override Test" on Cat ET. Set the fan speed to 800 rpm.
F. Use a multimeter to measure the frequency between the signal wire from the sensor and engine ground.
G. Deactivate the "Fan
Table 1
Diagnostic Codes Table
Code Code Description Comments
E1363 (1) Low Engine Cooling Fan Speed The code is logged.
544-2 Engine Cooling Fan Speed Sensor : Erratic, Intermittent, or Incorrect The code is logged.
544-8 Engine Cooling Fan Speed Sensor : Abnormal Frequency, Pulse Width, or Period The code is logged. The engine cooling fan speed sensor provides a signal to the Electronic Control Module (ECM). The ECM controls fan speed by varying the current to the fan control solenoid.The engine cooling fan speed sensor receives a supply voltage of 8.0 0.5 VDC from the ECM. The sensor outputs a frequency that is directly proportional to fan speed. The sensor generates a signal pulse for each revolution of the fan. The output frequency varies between 5 Hz to 180 Hz over the speed range between 50 rpm and 1800 rpm.
Illustration 1 g02176931
Schematic for the fan speed sensor
Table 2
Troubleshooting Test Steps Values Results
1. Check the Status of the Engine Fan Speed
A. Turn the keyswitch to the OFF position.
B. Connect Caterpillar Electronic Technician (ET) to the service tool connector.
C. Turn the keyswitch to the ON position.
D. Access the "Fan Override Test" under the "Diagnostics" menu.
E. Start the "Fan Override Test" on Cat ET. Set the fan speed to 500 rpm.
F. Use a 351-8635 Tachometer Kit to determine the actual speed of the fan.
G. Compare the engine fan speed that is reported by Cat ET to the actual engine fan speed that is reported by the photo-tachometer.
H. Deactivate the "Fan Override Test".
I. Turn the keyswitch to the OFF position.
Engine Fan Speed
Result: The engine fan speed is within 50 rpm.
Repair: The sensor is operating correctly. There may be an intermittent electrical problem in a connector or in the harness. If an intermittent problem is suspected, refer to Troubleshooting, "Electrical Connectors - Inspect".
STOP
Result: The engine fan speed is not within 50 rpm.
Proceed to Test Step 2.
2. Check the Sensor Supply Voltage at the Sensor Connector
A. Turn the keyswitch to the OFF position.
B. Disconnect the sensor connector from the wiring harness.
C. Turn the keyswitch to the ON position.
D. Measure the sensor supply voltage between terminal 2 and terminal 3.
Connector
Result: The supply voltage is reaching the sensor.
Proceed to Test Step 3.
Result: The supply voltage is not reaching the sensor.
Repair: Refer to Troubleshooting, "Sensor Supply - Test".
STOP
3. Check the Signal Frequency at the Sensor Connector
A. Turn the keyswitch to the OFF position.
B. Remove the wire from terminal 1 on the sensor side of the connector. Connect the sensor connector.
C. Turn the keyswitch to the ON position.
D. Access the "Fan Override Test" under the "Diagnostics" menu on Cat ET.
E. Start the "Fan Override Test" on Cat ET. Set the fan speed to 800 rpm.
F. Use a multimeter to measure the frequency between the signal wire from the sensor and engine ground.
G. Deactivate the "Fan
Caterpillar parts catalog:
Parts plate Caterpillar catalog:
120H, 120H ES, 120H NA, 120K, 120K 2, 12H, 12K, 12M, 12M 2, 12M 3, 12M 3 AWD, 135H, 135H NA, 140G, 140K, 140K 2, 140M, 140M 2, 140M 3, 140M 3 AWD, 160K, 160M, 160M 2, 160M 3, 160M 3 AWD, 2290, 2390, 2...
120H, 120H ES, 120H NA, 135H, 135H NA, 213B, 214B, 30/30, 3114, 3116, 3126, 3126B, 3126E, 320 L, 320B, 322B L, 322B LN, 322C, 322C FM, 325, 325B, 325B L, 35, 446, 446B, 446D, 45, 525B, 533, 535B, 539,...
120H, 120H ES, 120H NA, 12H, 135H, 135H NA, 214B, 30/30, 3114, 3116, 3126, 3126B, 3126E, 3176, 3176B, 320 L, 320B, 322 FM L, 322 LN, 322B L, 322B LN, 322C, 322C FM, 324D, 324D FM, 324D FM LL, 324D L, ...
120H, 120H ES, 120H NA, 12H, 12H ES, 12H NA, 135H, 135H NA, 140H, 140H ES, 140H NA, 143H, 14H NA, 160H, 160H ES, 160H NA, 163H NA, 16H NA, 24H, 30/30, 3116, 3126, 3126B, 3176B, 3176C, 3196, 3304, 3306...
120G, 12F, 12G, 130G, 140, 141, 14E, 14G, 153, 16, 163, 16G, 172, 173B, 183, 183B, 184, 191, 193, 30/30, 416, 416B, 426B, 428, 428B, 438B, 446, 46, 508, 515, 517, 518, 525, 525D, 527, 528, 535D, 545D,...
1090, 1190, 1190T, 120G, 120H, 120H ES, 120H NA, 120K, 120K 2, 120M, 1290T, 12G, 12H, 12H ES, 12H NA, 12K, 12M, 130G, 135H, 135H NA, 1390, 140G, 140H, 140H ES, 140H NA, 140K, 140K 2, 140M, 143H, 14G, ...
30/30, 428, 5130, 65C, 75C, 75D, 85C, 85D, 918F, 924F, 928F, 928G, 928H, 928HZ, AP-1000, AP-1000B, AP-1055B, AP-650B, AP-800C, AP-800D, AP-900B, BG-225B, BG-225C, BG-2455C, BG-245C, D4H, D4H XL, D4HTS...
30/30, 428, 5130, 65C, 75C, 75D, 85C, 85D, 918F, 924F, 928G, 928H, 928HZ, 938F, 938G, 938G II, 988F, 988F II, AP-1000, AP-1000B, AP-1055B, AP-650B, AP-800C, AP-800D, AP-900B, BG-225B, BG-225C, BG-2455...
30/30, 572R, 572R II, 578, 583R, 583T, 587R, 587T, 611, 615, 615C, 637E, 69D, 735, 735B, 740, 740B, 768C, 769C, 769D, 770, 770G, 770G OEM, 771C, 771D, 772, 772G, 772G OEM, 776C, 776D, 777B, 777D, 777F...
30/30, 572R, 572R II, 578, 583R, 583T, 587R, 587T, 611, 615, 615C, 814B, 814F, 814F II, 815B, 815F, 815F II, 816F, 816F II, 966D, 966F, 966F II, 966G, 966G II, 970F, 972G, 972G II, 972H, 972K, 972M, 9...
30/30, 572R, 572R II, 578, 583R, 583T, 587R, 587T, 611, 615C, 814B, 814F, 815B, 815F, 816F, 966D, 966F, 966F II, 970F, 980C, 980F, 980F II, 980G, 980G II, 980H, 980K, D250E, D250E II, D25D, D300E, D30...
30/30, 517, 527, D4H, D4H XL, D4HTSK II, D4HTSK III, D5H, D5H XL, D5HTSK II, DEUCE
1283121
PLATE-THRUST
30/30, DEUCE
30/30, DEUCE
1283120
PLATE-THRUST
30/30, DEUCE
30/30, DEUCE
1247229
PLATE-RETAINER
30/30, DEUCE
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1789561
PLATE-WARNING
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1789560
PLATE-WARNING
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1789557
PLATE-WARNING
30/30, DEUCE
30/30, DEUCE
7V5627
PLATE AS
10-20B, 30/30, 554, 824G, 825G, 950F, 950F II, 960F, 980C, 988H, AP-1000B, AP-200B, BG-225C, BG-245C, CB-334D, CB-334E, CB-335D, CB-534C, CP-433C, CP-433E, CP-573E, CP-663E, CP-76, CS-323C, CS-423E, C...
10-20B, 30/30, 554, 824G, 825G, 950F, 950F II, 960F, 980C, 988H, AP-1000B, AP-200B, BG-225C, BG-245C, CB-334D, CB-334E, CB-335D, CB-534C, CP-433C, CP-433E, CP-573E, CP-663E, CP-76, CS-323C, CS-423E, C...
1599380
PLATE
30/30, DEUCE
30/30, DEUCE
1451203
PLATE AS
30/30, DEUCE
30/30, DEUCE
1311223
PLATE AS
30/30, DEUCE
30/30, DEUCE
1267088
PLATE
30/30, DEUCE
30/30, DEUCE
1291902
PLATE-SEPARATOR
30/30, DEUCE
30/30, DEUCE