3256994 CLIP Caterpillar parts
330D L, 330D MH, 336D, 336D L, 336D2, 336D2 L, 340D L, 340D2 L, 349E, 349E L, 349E L HVG, 349E L VG, 349F L, 3516C, 773G, 773G OEM, 775G, 775G OEM, 777G, 797F, 844K, 854K, 973D, 990K, 992K, 993K, C11,...
Rating:
Alternative (cross code) number:
CA3256994
325-6994
3256994
CA3256994
325-6994
3256994
Weight: 0.04 pounds 0 kg.
EXCAVATOR, WHEEL LOADER,
Compatible equipment models: 3256994:
Information:
System Operation Description:This procedure covers the following diagnostic codes:
1719-3 Generator Output Power Sensor : Voltage Above Normal
1719-9 Generator Output Power Sensor : Abnormal Update Rate
1719-12 Generator Output Power Sensor : FailureThe control system monitors the generator's output power in order to accurately control the air/fuel ratio. The control system uses a load signal from one of the following sources in order to monitor the generator's output power:
Electronic Modular Control Panel II+ (EMCP II+)
Programmable Logic Controller (PLC)
WattmeterThe PLC and the wattmeter are also called power sensors.If the generator is equipped with the EMCP II+, the master Electronic Control Module (ECM) receives the load signal from the Generator Set Control + (GSC+) via the Cat Data Link. If the generator is not equipped with the EMCP II+, the master Electronic Control Module (ECM) receives the load signal from a power sensor via terminal J1-25. The load signal from the power sensor is an analog voltage. The load signal increases from 0 VDC to 4.8 VDC as the generator's output increases to the maximum output.On powerup, the master ECM requests information on the generator's load from the GSC+ via the Cat Data Link. If two seconds elapse and the master ECM does not receive a response from the GSC+, the master ECM assumes that a load signal will appear on terminal J1-25 when the engine is at rated speed and the calculated load is greater than 30 percent. The master ECM generates a 1719-3 code if the following conditions exist:
The engine is at rated speed.
The calculated load is greater than 30 percent.
A load signal is not present on terminal J1-25.
Illustration 1 g01114311
Schematic of the power sensor's input with EMCP II+For the actual wiring, refer to the generator's schematic diagram.
Illustration 2 g01303172
Schematic of the wiring for the load signal. For the actual wiring, refer to the generator's schematic diagram. The potentiometer is optional. For further information, refer to Troubleshooting, "Generator Output Power Sensor - Set".Test Step 1. Inspect the Electrical Connectors and Wiring
Remove the electrical power from the engine.Note: For the following steps, refer to Troubleshooting, "Electrical Connectors - Inspect".
Thoroughly inspect the following components:
J1/P1 connectors
J6/P6 connectors
The wiring and the connections between the master ECM and the GSC+ (if equipped)
The wiring and the connections between the electronic control module and the power sensor (if equipped)
Check the torque of the allen head screw for the ECM connectors.
Perform a 45 N (10 lb) pull test on each of the wires that are associated with the circuit for the power sensor.
Check the harness and wiring for abrasion and for pinch points between the power sensor and the electronic control module.Expected Result:All connectors, pins, and sockets are connected properly. The connectors and the wiring do not have corrosion, abrasion, or pinch points.Results:
OK - The components are in good condition with proper connections. Proceed to Test Step 2.
Not OK - The components are not in good condition and/or at least one connection is improper.Repair: Perform the necessary repairs and/or replace parts, if necessary.STOPTest Step 2. Check for a Diagnostic Code
Connect
1719-3 Generator Output Power Sensor : Voltage Above Normal
1719-9 Generator Output Power Sensor : Abnormal Update Rate
1719-12 Generator Output Power Sensor : FailureThe control system monitors the generator's output power in order to accurately control the air/fuel ratio. The control system uses a load signal from one of the following sources in order to monitor the generator's output power:
Electronic Modular Control Panel II+ (EMCP II+)
Programmable Logic Controller (PLC)
WattmeterThe PLC and the wattmeter are also called power sensors.If the generator is equipped with the EMCP II+, the master Electronic Control Module (ECM) receives the load signal from the Generator Set Control + (GSC+) via the Cat Data Link. If the generator is not equipped with the EMCP II+, the master Electronic Control Module (ECM) receives the load signal from a power sensor via terminal J1-25. The load signal from the power sensor is an analog voltage. The load signal increases from 0 VDC to 4.8 VDC as the generator's output increases to the maximum output.On powerup, the master ECM requests information on the generator's load from the GSC+ via the Cat Data Link. If two seconds elapse and the master ECM does not receive a response from the GSC+, the master ECM assumes that a load signal will appear on terminal J1-25 when the engine is at rated speed and the calculated load is greater than 30 percent. The master ECM generates a 1719-3 code if the following conditions exist:
The engine is at rated speed.
The calculated load is greater than 30 percent.
A load signal is not present on terminal J1-25.
Illustration 1 g01114311
Schematic of the power sensor's input with EMCP II+For the actual wiring, refer to the generator's schematic diagram.
Illustration 2 g01303172
Schematic of the wiring for the load signal. For the actual wiring, refer to the generator's schematic diagram. The potentiometer is optional. For further information, refer to Troubleshooting, "Generator Output Power Sensor - Set".Test Step 1. Inspect the Electrical Connectors and Wiring
Remove the electrical power from the engine.Note: For the following steps, refer to Troubleshooting, "Electrical Connectors - Inspect".
Thoroughly inspect the following components:
J1/P1 connectors
J6/P6 connectors
The wiring and the connections between the master ECM and the GSC+ (if equipped)
The wiring and the connections between the electronic control module and the power sensor (if equipped)
Check the torque of the allen head screw for the ECM connectors.
Perform a 45 N (10 lb) pull test on each of the wires that are associated with the circuit for the power sensor.
Check the harness and wiring for abrasion and for pinch points between the power sensor and the electronic control module.Expected Result:All connectors, pins, and sockets are connected properly. The connectors and the wiring do not have corrosion, abrasion, or pinch points.Results:
OK - The components are in good condition with proper connections. Proceed to Test Step 2.
Not OK - The components are not in good condition and/or at least one connection is improper.Repair: Perform the necessary repairs and/or replace parts, if necessary.STOPTest Step 2. Check for a Diagnostic Code
Connect
Cat SIS web machinery list:
Parts clip Caterpillar catalog:
9X2503
CLIP
3126B, 3126E, 322C, 322C FM, 325C, 325C FM, 572R II, 621H, 621K, 623H, 623K, 623K LRC, 627H, 627K, 627K LRC, 651E, 657E, 69D, 730C, 768C, 769C, 769D, 771C, 771D, 773B, 773D, 773E, 775D, 775E, 777G, 84...
3126B, 3126E, 322C, 322C FM, 325C, 325C FM, 572R II, 621H, 621K, 623H, 623K, 623K LRC, 627H, 627K, 627K LRC, 651E, 657E, 69D, 730C, 768C, 769C, 769D, 771C, 771D, 773B, 773D, 773E, 775D, 775E, 777G, 84...
7S4244
CLIP
235, 311, 311B, 312B, 312C L, 315, 315C, 318B, 318C, 320 L, 320B, 320C, 320C FM, 320C L, 320N, 322, 322 FM L, 322 LN, 322B L, 322B LN, 322C, 325, 325 L, 325 LN, 325B, 325B L, 325C, 325C L, 330, 330 FM...
235, 311, 311B, 312B, 312C L, 315, 315C, 318B, 318C, 320 L, 320B, 320C, 320C FM, 320C L, 320N, 322, 322 FM L, 322 LN, 322B L, 322B LN, 322C, 325, 325 L, 325 LN, 325B, 325B L, 325C, 325C L, 330, 330 FM...
1114837
CLIP
303.5C, 303.5D, 303.5E, 303C CR, 303E CR, 304C CR, 304D CR, 304E, 305.5, 305.5D, 305.5E, 305C CR, 305D CR, 305E, 306, 306E, 307B, 307C, 307D, 307E, 308C, 308D, 308E, 308E CR, 308E SR, 308E2 CR, 311B, ...
303.5C, 303.5D, 303.5E, 303C CR, 303E CR, 304C CR, 304D CR, 304E, 305.5, 305.5D, 305.5E, 305C CR, 305D CR, 305E, 306, 306E, 307B, 307C, 307D, 307E, 308C, 308D, 308E, 308E CR, 308E SR, 308E2 CR, 311B, ...
1114838
CLIP
303.5, 304.5, 307C, 307D, 308C, 308D, 311B, 311C, 311D LRR, 311F LRR, 312B, 312B L, 312C, 312C L, 312D, 312D L, 312D2, 312D2 GC, 312D2 L, 312E, 312E L, 313B, 313D, 313D2, 313D2 LGP, 314C, 314D CR, 314...
303.5, 304.5, 307C, 307D, 308C, 308D, 311B, 311C, 311D LRR, 311F LRR, 312B, 312B L, 312C, 312C L, 312D, 312D L, 312D2, 312D2 GC, 312D2 L, 312E, 312E L, 313B, 313D, 313D2, 313D2 LGP, 314C, 314D CR, 314...
1114836
CLIP
304, 305, 307B, 307C, 307D, 307E, 308C, 308D, 308E, 308E CR, 308E SR, 311B, 311C, 311D LRR, 311F LRR, 312B, 312B L, 312C, 312C L, 312D, 312D L, 312D2, 312D2 GC, 312D2 L, 312E, 312E L, 313B, 313D, 313D...
304, 305, 307B, 307C, 307D, 307E, 308C, 308D, 308E, 308E CR, 308E SR, 311B, 311C, 311D LRR, 311F LRR, 312B, 312B L, 312C, 312C L, 312D, 312D L, 312D2, 312D2 GC, 312D2 L, 312E, 312E L, 313B, 313D, 313D...
7Y4868
CLIP
311C, 311D LRR, 311F LRR, 312B, 312B L, 312C, 312C L, 312D, 312D L, 312D2, 312D2 GC, 312D2 L, 312E, 312E L, 313D, 313D2, 313D2 LGP, 314C, 314D CR, 314D LCR, 314E CR, 314E LCR, 315B, 315B L, 315C, 315D...
311C, 311D LRR, 311F LRR, 312B, 312B L, 312C, 312C L, 312D, 312D L, 312D2, 312D2 GC, 312D2 L, 312E, 312E L, 313D, 313D2, 313D2 LGP, 314C, 314D CR, 314D LCR, 314E CR, 314E LCR, 315B, 315B L, 315C, 315D...
1538867
CLIP
311C, 311D LRR, 311F LRR, 312C L, 312D, 312D L, 312D2, 312E, 312E L, 314C, 314D CR, 314D LCR, 314E CR, 314E LCR, 315C, 315D L, 316E L, 318D2 L, 318E L, 319D L, 319D LN, 320B, 320C, 320D, 320D L, 320D ...
311C, 311D LRR, 311F LRR, 312C L, 312D, 312D L, 312D2, 312E, 312E L, 314C, 314D CR, 314D LCR, 314E CR, 314E LCR, 315C, 315D L, 316E L, 318D2 L, 318E L, 319D L, 319D LN, 320B, 320C, 320D, 320D L, 320D ...
1087550
CLIP
1390, 2590, 315C, 315D L, 316E L, 318C, 318D L, 318D2 L, 318E L, 319C, 319D, 319D L, 319D LN, 320B, 320B U, 320C, 320C FM, 320C L, 320D, 320D FM, 320D FM RR, 320D GC, 320D L, 320D LN, 320D LRR, 320D R...
1390, 2590, 315C, 315D L, 316E L, 318C, 318D L, 318D2 L, 318E L, 319C, 319D, 319D L, 319D LN, 320B, 320B U, 320C, 320C FM, 320C L, 320D, 320D FM, 320D FM RR, 320D GC, 320D L, 320D LN, 320D LRR, 320D R...
7K2828
CLIP
530B, 589, 621, 621B, 623, 623B, 633D, 641B, 657B, 666, 666B, 769D, 771D, 772B, 773B, 773D, 773E, 773F, 775B, 775D, 775E, 775F, 776C, 776D, 777B, 777C, 777D, 784B, 784C, 785, 785B, 785C, 785D, 789, 78...
530B, 589, 621, 621B, 623, 623B, 633D, 641B, 657B, 666, 666B, 769D, 771D, 772B, 773B, 773D, 773E, 773F, 775B, 775D, 775E, 775F, 776C, 776D, 777B, 777C, 777D, 784B, 784C, 785, 785B, 785C, 785D, 789, 78...
3P0572
CLIP (tab)
227, 572G, 594H, D7F, D7G, D7G2, D8N, D8R, D8R II, D8T, D9H, D9T
227, 572G, 594H, D7F, D7G, D7G2, D8N, D8R, D8R II, D8T, D9H, D9T
3P0574
CLIP (slot)
227, 572G, 594H, D7F, D7G, D7G2, D8N, D8R, D8R II, D8T, D9H, D9T
227, 572G, 594H, D7F, D7G, D7G2, D8N, D8R, D8R II, D8T, D9H, D9T
3G8051
CLIP(TAB)
D10N, D10R, D10T, D10T2, D6H, D9L
D10N, D10R, D10T, D10T2, D6H, D9L
2492757
CLIP
3512, 3512B, 3512C, 770G, 770G OEM, 772G, 772G OEM, 924G, 924GZ, 930G, 986H, C175-16, G3516B, IT28G, XQC1200
3512, 3512B, 3512C, 770G, 770G OEM, 772G, 772G OEM, 924G, 924GZ, 930G, 986H, C175-16, G3516B, IT28G, XQC1200
8T1780
CLIP
3512C, 797F, 936, 936F, D7G, D7G2, G936
3512C, 797F, 936, 936F, D7G, D7G2, G936
1709094
CLIP
777C, 777D, 777F, 777G, 824C, 824G II, 825G II, 980G II, C7, C7.1
777C, 777D, 777F, 777G, 824C, 824G II, 825G II, 980G II, C7, C7.1
2321754
CLIP
120K, 120K 2, 12K, 12M, 140G, 140K, 140K 2, 140M, 160K, 324D, 324D FM, 324D FM LL, 324D L, 324D LN, 325D, 325D FM, 325D FM LL, 325D L, 325D MH, 326D L, 328D LCR, 329D, 329D L, 329D LN, 525C, 535C, 545...
120K, 120K 2, 12K, 12M, 140G, 140K, 140K 2, 140M, 160K, 324D, 324D FM, 324D FM LL, 324D L, 324D LN, 325D, 325D FM, 325D FM LL, 325D L, 325D MH, 326D L, 328D LCR, 329D, 329D L, 329D LN, 525C, 535C, 545...
7M0873
CLIP
1673, 3612, 3616, 518, 583K, 641B, 650B, 666, 773, 824, 950B, 950B/950E, 950F, 950F II, 955L, 960F, 966G II, 972G II, 977K, 980, 980B, 983, 988, C280-16, D346, D353C, D379A, D399, D4D, D4H, D4HTSK II,...
1673, 3612, 3616, 518, 583K, 641B, 650B, 666, 773, 824, 950B, 950B/950E, 950F, 950F II, 955L, 960F, 966G II, 972G II, 977K, 980, 980B, 983, 988, C280-16, D346, D353C, D379A, D399, D4D, D4H, D4HTSK II,...
1160118
CLIP
10-20B, 120H, 120H ES, 120H NA, 120M, 120M 2, 12H, 12H ES, 12H NA, 12M, 12M 2, 12M 3, 12M 3 AWD, 135H, 135H NA, 140H, 140H ES, 140H NA, 140M, 140M 2, 140M 3, 140M 3 AWD, 143H, 14H NA, 14M, 160H, 160H ...
10-20B, 120H, 120H ES, 120H NA, 120M, 120M 2, 12H, 12H ES, 12H NA, 12M, 12M 2, 12M 3, 12M 3 AWD, 135H, 135H NA, 140H, 140H ES, 140H NA, 140M, 140M 2, 140M 3, 140M 3 AWD, 143H, 14H NA, 14M, 160H, 160H ...
2S8753
CLIP
621, 980, AP-1000B, AP-650B, BG-225C, C175-16, C175-20, D11T
621, 980, AP-1000B, AP-650B, BG-225C, C175-16, C175-20, D11T
3523966
CLIP
120K, 120K 2, 12K, 140K, 140K 2, 160K, 324D, 324D FM, 324D L, 324D LN, 325D, 325D FM, 325D FM LL, 325D L, 325D MH, 326D L, 328D LCR, 329D, 329D L, 329D LN, 3512B, 3512C, 3516C, 374F L, 525C, 535C, 545...
120K, 120K 2, 12K, 140K, 140K 2, 160K, 324D, 324D FM, 324D L, 324D LN, 325D, 325D FM, 325D FM LL, 325D L, 325D MH, 326D L, 328D LCR, 329D, 329D L, 329D LN, 3512B, 3512C, 3516C, 374F L, 525C, 535C, 545...
2697678
CLIP
314E CR, 314E LCR, 336F L, 3512C, 521B, 522B, 950H, 962H, 966H, 972H, 980C, C18, C32, CW-34, D3K XL, D3K2 LGP, D4K XL, D4K2 XL, D5K LGP, D5K2 XL, IT62H
314E CR, 314E LCR, 336F L, 3512C, 521B, 522B, 950H, 962H, 966H, 972H, 980C, C18, C32, CW-34, D3K XL, D3K2 LGP, D4K XL, D4K2 XL, D5K LGP, D5K2 XL, IT62H
3630254
CLIP
336E, 336E H, 336E L, 336F L, 374F L, 390F L, 568 FM LL, 773G, 773G OEM, 775G, 775G OEM, 777G, 824K, 825K, 826K, 834K, 836K, 844K, 854K, 988K, 990K, 992K, 993K, C15, C18, C27, C32, D10T2, D11T
336E, 336E H, 336E L, 336F L, 374F L, 390F L, 568 FM LL, 773G, 773G OEM, 775G, 775G OEM, 777G, 824K, 825K, 826K, 834K, 836K, 844K, 854K, 988K, 990K, 992K, 993K, C15, C18, C27, C32, D10T2, D11T
3630253
CLIP
336E, 336E H, 336E L, 336F L, 374F L, 390F L, 568 FM LL, 773G, 773G OEM, 775G, 775G OEM, 777G, 824K, 825K, 826K, 834K, 836K, 844K, 854K, 988K, 990K, 992K, 993K, C15, C18, C27, C32, D10T2, D11T
336E, 336E H, 336E L, 336F L, 374F L, 390F L, 568 FM LL, 773G, 773G OEM, 775G, 775G OEM, 777G, 824K, 825K, 826K, 834K, 836K, 844K, 854K, 988K, 990K, 992K, 993K, C15, C18, C27, C32, D10T2, D11T
3256995
CLIP
330D L, 330D MH, 336D, 336D L, 336D2, 336D2 L, 340D L, 340D2 L, 349E, 349E L, 349E L HVG, 349E L VG, 349F L, 3516C, 773G, 773G OEM, 775G, 775G OEM, 777G, 797F, 844K, 854K, 973D, 990K, 992K, 993K, C11,...
330D L, 330D MH, 336D, 336D L, 336D2, 336D2 L, 340D L, 340D2 L, 349E, 349E L, 349E L HVG, 349E L VG, 349F L, 3516C, 773G, 773G OEM, 775G, 775G OEM, 777G, 797F, 844K, 854K, 973D, 990K, 992K, 993K, C11,...