Cat Electrical 797 Truck Front Engine Control Electrical Circuit System Schematic Manual - PDF DOWNL

RENR2689 November 2000

797 Truck Front Engine Control Electrical Circuit 5YW1-UP

©2000 Caterpillar All Rights Reserved

Printed in U.S.A.

3E3361 P-C10 TIMIMG CAL 1 CONN 70 2

R800-P66 OR-18 R998-P58 BR-16 R803-P73 GY-18

R800-P65 OR-18 R998-P62 BR-16 R804-P74 GY-18

R997-P75 OR-16 R993-P76 BR-16 R747-P77 GY-18

FRONT ENG TURBO OUTLET PRESS SENSOR P-C18 3E3370 (BOOST) OR-18 A +5V 1619929 YL-18 B GROUND GN-18 C SIGNAL

R997-P78 OR-16 R993-P79 BR-16 R746-P80 PK-18

BK-18 BK-18

R719-P101 BR-18 R998-P60 BR-16

BK-18 BK-18

1 2

R725-P102 WH-18 R998-P61 BR-16

229-P104 BK-16 229-P105 BK-16 ENGINE BLOCK GND 1

R997-P84 OR-16 R993-P85 BR-16 R994-P86 GY-18

FRONT ENG AFTERCOOLER TEMP SENSOR P-C22 1042921 1022240 OR A VS BK B GROUND WH C SIGNAL

R997-P90 OR-16 R993-P91 BR-16 R751-P92 YL-18

P-C23 3E3370

FRONT ENG SPEED TIMING SENSOR 1296628 OR-18 +12V YL-18 GROUND WH-18 SIGNAL

A B C

FRONT ENG WASTEGATE PROP SOL 1094591 RD-16 RD-16

1 2

R996-P156 GN-18 R998-P63 BR-16 R999-P157 WH-18

P-C24 3E3361 R798-P93 PK-18 R797-P94 WH-18

FRONT ENG CYL HEAD SOL 3 1379881

FRONT ENG CYL HEAD SOL 7 1379881

P-C36 3E3361

P-C37 3E3361

BR BR

BR BR FRONT ENG RECEPT 5 9X0352

1 2

FRONT ENG RECEPT 3 9X0352

1 2

1 2

P-C35 3E3361

FRONT ENG CYL HEAD SOL 11 1379881

FRONT ENG RECEPT 7 9X0352 P-C38 3E3361

FRONT ENG RECEPT 9 9X0352

BR BR

BR BR FRONT ENG CYL HEAD SOL 6 1379881

R804-P74 GY-18 R814-P72 PK-18

R997-P142 OR-16

R726-P120 PU-16 R799-P98 BR-18 R994-P86 GY-18 R995-P69 BU-18

X999-P96 GN-18 R727-P129 YL-16 R712-P126 BR-16 R915-P99 YL-18 R751-P92 YL-18 R701-P111 GY-16 R728-P117 BR-16 R710-P125 GY-16 R747-P77 GY-18 R729-P132 GN-16 R708-P124 BR-16 R746-P80 PK-18 R914-P51 OR-16 R803-P73 GY-18 R703-P110 BR-16 R730-P114 GY-16 R706-P123 GY-16 R798-P93 PK-18 R711-P106 PU-16 R705-P109 YL-16 R731-P135 OR-16 R704-P122 GN-16 R797-P94 WH-18 R709-P107 OR-16 R707-P108 PU-16 R702-P121 PU-16

RH TURBO EXH TEMP SNSR RH TURBO EXH PRESS SENSOR UNUSED UNUSED INJECTOR 1 &3 SOL RETURN UNUSED PWM RETURN 1 &2 ENG OIL PRESS SEN FILTERED COOLANT TEMP SENSOR UNUSED INJECTOR 2 &4 SOL RETURN INJECTOR 12 SOL OIL RENEWAL SOL UNUSED AFTERCOOLER TEMP SENSOR INJECTOR 1 SOL INJECTOR 5 &7 SOL RETURN INJECTOR 10 SOL UNUSED ATMOSPHERIC PRESS SENSOR INJECTOR 6 &8 SOL RETURN INJECTOR 8 SOL TURBO OUTLET PRESS SENSOR THROTTLE SIGNAL LH TURBO EXH TEMP SENSOR INJECTOR 3 SOL INJECTOR 9 &11 SOL RETURN INJECTOR 6 SOL WASTEGATE SOLENOID UNUSED INJECTOR 11 SOL INJECTOR 5 SOL INJECTOR 10 &12 SOL RETURN INJECTOR 4 SOL WASTEGATE RETURN UNUSED INJECTOR 9 SOL INJECTOR 7 SOL UNUSED INJECTOR 2 SOL

P-C4 1010205

Media Number

797 Truck Electrical System Schematic Titles

Panel Lamp and Miscellaneous Circuits

RENR2685

Washer / Wiper and Turn Signal Circuits

RENR2686

Heater and Air Conditioning Circuits

RENR2687

Chassis Control Circuit

RENR2688

Transmission Control Circuit

RENR2689

Front Engine Control Circuit

RENR2690

Rear Engine Control Circuit

RENR2691

Master Engine Control Circuit

RENR2692

Schematic Tables and Symbol Definitions

P-C12 3E3382

GY-16 GY-16 BR-16 BR-16 PU-16 PU-16

FRONT ENG RECEPT 12 9X0352

PU-16 OR-16 PU-16 YL-16 BR-16

T918-P8 BU-16 T998-P13 BR-18 T919-P10 YL-16 R918-P17 GN-16 R998-P47 BR-16 R919-P18 OR-16

AL-C14 1552273

AL-C7 1552273

1 2 3 4 5 6

T918-AL4 BU-16 T998-AL6 BR-16 T919-AL5 YL-16 R918-AL57 GN-16 R998-AL62 BR-16 R919-AL63 OR-16

1 2 3 4 5 6

1 2 3 4 5 6

CONN 77 GROUND LEVEL SHUTDOWN SW 1702512

R730-P114 GY-16 R728-P117 BR-16 R726-P120 R701-P111 R702-P121 R727-P129

PU-16 GY-16 PU-16 YL-16

R729-P132 GN-16

CN-C4 3E6287

P-C5 1130581

CONN 8 40 PIN

R731-P135 OR-16 GN-16 GY-16 BR-16 GY-16 BR-16

150-P1 OR-14 150-P2 OR-14 893-P3 GN-18 892-P4 BR-18 113-P5 OR-14 R914-P51 OR-16 R810-P9 BR-16 R800-P12 OR-18 R998-P14 BR-16 R807-P15 WH-16 E794-P20 YL-18 E793-P21 BU-18

1 3 5 6 7 10 14 17 20 23 33 34 CONN 57 40 PIN

150-CN14 150-CN15 893-CN47 892-CN49 113-CN45

RD-14 RD-14 GN-18 BR-18 OR-16

RENR2680

R810-CN21 BR-16

RENR2681

RENR2691

R998-CN26 R807-CN28 E794-CN41 E793-CN43

RENR2681

RENR2691

BR-16 WH-16 YL-16 BU-16

RENR2683 RENR2683

150-CN15 RD-14 150-CN14 RD-14 113-CN45 OR-16 113-CN46 OR-16 E794-CN41 YL-16 E794-CN42 YL-16 E793-CN43 BU-16 E793-CN44 BU-16 893-CN47 GN-18 893-CN48 GN-18 892-CN49 BR-18 892-CN50 BR-18

113-CN18 OR-16

FRONT ENG CYL HEAD SOL 12 1379881

150-CN14 RD-14 150-CN15 RD-14

1 3

150-J267 RD-14 150-J268 RD-14

113-CN18 OR-16

7

113-J334 OR-16

E794-CN35 YL-16

RENR2691

E793-CN36 BU-16

RENR2691

893-CN16 GN-18

RENR2683

892-CN17 BR-18

RENR2683

FRONT ENG CYL HEAD SOL 10 1379881 FRONT ENG CYL HEAD SOL 8 1379881

1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40

Vital Information Management System (VIMS)

FRONT ENG RECEPT 11 9X0352

P-C46 3E3361

FRONT ENG RECEPT 10 9X0352

R800-P138 OR-18 R997-P142 OR-16 R796-P89 GN-18 R999-P157 WH-18 X999-P96 GN-18 R810-P9 BR-16

R993-P140 BR-16

RENR2684

1 2

FRONT ENG RECEPT 8 9X0352

R800-P138 OR-18

Integrated Brake Control Circuit

BR BR

FRONT ENG RECEPT 6 9X0352

R998-P64 BR-16 R993-P140 BR-16 R795-P83 YL-18 R996-P156 GN-18

RENR2683

P-C45 3E3361 1 2

FRONT ENG RECEPT 4 9X0352

R998-P64 BR-16

Starting and Start Aid Circuits

P-C40 3E3361

BR BR

FRONT ENG RECEPT 2 9X0352

1 2

P-C44 3E3361

1 2

P-C43 3E3361

1 2

P-C42 3E3361

R807-P15 WH-16 113-P56 OR-14 R719-P101 BR-18

113-P56 OR-14

RENR2682

P-C39 3E3361

P-C41 3E3361

150-P52 OR-14 150-P53 OR-14

BK-16 GN-16 WH-18 PK-18

Power Distribution and Ground Circuits

R704-P122 R706-P123 R708-P124 R710-P125 R712-P126

BR BR

RENR2691

A234-P150 F711-P146 R725-P102 R723-P151

E794-P45 YL-18

RENR2681

R727-P127 YL-16 R727-P128 YL-16 R729-P130 GN-16 R729-P131 GN-16 R731-P133 OR-16 R731-P134 OR-16

1 2

RENR2680

893-P39 GN-18 E793-P42 BU-18

797 Truck Electrical System

R730-P112 R730-P113 R728-P115 R728-P116 R726-P118 R726-P119

BR BR

RENR2691

892-P36 BR-18

RENR2680

R711-P106 R709-P107 R707-P108 R705-P109 R703-P110

FRONT ENG CYL HEAD SOL 4 1379881

RENR2691

892-P34 BR-18 892-P4 BR-18 893-P37 GN-18 893-P3 GN-18 E793-P40 BU-18 E793-P21 BU-18 E794-P43 YL-18 E794-P20 YL-18 X998-P46 BR-16 X998-P48 BR-18 X998-P49 BR-16 150-P1 OR-14 150-P2 OR-14 113-P55 OR-14 113-P5 OR-14 R998-P47 BR-16 R998-P58 BR-16 R998-P14 BR-16 R998-P60 BR-16 R998-P61 BR-16 R998-P62 BR-16 R998-P63 BR-16 R800-P66 OR-18 R800-P65 OR-18 R800-P12 OR-18 R993-P91 BR-16 R993-P68 BR-16 R993-P71 BR-16 R993-P76 BR-16 R993-P79 BR-16 R993-P82 BR-16 R993-P85 BR-16 R993-P88 BR-16 R997-P90 OR-16 R997-P78 OR-16 R997-P70 OR-16 R997-P67 OR-16 R997-P75 OR-16 R997-P81 OR-16 R997-P84 OR-16 R997-P87 OR-16 X999-P6 GN-18 X999-P7 GN-18 229-P104 BK-16 R731-P135 OR-16 229-P105 BK-16 R919-P18 OR-16 R797-P94 WH-18 R798-P93 PK-18 R999-P157 WH-18 R996-P156 GN-18 R751-P92 YL-18 R796-P89 GN-18 R994-P86 GY-18 R795-P83 YL-18 R747-P77 GY-18 R746-P80 PK-18 R719-P101 BR-18 R725-P102 WH-18 R915-P99 YL-18 R799-P98 BR-18 R995-P69 BU-18 R814-P72 PK-18 R804-P74 GY-18 R810-P9 BR-16 R807-P15 WH-16 R914-P51 OR-16 R803-P73 GY-18 R712-P126 BR-16 R710-P125 GY-16 R708-P124 BR-16 R706-P123 GY-16 R704-P122 GN-16 R702-P121 PU-16 R711-P106 PU-16 R709-P107 OR-16 R707-P108 PU-16 R705-P109 YL-16 R703-P110 BR-16 R701-P111 GY-16 R730-P114 GY-16 R728-P117 BR-16 R726-P120 PU-16 R727-P129 YL-16 R729-P132 GN-16 R918-P17 GN-16

RENR2570

RENR2690

FRONT ENG CYL HEAD SOL 2 1379881

RENR2691

FRONT ENG CYL HEAD SOL 9 1379881

BR BR

FRONT ENG CYL HEAD SOL 5 1379881

BR BR

FRONT ENG CYL HEAD SOL 1 1379881

BR BR

1 2

R997-P81 OR-16 R993-P82 BR-16 R795-P83 YL-18

R997-P87 OR-16 R993-P88 BR-16 R796-P89 GN-18

1 2

R799-P98 BR-18 R915-P99 YL-18

FRONT ENG FUEL FLTR DIFF SW P-C30 1445661 3E3361

FRONT ENG UNFILTERED OIL PRESS SNSR P-C21 3E3370 1619931 OR-18 A +5V YL-18 B GROUND GN-18 C SIGNAL

FRONT ENG RECEPT 1 9X0352

1 2

FRONT ENG OIL VERY LOW SW P-C29 1232993 3E3361

P-C20 3E3370 A B C

RENR2683

PC-C1 P-C26 3E3364 3E3361 R799-PC2 BR-18 R915-PC1 YL-18

RENR2683

R799-P98 BR-18 R998-P61 BR-16 R915-P99 YL-18 X998-P46 BR-16 X999-P6 GN-18 X998-P49 BR-16 R998-P60 BR-16 229-P104 BK-16 R725-P102 WH-18 R719-P101 BR-18 229-P105 BK-16 R999-P157 WH-18 R803-P73 GY-18 R747-P77 GY-18 R814-P72 PK-18 R995-P69 BU-18 R997-P81 OR-16 R997-P78 OR-16 R997-P75 OR-16 R993-P88 BR-16 R993-P82 BR-16 R993-P76 BR-16 R993-P68 BR-16 R800-P65 OR-18 R998-P63 BR-16 R998-P62 BR-16 R996-P156 GN-18 R751-P92 YL-18 R796-P89 GN-18 R994-P86 GY-18 R998-P58 BR-16 R800-P66 OR-18 R993-P71 BR-16 R993-P79 BR-16 R993-P85 BR-16 R993-P91 BR-16 R997-P67 OR-16 R997-P70 OR-16 R997-P84 OR-16 R997-P87 OR-16 R997-P90 OR-16 R804-P74 GY-18 R746-P80 PK-18 R795-P83 YL-18 R797-P94 WH-18 R798-P93 PK-18 150-P2 OR-14 892-P4 BR-18 E794-P20 YL-18 893-P3 GN-18 R807-P15 WH-16 R810-P9 BR-16 113-P5 OR-14 R914-P51 OR-16 R800-P12 OR-18 R998-P14 BR-16 E793-P21 BU-18 150-P1 OR-14 R726-P120 PU-16 R728-P117 BR-16 R730-P114 GY-16 R701-P111 GY-16 R703-P110 BR-16 R705-P109 YL-16 R707-P108 PU-16 R729-P132 GN-16 R731-P135 OR-16 R712-P126 BR-16 R710-P125 GY-16 R708-P124 BR-16 R711-P106 PU-16 R702-P121 PU-16 R704-P122 GN-16 R706-P123 GY-16 R727-P129 YL-16 R709-P107 OR-16 R998-P47 BR-16 R918-P17 GN-16 R919-P18 OR-16

FRONT ENG CONT OIL BURN SOL 1427363

FRONT ENG ATMOSPHIRIC PRESS SENSOR P-C17 3E3370 1619926 OR-18 A +5V YL-18 B GROUND GN-18 C SIGNAL

FRONT ENG CRANKCASE PRESS SENSOR P-C19 3E3370 1619926 OR-18 A +5V YL-18 B GROUND GN-18 C SIGNAL

A B

F711-PF7 GN-16 F712-PF8 GY-16 A234-PF9 BK-16

21 TERM JUNCTION BLOCK J-C90 1153082

7 6 3 2 1 5 4 8 9

CN-C2 J-C51 9X7147 9X7148 HARNESS TAG "6"

113-J15 OR-16 113-J387 OR-16 113-J374 OR-16 113-J127 OR-16 113-J333 OR-16 113-J249 OR-16 113-J334 OR-16 113-J265 OR-18 113-J266 OR-18

10 11 12 150-J269 RD-14

PC-C2 1231197

RENR2691

X412-P97 BU-18 X998-P46 BR-16

7

A B C

P-C27 3E3361 1 2

BK-18 BK-18

P-C15 1042921

P-C16 FRONT ENG RH TURBO EXH TEMP SNSR 1042921 1094367 OR A VS BK B GROUND WH C SIGNAL

FRONT ENG FILTERED OIL PRESS SNSR 1619931 OR-18 +5V YL-18 GROUND GN-18 SIGNAL

ENG COOLANT FLOW SW 1383672

R997-P70 OR-16 R993-P71 BR-16 R814-P72 PK-18

P-C9 3E3370

A F711-P146 GN-16 B F712-P148 GY-16 C A234-P150 BK-16 CONN 69

F711-PF4 GN-16 F712-PF5 GY-16 A234-PF6 BK-16

150-E38 RD-14

A B C

RENR2690

F711-PF1 GN-16 F712-PF2 GY-16 A234-PF3 BK-16

FRONT ENGINE ECM 1328900 ATA DATA LINK GND LEVEL SHUTDOWN (N/O) CAT DATA LINK +BATTERY -BATTERY +BATTERY ATA DATA LINK + GND LEVEL SHUTDOWN (N/C) CAT DATA LINK + CAN LINK -BATTERY TIMING CAL UNUSED UNUSED J1939 SHIELD GROUND (CAN) CAN LINK + FUEL FILTER SW TIMING CAL + UNUSED UNUSED UNUSED START AID HOLD RELAY 1 KEY SWITCH ON ENG OIL VERY LOW SW UNUSED UNUSED UNUSED UNUSED DIGITAL SENSOR RETURN ANALOG SENSOR RETURN CRANKCASE PRESS SENSOR +V TIMING UNUSED UNUSED DIGITAL SNSR POWER +8V ANALOG SNSR POWER +5V OIL PRESS SNSR UNFILTERED ENGINE SPEED/TIMING SENSOR MASTER ENG 1 SPEED SENSOR START AID PULL IN RELAY 1

BR BR

FRONT ENG LH TURBO EXH TEMP SNSR 1094367 OR VS BK GROUND WH SIGNAL

P-C14 3E3370

PF-C1 3E3367

RENR2691

MASTER FRONT ENG SPEED SNSR P-C25 3E3370 1296628 OR-18 A +VS X996-P136 GN-18 BK-18 B GROUND X998-P49 BR-16 WH-18 C SIGNAL X999-P6 GN-18

R997-P67 OR-16 R993-P68 BR-16 R995-P69 BU-18

E793-P42 BU-18 R918-P17 GN-16 892-P36 BR-18 150-P53 OR-14 229-P105 BK-16 150-P52 OR-14 E794-P45 YL-18 R919-P18 OR-16 893-P39 GN-18 F712-P148 GY-16 229-P104 BK-16 R724-P152 PU-18

1 2

FRONT ENG TURBO INLET PRESS SNSR 1619926 VS OR-18 GROUND YL-18 SIGNAL GN-18

P-C13 1042921 A B C

1 2

FRONT ENG COOLANT TEMP SNSR 1022240 OR VS BK GROUND WH SIGNAL

1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40

P-C3 1010204

R723-P151 PK-18 R724-P152 PU-18

RENR2680

RENR2680

21 TERM JUNCTION BLOCK J-C87 1153082

J-C14 7X6222 CONN 23 24 PIN E-C1 9X0146

101-EK1 RD-10 15A 101-CK1 RD-10 ADEM FRONT BREAKER 6T3643

RENR2680

RENR2689 797 TRUCK FRONT ENGINE CONTROL CIRCUIT