ComponentLocation
ConnectorLocation Schematic ConnectorNumber Location CONN 1 J-18 CONN 2 J-17 CONN 3 L-17 CONN 4 L-17 CONN 5 I-15 CONN 6 Code L-15 CONN 7 B-14 CONN 8 B-14,L-10 CONN 9 C-14 CONN 10 C-14 CONN 11 C-14 CONN 12 I-15 CONN 13 K-14 CONN 14 K-14 CONN 15 Dat aL ni k L-15 CONN 16 C-13 CONN 17 D-13,K-2 CONN 18 J-13 CONN 19 J-13 CONN 20 D-11 CONN 21 D-11 CONN 22 B-10,K-2 CONN 23 D-10 CONN 24 D-10 CONN 25 H-8 CONN 29 F-7 CONN 30 F-7 CONN 31 F-7 CONN 32 I-7 CONN 33 J-7 CONN 34 K-7 CONN 35 K-7 CONN 36 K-7 CONN 37 D-5,H-6 CONN 38 D-5,I-6 CONN 39 C-5,I-6 CONN 40 B-5 CONN 41 B-5 CONN 42 K-5 CONN 43 K-5 CONN 44 B-3 CONN 45 G-1 CONN 46 G-1 CONN 47 J-13 CONN 48 I-14 CONN 49 H-11 CONN 50 H-11 CONN 51 F-17 CONN 52 C-4 CONN 53 E-6 CONN 54 E-5
Machine Location 9 9 A 9 A 4 A A A A A G 25 25 4 C C 3 3 3 3 C 3 3 A B B B 1 3 7 3 3 6 6 6 3 6 3 3 6 8 8 3 A 25 25 F 3 3 3
13 25 18 16
10 7
9
E D
F 1
20
C 24 21 3 B
22 11 5
27
6
G
19
15 23
17
12 2
8
14
A 4
26
9
C
10 E
D
B
21 19 18
A
26
27 F 25 20
1
7
3
G 16
13
6
11
5 12 14 8 17 2 15 22 23
24 4
E84058
Machine Harness Connector And Component Locations
The connectors shown in this chart are harness to harness and special use connectors. Connectors which join a harness to a component are generally located at or near the component. See the component location chart
Component Identifiers (CID¹) For Shift Lever Control CD I N o. CD I 1 68 C I D6 6 8
Related Electrical Service Manuals
D es cr p i it on Ee l ct ri ca lS ys e t m
T ti el
T r an sm i ss i on S hfi tL ev e r
¹ The CID is a diagnostic code that indicates which component is faulty.
F or mNu mb er
Power Shift TransmissionControl
SENR1274
S ta tr er : 1 43 -0 53 9
S EN R3 82 8
Schematic Machine Component Location Location Alarm - Backup D-18 1 Alarm - Lightbar Action D-16, F-5 B Alarm - Stabilizer Leg I-7 B Alternator E-3 2 Battery 1 C-3 4 B at et ry 2 D-3 4 B re ak er - R un ni ng L am p F -1 0 A C oi l- T he m r os a t tr J4 - E , 3 5 C ontr ol- Pow ersh fi t L- 12 4 C ontr ol- S hutt el K- 12 D Flasher F-10 B F us es E, F-11 D Fuses E,F-10 C Fuses E,F14 C Fuses K,L-3 C Gauge - AWS Position L-15 B G au g e- C on v er t er T e mp e ar u t re A - 15 A G au ge - F ue lL ev el A1 - 6 A G au ge - T ac ho me e t r B 1- 6 A G ro un d- C ab ,F ra me ,E ng n i e C -3 4 Gr ound - E ngi ne G- 3 6 Go r un d- H ea dl n i er B1 - 2 C Go r un d- P a l ft or m A1 - 4 7 H eate r- E ngi ne Bl ock G-7 2 Horn - Forward B-3 8 Horn - Leg Stab I-15 B H orn - R ear D 1- 8 1 L am p- I nd ci at or L -5 B LED - Service L-14 A Meter - Service D-14 A M ot or - B ol wer K- 18 9 M ot or - F an As sem bl y E- 17 3 M ot or - F ro nt W as he r C -3 21 M ot or - Fr ont Wi per G-5 C M ot or - H ea et rB ol we r E1 - 7 A M ot or - R ea rW as he r C3 21 M ot or - R ea rW pi er E1 - 7 10 M ot or - S eat Co mpr esso r F 1- 6 F P ower P ort D 1- 4 A R el ay - A cc es so yr F9 D R el ay - A ce sor y2 E 1- 0 D Relay - Air Conditioner F-9 B Relay - Cab E-9 D R el ay - Lef tS et er K 4B R el ay - L oa de rL oc k I -9 A R el ay - M ai n F9 D R el ay - P ar ki ng B a r ke K1 - 5 A R el ay - P ow er S ea t A -1 5 F R el ay - R d i eC on rt ol G1 - 1, G 6 E R el ay - R gi ht S e t er K4 B R el ay - S eat A- 15 F R el ay - S hut off J- 4 B R el ay - S a t bi il ze rL eg H1 - 4 E Relay - Start E-9 D Resistor H-15 3 R es si o t r- A ri C on di it on ni g K 1- 7 A R esi st or - Heat er E- 16 A S e nd er - C on v er t er T e mp er aut r e I -5 ,G - 4 6 S en de r- C oo al nt I4 - ,E 3 12 S en de r- F ue lL ev el H -5 ,G 4 13 S en so r- R ea rS e t er P os it o i n J9 7 S en so r- R et ur nt oD g i L1 - 8 14 S ens or- S peed I- 12 G S ol en oi d- A ri C on di ti on er C u l ct h J1 - 7 15 S ol en oi d- A ux .D et en t A5 16 S ol en oi d- B uc ke tP os ti o i n A 416 S ol enoi d- Ci crl eSt eer L-9 7 S oel no i d- C odl S t ar t A dv a nc e H-5 12 S oel no i d- E n gi n eS hu t do wn G -3 17 Machine locations are repeated for components located close together A = Operator Compartment - Right Console B = Operator Compartment - Front Console C = Operator Compartment - Overhead Console D = Operator Compartment - Steering Column Top Panel E = Operator Compartment F= InsideSeatAssembly G = Under Cab Floorplate
Component
Schematic Location H-5 I-5 F-3 J-12 I-12 A- 18 I -7 L9 L- 9 I 1- 2 H-9 I 7L-9 L-9 B-18 D-3 K -1 6 E6 H1 - 4 D -6 L- 5 K8 D1 - 7 E- 12 D-9 D-9 C 4H -4 H-4, F-3 D-6 A- 15 F 6H5 - ,F -3 K- 17 K1 - 7 G 1- 2 E 1- 2 F 6H 1- 4 F1 - 2 A- 14 C-5 D-14 I 7E -5 D 5K1 L -1 K -1 K1 J-11 B- 8 G 9F-12 A-17 K7 D 1- 3 J -1 6 L1 - 6 H -1 1, L 6 H -9 D1 - 6 B- 18 D -1 5 J 1- 8 F5 C 1- 3 I - 5, D -4 D-6
Solenoid - First and Second Gear Solenoid - Front Drive Solenoid - FWD-REV Valve Group Solenoid - Group A Solenoid - Group B Sol enoi d- Hydra uli cS huto ff S ol en oi d- L ef tL oa de rL oc k S ol en oi d- L ef tS e t er S ol enoi d- Lock S ol enoi d- Rever se Solenoid - Ride Control S ol enoi d- Ri ght Loade rLo ck Solenoid - Right Steer Solenoid - Shutoff Solenoid - Side Shift Lock Starter S wi t ch - A i rC on di toi n er B l ow er S wi c t h- A ll W he el D ir ve S wi ct h- A ux R ea rF o l od S wi c t h- A ux .C ou pl er Swi ct h - AWS M ode S el ect S wi c t h- A WS P e r s ur e S wi c t h- B ac kh oe S hu ot f S wi ct h - B eac on Switch - Brake A Switch - Brake B S wi ct h - Bra ke Fl ui dLev el S wi tc h- C ol dS a t rt T em pe a r u t e r Switch - Coolant Switch - Coupler Swi ct h - C oupl er Dete nt S wi ct h - D pi B eam S wi c t h- E ng n i eO li P re ss ur e S wi ct h - Fo gLam p S wi c t h- F o r nt F ol od s S wi ct h- F o r nt R oa di ng S wi c t h- F o r nt W pi er S wi ct h- Ha zard S wi ct h - H ead Fl ood A ct h S wi c t h- H ea dT oF o l od L am p Swi ct h - H eate r Switch - Horn Switch - Key Start Swi ct h - L oader Fl oat S wi tc h- L oa de rR od E nd P re ss ur e S wi c t h- L oa de rX ms nN eu rt al zi er S wi c t h- O RO PS B ea co n S wi tc h- O RO PS F ro nt R oa di ng S wi c t h- O RO PS H ea dT oF lo od s S wi c t h- O RO PS R ea rF ol od s Swi ct h - Overdr vi eD si abl e Sw ti ch - Par ki ng Br ake S wi c t h- P e r ss L oa de r Switch - Rear Floods Switch - Rear Horn S wi ct h- R ea rS e t er Swi ct h - Rear Wi per S wti c h- R erf i ge r an t S wi c t h- R et ur nT oD gi S wi tc h- R id eC on rt ol S wi tc h- R d i eC on rt ol S wi c t h- S di eS hi tf S wi ct h- S at b lizi e rLe g S wi tc h- S ta tr A d i S wi c t h- T he m r os a t t S wi ct h- T ur nS g i na l Swi ct h - Wash ers S wti c h- X m sn N e ut ra lzi e r S wti c h- X m sn N eu t ar lzi er L oc k
Machine Location G G G G G 1 18 7 7 G G 19 7 7 1 11 A B C B B 20 A C 27 27 21 12 12 B A B 22 A C C C B C C B B B B B E C C C C B A G C A E C 23 13 E E A 26 A 9 B C E B
RENR2854-01 March 1999
416C, 426C, 428C, and 438C Backhoe Loader with European Cab Electrical System 416C: 5YN15148-16589 1XR2184-2249 2 249
426C: 7WN939-1099 1ER864-899 1NR954-1049 1ZR926-999
428C: 436C: 8RN4089-4989 9JN884-1049 2CR16212-19309 1GR916-949 1RR998-1099 2BR911-999
438C: 9KN1061-1199 1JR1107-1149 1TR1248-1549 2DR2717-3249
©1999 Caterpillar All Rights Reserved
Printed in U.S.A.
WireDescription Wire Number
Failure Mode Identifiers (FMI) F MI N o . 0 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20
F aliu re D es c ri p ito n Data valid butabovenormal operational range. Data valid butbelow normal operational range. Data erratic,intermittent, or incorrect. orrect. Voltageabovenormalor shortedhigh. Voltagebelownormalor shortedlow. Currentbelownormalor open circuit. Currentabovenormalor grounded circuit. ircuit. Mechanical system notresponding properly. Abnormalfrequency, pulse width, or period. Abnormalupdate. Abnormalrateof change. hange. Failuremode not identifiable. Bad deviceor component. Out of calibration. Parameterfailures. Parameterfailures. Parameternot available. Modulenot responding. Sensorsupplyfault. Condition not met. Parameterfailures.
Off Machine Switch Specification P ar tN o.
F un ct oi n
A ct ua e t 1 07 2 . ±2 8 . ºC ( 22 5± 5 ºF )
D ea ct ua e t 9 3º CM N I 6T-2665 Engine Coolant Temperature ( 19 6º FM N I ) 2.2 ± 0.8°C -1.1 ± 0.8°C 9X-5446 Thermostat (36 ± 1.4°F) (30 ± 1.4°F) COLD position ³ 2 75 t o1 75 0k pa ¹ -114-5333 Refrigerant Pressure (40 to 255 psi) -551kPa 344kPa± 20 kPa 128-5091 AWS Pressure (36.3 psi) (49.9 psi ± 2.9psi) ¹ With increasing pressure the closed condition can be maintained up to 2800 kpa (405 psi), with decreasing pressure the closed condition can be maintained down to 170 kpa (25 psi). ² Contact position at the contacts of the harness connector.
C on ta ct P os ti o i n N or ma l y O pe n Normally Closed
N or ma ll y² Open A-CNormally m allyClosed A-BNormallyOpen
³ With the dial in the WARM position the deactuation is 16.9 ± 2.6°C (62.4 ± 4.7°F). The switch is open in the OFF position.
The FMI is a diagnostic code that indicates what type of failure has occurred.
200 2 01 2 02 2 17 2 18 2 65 2 70 2 76 2 77 2 78 2 79 2 80 2 81
Diagnostic Code Conversion F l as h ed C I D- F MI D es c ri p ito n 11 No ActiveFaults Not Applicable 12 otApplicable No InactiveFaultsN 13 -416C 14 -426C 15 -428C 16 -436C 17 -438C 18 -BHL 31 641-05 Solenoid1 Open Circuit 32 642-05 Solenoid2 Open Circuit 33 643-05 Solenoid3 Open Circuit 34 644-05 Solenoid4 Open Circuit 35 645-05 Solenoid5 Open Circuit 36 646-05 Solenoid6 Open Circuit Parking Brake Alarm Relay lay Open Circuit 37 6 83 -0 5 41 641-06 Solenoid1 Short o t Ground 42 642-06 Solenoid2 Short o t Ground 43 643-06 Solenoid3 Short o t Ground 44 644-06 Solenoid4 Short o t Ground 45 645-06 Solenoid5 Short o t Ground 46 646-06 Solenoid6 Short o t Ground 47 6 83 -0 6 Parking Brake AlarmRelay Short to Ground 51 641-03 Solenoid1 Shortto + Battery 52 642-03 Solenoid2 Shortto + Battery 53 643-03 Solenoid3 Shortto + Battery 54 644-03 Solenoid4 Shortto + Battery 55 645-03 Solenoid5 Shortto + Battery 56 646-03 Solenoid6 Shortto + Battery 57 6 83 -0 3 Parking Brake AlarmRelay Short to Battery 69 668-02 InvalidShift Lever Input 71 168-00 System Voltage a geAbove Normal m al 72 168-01 System Voltage a geBelow Normal 73 650-02 InvalidHarness n essCode
1 01 1 02 1 04 105 110 1 11 1 12 1 13 1 15 1 16 1 17 1 18 1 19 121 122 123 124 1 28 130 1 36 140 14 3 144 1 57 1 61 1 70 1 94 197 1 98
Resistor, Sender, and Solenoid Specifications Part No. 3E-1908 3E-6184 3E-8620
Component
4 W- 99 72
Solenoid - A/C Clutch Resistor Solenoid - Aux Dent BucketPos Solenoid - Sideshift Lock Shutoff Valve Group A S en de r- C on ve tr er T em p
7 N- 85 32
S en de r- C oo al nt T em p
3E-8622
8 C- 55 41
S ol en oi d- L H/ RH L oa de rL oc k
1 13-5320 121-4036 1 26-3707 128-2875
S ol enoi d- Ri ght L / eft S et er Solenoid - Front Drive S ol enoi d- Ri de Cont or l Sender- Fuel Level Full: Empty: R es si o t r- A C / Heater Solenoid - Hydraulic
1 34 2- 88 5 138-1976 ¹ Atroomtemperature.
Resistance (Ohms)¹ 17.6 ± 0.6 100 ± 5% 32.1
10.5 5 4° C( 13 0° F) - 5 60 t o7 16 110°C (230°F) - 72 to 82 5 4° C( 13 0° F) - 5 60 t o7 16 110°C (230°F) - 72 to 82 5 4° C( 13 0° F) - 5 60 t o7 16 110°C (230°F) - 72 to 82 8 5. 10.5 2.8 ± 0 3. 240-260 27.5 - 39.5 O ve ar ll 1 0 . ±0 1 . T ap 0 5 . ±00 . 5 8.15 ± 0.6
3 03 3 04 3 06 307 3 08 309 3 10 3 21 3 22 334 3 67 4 05 4 06 4 19 4 29 4 41 4 43 4 47 4 50 4 83 5 00 5 01 5 02 5 03 5 04 5 05 5 06 507 5 08 509 5 11 512 513 5 15 5 16 5 17 520 521
Wire Color
Description
P ow er D is tr ib ut io nC ir cu it s R D B at ( + ) R D Ru nn ni gL amp Pw r Ru YL Ac cR yl O ut pu t RD Key Sw Pwr Ke RD Ho nr Pwr YL Ac cB at P wr PU M ai ain P ow er R yl Ou p t ut O R O pr Mo nPa ne lPw r RD Ac cS oc ke tP wr BR Sd t R ea rF ol od P wr YL A ux R ea rF ol od P wr GY Fr on tW pi er Pw r Fr P K R ea rWi pe rPw r YL B a ck A l ar m P w r BU He ater Pwr WH XMSN Ct lrPwr GN A/C Pwr P K Bu cke tPo sit oi nP wr GN Ra dio Pwr G N S up pl St ee rP wr BU Blowe rPwr BR AWD Pwr GN Beacon Pwr YL A ux F or nt F ol od P wr R D F al h s er P wr RD Ra di oM em or yP wr G N Ca bBa tPw r GN Ca bRela yOutput PK A/ CR el ay O ut pu t Ground Circuits BK M a i nC h as ssi BK O pe ra to rM on ti o r et ur n BK XM S NC rt lG nd BK St ar tr el ay r et ur n BK D ro pv al ve r el ay r et ur n BK L oa de rL oc kG nd B K L oa de rL oc kGn d BK P sh fi tC rt lH ar nC od e0 BK P sh fi tC tr lH ar nC od e 1 BK Ps hi tf C rt lH ar nC od e2 BK P sh fi tC rt lH ar nC od e3 BK P s hi tf C tr lH ar nC od e 4 BK P s hi tf C tr lH ar nC od e 5 Basic Machine Circuits BR K ey S WA CC P os ti oi n WH Sa t tr R el ay O ut pu t GN S at tr er R el ay C oi l OR K e yS wS ta rt P os ti o i n YL K e yS wR un P os ti oi n GY A tl e nr a ot rR eg ul at or T er m. PU Sa t tr A di S ol BR B ac ku pA al m r GY F or wa d r H or n BU C odl S a t rt A dv S ol BU Re ar H or n MonitoringCircuits GY O pr M on O li P e r ss . ( Lo wS et ti ng ) PU O pr M on C oo al nt T em p YL O pr M on P ar ki ng B ar ke YL AW SP os ti oi nG ag e OR E ng C oo al nt T em pG ag e YL C o nv er e t rT em pG ag e PK Fu el L ev el G ag e YL T ac hS en de r ( +) BR O pr pr M on B ar ke F ul di L ev el Accessory Circuits BR Wi pe r- F or nt ( Pa k r ) G N Wip er - F or nt (L ow ) OR Wi pe r- F o Wi r nt ( HI ) BR Wi pe r- R ea r ( Pa k r ) YL W pi er - R ea r (L ow ) BU W pi e r- R e ar ( HI ) PU Wa sh er - F or nt Wa WH Washer - Rea r PU R a dio Sp ea ke r- L ef t W H R a d i o S p ea k er - L e f t( C om m on ) BR R ad oi S pe a e k r- R gi h t GN R a d i oS p ea k er - R i gh t ( C om mo n ) OR A / CC o mp r es s or / Re f ir g er a nt P r es s ur e S W GY B ol we rM ot or ( HI ) GN B ol w er M ot or ( Me di um ) BU Bl ow er M ot or ( Lo w) WH O p r A / CS WT o T h er m os t at / F us e YL A / CS WT o R e f irg er a nt S W
Wire Number 5 22 5 36 5 37 552 568 5 71 5 78 6 19 C 55 8 C 55 9 C 59 3 C 59 4 C 59 5 602 603 604 6 05 606 6 07 608 610 611 6 14 6 17 6 18 6 20 627 6 30 634 7 10 7 52 7 54 7 55 7 62 7 66 7 79 C 7 20 E 70 1 E 70 2 E 76 4 F 73 8 F748 F 76 5 G 72 6 G 74 2 G 74 3 G 78 9 G 79 5 G 79 6 G 79 7 G 79 8 H 76 7 H 76 8 H769 H 7 70 H 77 1 H 77 2 F 87 1 F 87 2 F 87 3 F 87 4 F 87 7 9 22 923 9 44 9 45 9 75 9 76 9 91 C 9 20 C 99 3 L 998 L 99 9 M 9 13 M 96 8 N904 N 9 05 N 90 7 P 90 9 R 97 7 R978
Wire Color
Description
A cc es s or yC ir cu it s( co nt d ' ) W H A/ CC ul ct hT oT he m r ost at SW W H Ha za dr SW T oT ur nS W Ha GN Tu n r S gi na lS WT oF al sh er W H Four Wh eel Drive So l GN P ark Brake Ala m r Sig OR P o we s r hi tf - R di eC on rt ol R el ay B U Wa sh er - A ux GN He ad al m He p lo w YL Fr on tW pi er S wi ct hJ um pe r Fr YL R ea ea rW pi er S wi ct hJ um pe r OR P ow er S ea tR el ay C on rt ol YL P ow er Se at Mo ot r G N Po we rS ea tH ea e t r Lighting Circuits RD Dome Lamp Pwr PK Rotary Beacon OR Sto p Lamp Y L Tu nr L amp - L ef t Tu GY Turn Lamp - Right PK F ol od L amp - F or nt GN Flood Lamp - Rea r OR Head L amp Basic PU Head Lamp Hi PU P ar k/ Ta li D / as h/ La mp B R T ail P / o si io t nL amp - L ef t YL T ai /l Po si it on L am p- R gi ht W H Flo od L amp - F or nt ( A t at ch ) YL Fog Lamp GY Fl oo dL am pR ea r( At a t ch ) WH Head LampSW To Work/Head Lamp Jumper Control Circuits GN X MS NS pe ed P ci ku p S gi na l YL X MS NS hi tf S ol 1 st a nd 2 nd G ea r BU XM SN S hi tf S ol 3 d r G ea r OR X MS NS hi tf S ol 4 th G ea r YL B uc ke tP os tioi ne rS ol G N XMS ND si co nn ec tSW WH C ou pl er E ng ag eS ol BU X MS NN eu tr al L oc kS gi PK Ri de C on rt ol Ri OR R di eC on rt ol S W OR A W SC ri cl eS te er /L o k c S ol WH L o ad e rR od E nd P e r ss ur eS W WH Powershift - RideControlManual BR P ar ar kB ar ke S WT oR el ay GY A W SS hu tO f S ol GN AW SR el ay C oi lt oD oi de AW OR A WS R el ay C oi lt o D oi d e BR A WS WS M od eS WT oP e r sSW OR A WS M od e S WT oR ea r S e t e rS WP wr YL A WS M od eS WT oR ea rS et er S WG nd BU A W SL ef tS e t er R el ay G nd PU A W SR gi ht S et er R el ay G nd BR A WS C ri cl eS te er /L o k c S ol G nd B R AW SL ef tS et er S olG nd BR A W SR i gh t S t ee r S o lG n d BR A WS S hu t O f S ol G nd BR S di eS hi tf L oc kS ol YL B ac kh oe S hu o t f S ol PU AW SL ef tS e t er S ol BU A WS R gi ht S et er S ol YL R eal yC o nt ac tT oD oi d eA s PK AW SL ef tS e t er R el ay C tr l WH AW SR gi ht S et er R el ay C rt l BR F WD WD S ol en oi dR n t GY R EV S ol R tn OR Da a t L ni k + ( CA T) B R Da at L ni k - ( CA T Da ) WH Po we s r hi tf - S ol R et ur n OR Ri de C on rt ol R el ay W H XMS NN eu tS W GY D ai gn o tsci I nd ci at o r- P ow er sh fi t W H Sh ut lte C rt lPw r OR Aux Hyd Sol B Au G N Au xH d Au y So lC PU D i od e t o A W SI n dci a o t r L a mp BU C ou pl er S wi tc hI n et rc on n ec t PU F o r w ar d H i gh S oel n odi OR Fow r ad r L o wS oel n oi d GN R ev er se L ow S ol en oi d PK A ut os hi tf D si ab el BU St ab lizi er l eg s w YL S h u t tel c o nt r ol j u mp e r
Harness And Wire Electrical Schematic Symbols Part Numbers For Connector Assembly
1
Plug
1 2
1 2
L-C12* 3E-5179
AG-C4* 111-7898
Electrical Schematic Symbols And Definitions
Receptacle Component Part Number
2 Wire, Cable, or Harness Assembly Identification
Pin or Socket Number
* C-C4* AG-C3 130-6795 130-6795
* AG-C4 111-7898 325-A135 PK-14
Pin
Typical representation of a Sure-Seal connector. The plug and receptacle contain both pins and sockets.
Typical representation of a Deutsch connector. The plug contains all sockets and the receptacle contains all pins.
L-C12* 3E-5179
T
Pressure Symbol
9X-1123
4 1 K P 5 2 L 5 2 3
Level Symbol
Flow Symbol
Normally open switch that will close with an increase of a specific condition (temp-press-etc.).
1
Harness identification code This example indicates wire 32 in harness "L'.
2
200-L32 BK-14
Socket
Single Wire Connector * Harness identification letter(s) and a serializing code. The "C" stands for connector and the number indicates which connector in the harness.
Temperature Symbol
Circuit Number Identification
Wire Color
Normally open switch that is closed due to an applied condition, and will open again with a specific decrease in that condition.
Normally closed switch that will open with an increase of a specific condition. Wire Gauge
Normally closed switch that is open due to an applied condition, and will close again with a specific decrease in that condition.
Electrical Schematic Symbols And Definitions FUSE - A - A component in an electrical circuit that will open the circuit if too much current flows through it. REED SWITCH - A - A switch whose contacts are controlled by a magnet. A magnet closes the contacts of a normally open reed switch; it opens the contacts of a normally closed reed switch.
T
SENDER - A - A component that is used with a temperature or pressure gauge. The sender measures the temperature or pressure. Its resistance changes to give an indication to the gauge of the temperature or pressure. RELAY (Magnetic Switch) - A relay is an electrical component that is activated by electricity. It has a coil that makes an electromagnet when current flows through it. The electromagnet can open or close the switch part of the relay. CIRCUIT BREAKER (C/B) - A - A component in an electrical circuit that will open the circuit if too much current flows through it. This does not destroy the circuit breaker and it can be reset to become part of the circuit again. SOLENOID - A - A solenoid is an electrical component that is activated by electricity. It has a coil that makes an electromagnet when current flows through it. The electromagnet can open or close a valve or move a piece of metal that can do work.
The circle indicates that the component has screw terminals and a wire can be disconnected from it.
No circle indicates that the wire cannot be disconnected from the component.
This indicates that the component has a wire connected to it that is connected to ground.
This indicates that the component does not have a wire connected to ground. It is grounded by being fastened to the machine.
1 0 4 D 5 V J 8 e , 2 g a P R 0 2 N E R