[{"data":1,"prerenderedAt":-1},["ShallowReactive",2],{"doc-seo-655211-105":3,"detail-sidebar-cat-0-en-105":80,"doc-detail-655211-en":130},{"code":4,"msg":5,"data":6},0,"ok",{"site_id":7,"language":8,"slug":9,"title":10,"keywords":11,"description":12,"schema_data":13,"social_meta":73,"head_meta":75,"extra_data":77,"updated_unix":79},105,"en","wiring-diagram-electronic-diesel-system-engine-602961","Wiring diagram electronic diesel system - Engine 602.961","","Wiring diagram details the electronic diesel system for engines 602.961, 603.96 and related Federal/California/Standard variants around model years 1986–1987. It maps components such as the refrigerant compressor, electromagnetic clutch, RPM/engine speed sensors, coolant temperature and altitude sensors, vacuum transducers for EGR and exhaust recirculation, and ELR/EGR resistance trimming. The diagram also specifies relay functions, control unit compressor shutoff, test connections for diagnostics, main and battery ground points, and links to engine-overload and A/C compressor cut-out switches.",{"@graph":14,"@context":72},[15,34,55],{"@type":16,"itemListElement":17},"BreadcrumbList",[18,23,27,31],{"item":19,"name":20,"@type":21,"position":22},"https://docshare.wps.com","Home","ListItem",1,{"item":24,"name":25,"@type":21,"position":26},"https://docshare.wps.com/document/","Document",2,{"item":28,"name":29,"@type":21,"position":30},"https://docshare.wps.com/document/technology/","Technology",3,{"item":32,"name":10,"@type":21,"position":33},"https://docshare.wps.com/document/wiring-diagram-electronic-diesel-system-engine-602961/655211/",4,{"url":32,"name":10,"@type":35,"image":36,"author":41,"headline":10,"publisher":44,"fileFormat":47,"inLanguage":8,"description":12,"dateModified":48,"datePublished":49,"encodingFormat":47,"isAccessibleForFree":50,"interactionStatistic":51},"DigitalDocument",{"url":37,"@type":38,"width":39,"height":40},"https://docshare.wps.com/thumbnails/wiring-diagram-electronic-diesel-system-engine-602961/655211.png","ImageObject",300,407,{"name":42,"@type":43},"lugxt","Person",{"url":19,"name":45,"@type":46},"DocShare","Organization","application/pdf","2026-10-30","2026-10-25",true,{"@type":52,"interactionType":53,"userInteractionCount":30},"InteractionCounter",{"@type":54},"ViewAction",{"@type":56,"mainEntity":57},"FAQPage",[58,64,68],{"name":59,"@type":60,"acceptedAnswer":61},"Which components are shown for the refrigerant compressor circuit?","Question",{"text":62,"@type":63},"The diagram lists the refrigerant compressor, electromagnetic clutch harness/wiring, ELR actuator, and relevant sensors and cut-out/microswitch functions depending on the engine variant.","Answer",{"name":65,"@type":60,"acceptedAnswer":66},"What diagnostic and test points are included?",{"text":67,"@type":63},"It includes test connections for diagnostics (8-pin) and terminal/test connection points such as TD/EDS entries and terminal block links (e.g., terminal 30/61 battery).",{"name":69,"@type":60,"acceptedAnswer":70},"How is engine overload protection handled in the wiring diagram?",{"text":71,"@type":63},"Engine overload protection is represented through specific switches and their connections to relays and auxiliary fan contacts, along with related temperature cut-out switches and switchover valve/vacuum amplifier wiring.","https://schema.org",{"og:url":32,"og:type":74,"og:title":10,"og:site_name":45,"og:description":12},"article",{"robots":76,"canonical":32},"index,follow",{"doc_id":78,"site_id":7},655211,1792960096,{"code":4,"msg":81,"data":82},"success",[83,87,91,95,100,104,109,114,119,122,126],{"id":22,"doc_module":4,"doc_module_name":25,"category_name":84,"show_sort_weight":85,"slug":86},"Story & 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\u003Cbr>075  \u003Cbr>C75  \u003Cbr>tl  \u003Cbr>br  \u003Cbr>torige-  \u003Cbr>5w  \u003Cbr>075  \u003Cbr>gn  \u003Cbr>g  \u003Cbr>075br/MS-  \u003Cbr>S  \u003Cbr>025  \u003Cbr>wio  \u003Cbr>S31/1  \u003Cbr>d+Q75bB/!  \u003Cbr>10Dirt  \u003Cbr>Q75sw/ge  \u003Cbr>-515e-…  \u003Cbr>W10  \u003Cbr>N6  \u003Cbr>,75  \u003Cbr>D  \u003Cbr>ge  \u003Cbr>N39  \u003Cbr>075611-  \u003Cbr>I  \u003Cbr>R18/2  \u003Cbr>W10  \u003Cbr>10rtge-  \u003Cbr>075  \u003Cbr>075biws  \u003Cbr>e  \u003Cbr>X48  \u003Cbr>Q75u…  \u003Cbr>07b9e  \u003Cbr>Q75tr/ge  \u003Cbr>C75  \u003Cbr>系  \u003Cbr>Q75br/ge-  \u003Cbr>bl  \u003Cbr>A9  \u003Cbr>Ik1  \u003Cbr>075r  \u003Cbr>4  \u003Cbr>075bn一  \u003Cbr>口75grige  \u003Cbr>Q75+  \u003Cbr>告  \u003Cbr>075ws  \u003Cbr>gn  \u003Cbr>Q75r1-  \u003Cbr>l1  \u003Cbr>2  \u003Cbr>075  \u003Cbr>Dr  \u003Cbr>ge  \u003Cbr>Sw  \u003Cbr>0.75  \u003Cbr>x62  \u003Cbr>5i  \u003Cbr>X18/14  \u003Cbr>g2  \u003Cbr>江1  \u003Cbr>R18/1  \u003Cbr>07swyn  \u003Cbr>275sw  \u003Cbr>7  \u003Cbr>以以式  \u003Cbr>B18  \u003Cbr>×92内  \u003Cbr>L3  \u003Cbr>v3  \u003Cbr>品  \u003Cbr>S30/1  \u003Cbr>P07-0548-59   |\n| --- |\n\nWiring diagram electronic diesel system Engine 602.961 Federal Model 201 Model Year 1987  \nA9Refrigerant compressorX18/1Plug connection,tail lamp wiringA9k1Electromagnetic clutchharness/compressor wiring harnessA9/1RPM sensorX48Sleeve terminal (solder connector)B2/1Air flow sensor potentiometerX62Plug connection,speed sensor,starter ring gearB11/4Coolant temperature sensor,idle speed controlX92Test connection for diagnostics(8-pin)B18Altitude sensorY3Kickdown valve automatic transmissionK1/1Relay,overvoltage protectionY22Actuator (ELR)L3Engine speed sensor,starter ring gearY31/1Vacuum transducer,exhaust gas recirculationL7Control rod travel sensoraTo terminal block X35,terminal 30/61(battery)N6Control unitcompressor shutoffbTo electrical centre connector U contact 5N39Contro unit (EDS)CTo relay,double auxiliary fan (K8/1)contact 5R18/1Resistance trimming plug (ELR)dTo electrical centre connector W contact 4R18/2Reference resistor (EGR)eTo relay,double auxiliary fan (K8/1)contact 4S25/5Temperature switch 105/115℃fTo tachometer (A1p7)S27A/C compressor/charge pressure cut-out9To switch,engine overload protection (S66)microswitchS30/1Kickdown switchS31Pressure switch,refrigerant compressorW10Battery ground  \nNote  \nGround points not shown go to engine ground orbattery ground.  \nWiring diagram electronic diesel system Engine 603.96 Model 124.133/193 Model Year 1987  \nB2/1Air flow sensor potentiometerB11/4Coolant temperature sensor (EDS)Altitude sensorK1Relay,over-voltage protectionL3Engine speed sensor,starter ring gearSpeed sensor,refrigeration compressorL7Control rod travel sensorN6Control unit,compressor cutoffN39Control unit (EDS)R18/1Resistance trimming plug(ELR)S25/11 Temperature switch 105-120℃S27/1 A/C compressor cut-out microswitchS30/1 Kickdown switch  \nX26Plug connection,interior/engineX29/4Test connection(TD,EDS)Terminal block,terminal 30/61 batteryX48Connector sleeve (soldered connector in wiringharness)X62Plug connection,speed sensor,starter ring gearY3Switch-over valve,automatic transmissionY5/1Electromagnetic clutch,refrigerant compressorY22Actuator (ELR)Y31Vacuum transducer,air recirculation valveY31/1Vacuum transducer EGRW1Main ground behind instrument clusterW10Battery groundTo relay,auxiliary fan (k9)contact 5  \nWiring diagram electronic diesel system Engine 603.96 Federal Model 126 Model Year 1986  \nB2/1Air flow sensor potentiometerX11Diagnostic socket/terminal block Terminal TDCoolant temperture sensor(EDS)X26Plug connection,interior/engineB18Altitude sensorX29/4Test connection TD,EDSK1Relay,over-voltage protectionX35Terminal block,termina 30/61 batteryL3Speed sensor,starter ring gearX48Sleeve terminal (solder connector in wiringL4Speed sensor,refrigerant compressorharness)L7Control rod travel sensorX62Plug connection,engine speed sensor,starterN6Control unit,compressor shutoffring gearN39Control unit (EDS)Y5/1Electromagnetic clutch,refrigerant compressorR18/1Resistance trimming plug(ELR)Y22ELR actuatorR18/2Reference resistor (EGR)Y30Switch-over valve,engine overload protectionTemperature switch 105-120℃X31/1Vacuum transducer,exhaust gas recrculationMicroswitch,compressor shutoffW1Main ground behind","cbCaimIui3Gj2hUg","https://ap.wps.com/l/cbCaimIui3Gj2hUg","pdf",576032,"English","# Wiring diagram electronic diesel system\n## Engine 602.961 and Engine 603.96 variants","[{\"question\":\"Which components are shown for the refrigerant compressor circuit?\",\"answer\":\"The diagram lists the refrigerant compressor, electromagnetic clutch harness/wiring, ELR actuator, and relevant sensors and cut-out/microswitch functions depending on the engine variant.\"},{\"question\":\"What diagnostic and test points are included?\",\"answer\":\"It includes test connections for diagnostics (8-pin) and terminal/test connection points such as TD/EDS entries and terminal block links (e.g., terminal 30/61 battery).\"},{\"question\":\"How is engine overload protection handled in the wiring diagram?\",\"answer\":\"Engine overload protection is represented through specific switches and their connections to relays and auxiliary fan contacts, along with related temperature cut-out switches and switchover valve/vacuum amplifier wiring.\"}]","Wiring diagram electronic diesel system - Engine 602.961 | PDF",25]