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Shop manual máy đào HuynDai R250: An toan, cấu trúc, sơ đồ điện, thủy lực,
6-24GROUP 3 ELECTRICAL SYSTEM1. WHEN STARTING SWITCH IS TURNED ON, MONITOR PANEL DISPLAY DOES NOT APPEAR・Before disconnecting the connector, always turn the starting switch OFF.・Before carrying out below procedure, check all the related connectors are properly inserted andshort of fuse No.7.・After checking, insert the disconnected connectors again immediately unless otherwise specified.YESYESNONOCheck voltagebetween CN-5(3) and chassisCheck voltagebetween CN-56(1) and chassisYESNO20 ~ 32V0VCheck voltageStarting switch : ONVoltage : 20~32VCause RemedyDefective clucter Disconnection inwiring harness orpoor contactbetween CN-5(3)-CN-56(1)Disconnection inwiring harness orpoor contactbetween CN-5(3) and fuseNo.7ReplaceRepair orreplace(After clean)Repair orreplace(After clean)25076ES01 6-252. COMMUNICATION ERROR "Co : Err" FLASHES ON THE CLUSTER・Before disconnecting the connector, always turn the starting switch OFF.・Before carrying out below procedure, check all the related connectors are properly inserted.・After checking, insert the disconnected connectors again immediately unless otherwise specified.Cause RemedyDefective controllerDisconnection inwiring harness orpoor contactbetween CN-56(3,4) CN-5(10,11) Disconnection inwiring harness orpoor contactbetween CN-5(10,11)-CN-50(29,30) ReplaceRepair or replace(After clean)Repair or replace(After clean)30CLUSTERPOWER IG(24V)GNDRXTX234CN-5691011CN-5CN-50*4V*12VCONTROLLER29KEY ONCheck voltagebetween CN-5(10,11)andchassisYESYESNONOCheck voltagebetween CN-56(3,4) and chassisYESNO*4V0V*12V0VCheck voltage29076ES02 6-263. BATTERY CHARGING WARNING LAMP LIGHTS UP(Starting switch : ON)・Before disconnecting the connector, always turn the starting switch OFF.・Before carrying out below procedure, check all the related connectors are properly inserted.・After checking, insert the disconnected connectors again immediately unless otherwise specified.Cause RemedyDefective controllerDisconnection inwiring harness orpoor contactbetween CN-51(9)-CN3(3)Disconnection inwiring harness orpoor contactbetween CN-3(3)-alternator terminal"I"Defective alternatorReplaceRepair or replace(After clean)Repair or replace(After clean)ReplaceYESYESYESNONONOVoltage : 20~32VEngine : RunningCheck voltagebetween alternatorterminal "I" andchassisCheck voltagebetween CN-3(3) and chassisCheck voltagebetween CN-51(9) and chassisYESNO20 ~ 32V0VCheck voltage25076ES02 6-274. WHEN COOLANT OVERHEAT WARNING LAMP LIGHTS UP(Engine is started)・Before disconnecting the connector, always turn the starting switch OFF.・Before carrying out below procedure, check all the related connectors are properly inserted.・After checking, insert the disconnected connectors again immediately unless otherwise specified.Cause RemedyCoolant overheat(110°C±2°C)Defective tempsensorShort circuit inwiring harnessDefective ControllerCheck enginecooling systemReplaceRepair or replace(After clean)Replace5CN-331CONTROLLERCN-51WATER TEMP SENDER63321CD-8CStarting switch : ONEngine : StartDoes display gooff whendisconnect CD-8? Resistancebetween CN-51(31,33) is 0~1YESYESYESNONONODisconnect CN-51KEY OFFDisconnect CD-8Resistancebetween CD-8(1,2) is in rangeof 120~150Ω?25076ES03 6-285. WHEN AIR CLEANER WARNING LAMP LIGHTS UP(Engine is started)・Before disconnecting the connector, always turn the starting switch OFF.・Before carrying out below procedure, check all the related connectors are properly inserted.・After checking, insert the disconnected connectors again immediately unless otherwise specified.Cause RemedyClogged air filter ordefective switchShort circuit inwiring harnessDefective controllerCheck filter orreplace switchRepair or replace(After clean)Replace20CN-50AIR CLEANER SWITCHCD-10PaCONTROLLERStarting switch : ONEngine : StartDoes display gooff whendisconnect CD-10?Check resistancebetween CN-51(16) and chassisNOYESNOYESStarting switch : OFFDisconnect CN-51YESNOMAX 1ΩMIN 1MΩCheck resistance165125036EL05 6-296. WHEN ENGINE OIL PRESSURE WARNING LAMP LIGHTS UP(Engine is started)・Before disconnecting the connector, always turn the starting switch OFF.・Before carrying out below procedure, check all the related connectors are properly inserted.・After checking, insert the disconnected connectors again immediately unless otherwise specified.Cause RemedyEngine oil leakage,or defective switchDefective controllerDisconnection inwiring harness orpoor contactbetween CN-51(4)-CD-18Check engine oillevel or replaceswitchReplaceRepair or replace(After clean)ENGINE OIL PRESSURE SWITCHCD-18CN-21CN-514PaCONTROLLERNOYESYESNOStarting switch : ONEngine : StartDoes display go offwhen disconnectCD-18?Check resistancebetween CN-51(4) and chassisStarting switch : OFFDisconnect CN-51YESNOMAX 1ΩMIN 1MΩCheck resistance29076ES03 6-307. WHEN HYDRAULIC OIL TEMPERATURE WARNING LAMP LIGHTS UP(Engine is started)・Before disconnecting the connector, always turn the starting switch OFF.・Before carrying out below procedure, check all the related connectors are properly inserted.・After checking, insert the disconnected connectors again immediately unless otherwise specified.Cause RemedyHigh temperatureDefective tempsensorShort circuitDefective controllerCheck hydraulicoil temperature(100°C±2°C) ,replaceReplaceCheck and repairReplaceHYDRAULIC OIL TEMPERATURE SENDERCD-1C21CN-5134CONTROLLER31Starting switch : ONEngine : StartDoes display gooff whendisconnect CD-1?Resistancebetween CN-51(31,34) is 0~1Ω? Starting switch : OFFDisconnect CN-51Resistancebetween CD-1(1,2) is in rangeof 130~150Ω?Starting switch : ONDisconnect CD-1YESYESYESNONONO29076ES04 6-318. WHEN COOLANT TEMPERATURE GAUGE DOES NOT OPERATE・Before disconnecting the connector, always turn the starting switch OFF.・Before carrying out below procedure, check all the related connectors are properly inserted.・After checking, insert the disconnected connectors again immediately unless otherwise specified.Cause RemedyDisconnection inwiring harness orpoor contactbetween CN-51-CD-8Defective controllerDefective tempsensorDefective clusterRepair or replace(After clean)ReplaceReplaceReplace5CN-331CONTROLLERCN-51WATER TEMP SENDER63321CD-8CYESYESYESNONONOTemperatureWhite range(~29°C)Green range(30~105°C)Red range(105°C~)Check TableItemUnit Resistance(Ω)Tolerance(%)1646~±20 1645~158±20 ~139±20Starting switch : ONDoes the gaugelight up anddown at lampcheck?Is resistancebetween CN-51(31) and (33)over 2kΩ?Starting switch : OFFDisconnect CN-50See TableCheck resistancebetween CN-2(5)and (6)Green rangeRed rangeWhite range25076ES03 6-329. WHEN FUEL GAUGE DOES NOT OPERATE(Check warning lamp ON/OFF)・Before disconnecting the connector, always turn the starting switch OFF.・Before carrying out below procedure, check all the related connectors are properly inserted.・After checking, insert the disconnected connectors again immediately unless otherwise specified.FUEL SENDERCD-224CN-513121CONTROLLERLevelWhite range Green range Red rangeCheck TableItemUnit Resistance(Ω)Tolerance(%)700~601±5600~101±5~100±5Cause RemedyDisconnection inwiring harnessDefective controllerDefective fuelsensorDefective clusterCheck and repairReplaceReplaceReplaceYESYESStarting switch : ONDoes the gaugelight up anddown at lampcheck?Is resistancebetween CN-51(24) and (31)over 1kΩ?Starting switch : OFFDisconnect CN-51Disconnect CD-2See TableCheck resistancebetween CD-2(1)and (2)YESNONONOGreen rangeRed rangeWhite range29076ES06 6-3310. WHEN SAFETY SOLENOID DOES NOT OPERATE・Before disconnecting the connector, always turn the starting switch OFF.・Before carrying out below procedure, check all the related connectors are properly inserted andshort of fuse No.24.・After checking, insert the disconnected connectors again immediately unless otherwise specified.Cause RemedyHydraulicmalfunctionDefective solenoidDefective switchDisconnection inwiring harness orpoor contactbetween CS-4(C)-CN-68(2)Disconnect inwiring harness orpoor contactbetween CN-4(8)-CN-68(2)Disconnection infuse No. 24Check hydraulicsystemReplaceReplaceRepair or replace(After clean)Repair or replace(After clean)ReplaceCheck voltagebetween CN-68(1) - CN-68(2) YESYESNOSafety lever : OFFStarting switch : ONVoltage : 20~30VCheck operationof solenoidSafety lever : ON-OFFStarting switch : ONVoltage : 20~30VDisconnect CN-4Start switch : ONVoltage : 20~30VDisconnect CN-4Starting switch : ONVoltage : 20~30VSafety stateCheck voltagebetween CN-68(2)with chassisCheck voltagebetween CS-4(C)and chassisCheck voltagebetween CN-4(8)and chassisYESYESYESNONONONO25076ES04 [...]... motor and controller check voltage YES CN-141(7) and chassis, CN-21(4) and chassis Starting switch : OFF Voltage : 20~30V Check continuity NO between CN-141(2)-CN-116(4), CN-141(9)-CN-116(12), CN-141(10)-CN-116(15), CN-141(5)-Chassis , Check wiper CN-141(1)-CN-21(5), motor resistance CN-141(3)-CN-21(6), YES between CN-21 CN-141(4)-CN-21(2), (2)-CN-21(6) CN-141(13)-CN-21(3) Resistance : 2~4Ω Defective switch... Voltage : 20~30V NO between CS-2 (2) and chassis 30 87 NO H 87a 87 85 87a CR-35 MASTER SWITCH FUSE CN-60 Replace 2 Disconnection in wiring harness or poor contact between CS-2(1)CN-8(12)-CN-60CR-1-Battery DO-2 1 Replace 2 Defective start switch 1 NO NO Specific gravity : MIN 1.28 Voltage : MIN 24V Replace Disconnection in wiring harness or poor contact between CS-2(2)CN-8(11 )- DO-2(1) TO STARTER NO.1 Voltage... : ON-OFF Voltage : 20~30V 2 Defective bulb NO 2 CL-6 Repair or replace Disconnection in wiring harness or (After clean) poor contact between CN-7(2) -CL-5(2) and CL-6 (2) CN-7 2 Repair or replace Disconnection in wiring harness or (After clean) poor contact between CN-116 (2,3)-CN-7(2) 8 10 Disconnection in Repair or replace wiring harness or (After clean) poor contact between CN-11 (10,11)-CN-7(8)... between CN-2(4)CN-79(2) Defective relay FUSE Replace 9 NO.12 CPU CONTROLLER CN-92 Repair or replace (After clean) 11 CN-50 START RY START SAFETY RY Replace NO Disconnection in Repair or replace wiring harness or (After clean) poor contact between CR-5(30)CR-23 30 M 1 87 85 85 87 87a STARTER B+ 2 86 86 30 YES ⓒ 2 DO-1 1 NO.1 DO-2 CN-51 YES Check voltage between CR-23 and chassis CR-1 Disconnection in... Voltage : 20~30V Defective bulb Replace CN-7 Repair or replace Disconnection in wiring harness or (After clean) poor contact between CN-7(1)CL-4(2) 1 7 NO Disconnection in wiring harness or poor contact between CN-116(1)-CN7(1) Disconnection in wiring harness or poor contact between CN-116 (9)-CN-7(7) Repair or replace (After clean) 10 Repair or replace (After clean) CN-116 1 2 3 4 5 6 7 8 9 10 11 12 13 14... motor Defective battery Remedy B Cause YES I,O 1 2 3 4 5 6 9 II I O H START SWITCH CN-3 CR-23 M CN-45 87a CR-5 FUEL CUT -OFF 3 Defective fuel cutoff solenoid Disconnection in NO wiring harness or poor contact between CN-2(5) and Fuse No.12 3 E 4 Replace 2 S 1 I 5 Repair or replace (After clean) CN-2 CN-79 25076ES06 6 - 35 13 WHEN STARTING SWITCH ON DOES NOT OPERATE ・Before disconnecting the connector,... (After clean) or poor contact between CN141(7)-Fuse, CN-21(4)-Fuse NO Check voltage CN-141(6)-and YES chassis Starting switch : ON Voltage : 20~30V Replace 1)Recheck fuse Replace NO.11 2)Disconnection in Repair or replace wiring harness or (After clean) poor contact between CN116(6)-Fuse between CN116(13)-Chassis Defective switch panel Check voltage CN-116 (12) and chassis Washing ⓑ NO NO Intermittent... and specific gravity of battery 30 86 86 CN-95 Check voltage between CS-2(1) and chassis ACC BR POWER RY 1 2 YES Voltage : 20~30V C ST CS-2 85 YES Check voltage B CN-8 BATTERY RY YES Check voltage between DO-2 (1) and chassis 12 Repair or replace Disconnection in wiring harness or (After clean) poor contact between DO-2(1)CR-1 or defective battery relay 2 3 1 CR-1 YES 11 Remedy 4 5 6 10 Cause I,O 1 2... between CR-5 (86) and CN-8(9) Starting switch : ON ⓐ C ST 87a 87 85 87a CN-60 Starting switch : ON 85 ⓐ, ⓑ 2 Starting switch :START Check operation of start safety NO relay 87 CR-35 NO Starting switch : START 30 86 86 1 Check operation 30 Defective start relay Replace NO Check voltage YES between CR-5 (86) and chassis NO of start relay CS-2 POWER RY CN-95 Starting switch : START SPEC : 20~30V CN-8 1 2... poor contact between CN-141 (11 )- CS-53 Check operation wiper cut switch Front sliding door open-close Remedy YES 1) Recheck fuse Replace NO.13 2) Disconnection Repair or replace CN-141(6)-Fuse (After clean) ⓑ Disconnection in Repair or replace wiring harness or (After clean) poor contact NO YES Defective wiper motor Replace Defective wiper motor controller Replace 25076ES08 6 - 37 15 WHEN STARTING . CN-141(2)-CN-116(4),CN-141(9)-CN-116(12),CN-141(10)-CN-116(15),CN-141(5)-Chassis , CN-141(1)-CN-21(5),CN-141 (3) -CN-21(6),CN-141(4)-CN-21(2),CN-141( 13) -CN-21 (3) IntermittentStarting. RYCR-1CN-50CPU CONTROLLER11CN-9287a3086878587aDO-112FUSENO.1CN-519M3086878587a30 86858787aCR -3 5 POWER RY321ESICN- 234 5FUSENO.12FUSIBLE LINK1212CN-60CN-95 6 -3 5Cause