Shop manual máy xúc lất HuynDai HL760 Phần hệ thống điện
7-781. 1. WHEN STARTING SWITCH IS TURNED ON, CLUSTER WHEN STARTING SWITCH IS TURNED ON, CLUSTER AND MONITORAND MONITOR LAMP DOES NOT LAMP DOES NOT LIGHT UPLIGHT UP·Before carrying out below procedure, check all the related connectors are properly inserted and the fuse [CN-37] No.16 is not blown out and ON/OFF of bulb.·After checking, connect the disconnected connectors again immediately unless otherwise specified.GROUP 6 TROUBLESHOOTINGGROUP 6 TROUBLESHOOTING Cause RemedyDefective clusterDefective monitorDisconnection in wiring harness or poor contact between CN-56 (1), CN-57 (1) and CN-4 (27)Disconnection in wiring harness or poor contact between CN-4 (27) and fuse No.16ReplaceReplaceRepair or replace(after clean)Repair or replace(after clean)YESNOYESNOCheck voltage between CN-4 (27) and chassisCheck voltage between CN-56 (1), CN-57(1) and chassis1CN-4CN-56CLUSTER27FUSE[CN-37]No.161CN-57MONITORCheck voltage75797EL24YES 20 ~ 30 VNO 0 V 7-79NONOYESYESNOYESVoltage : 26~30VStarting switch : ONVoltage : 26~30VVoltage : 27.5~30VNO2. WHEN BATTERY LAMP LIGHTS UPWHEN BATTERY LAMP LIGHTS UP (engine is started)·Before carrying out below procedure, check all the related connectors are properly inserted.·After checking, connect the disconnected connectors again immediately unless otherwise specified. Cause RemedyDefective controllerDisconnection in wiring harness or poor contact between CN-58A (B36) and CN-6 (49)Disconnection in wiring harness or poor contact between CN-13 (8) and CN-6 (49)Disconnection in wiring harness or poor contact between CN-13 (8) and alternator terminal " 2 "Defective alternatorReplaceRepair or replace(after clean)Repair or replace(after clean)Repair or replace(after clean)ReplaceCheck voltage between alternator terminal "2" and chassisCheck voltage between CN-6 (49) and chassisCheck voltage between CN-58A (B36) and chassisCheck voltage between CN-13 (8) and chassisCN-58AB36CONTROLLER(MCU)49CN-68CN-13ALTERNATOR" 2 " TERMINALYES Check valtage75797EL30YES 20 ~ 30 VNO 0 V 7-803. WHEN PARKING SOLENOID DOES NOT WORK3. WHEN PARKING SOLENOID DOES NOT WORK·Before carrying out below procedure, check all the related connectors are properly inserted and the fuse [CN-36] No.15 is not blown out.·After checking, connect the disconnected connectors again immediately unless otherwise specified.YESNOStarting switch : ONParking switch : ON-OFFVoltage : 20~30V Cause RemedyDefective parking brake solenoidDisconnection in wiring harness or poor contact between CS-17 (4) and CN-5 (30)Disconnection in wiring harness or poor contact between CN-12 (13) and CN-5 (30)Disconnection in wiring harness or poor contact between CN-12 (13) and CN-71 (2)Difective parking switchDisconnection in wiring harness or poor contact between CS-17 (7) and Fuse No.15ReplaceRepair or replace (after clean)Repair or replace (after clean)Repair or replace (after clean)ReplaceRepair or replace (after clean)Check voltage between CN-71 (2) and chassisNOVoltage : 20~30VYES75797EL31CS-174PARKING SWITCH8721CN-71FUSE[CN-36]No.1530CN-513CN-12Check voltage between CN-5(30) and chassisCheck voltage between CS-17(4) and chassisNOYESNOYESCheck voltage between CN-12 (13) and chassisNOYESCheck voltage between CS-17(7) and chassisVoltage : 20~30VVoltage : 20~30VVoltage : 20~30V 7-81NOYESStarting switch : ONParking switch : ONVoltage : 20~30V4. TRANSMISSION IS NOT RETURNED TO NEUTRAL WHEN PARKING BRAKE IS APPLIED4. TRANSMISSION IS NOT RETURNED TO NEUTRAL WHEN PARKING BRAKE IS APPLIED·Before carrying out below procedure, check all the related connectors are properly inserted and the fuse [CN-37] No.15 (T/M control unit) and [CN-36] No.15 are not blown out.·After checking, connect the disconnected connectors again immediately unless otherwise specified. Cause RemedyDefective T/M control unitDisconnection in wiring harness or poor contact between CN-157 (21) and CS-17(3)Defective switchDisconnection in wiring harness or poor contact between CS-17 (7) and fuse No.15ReplaceRepair or replace(after clean)ReplaceRepair or replace(after clean)Check voltage between CN-157 (21) and chassisNOVoltage : 20~30VParking switch : ONCheck voltage between CS-17 (3) and chassisYESNOYESVoltage : 20~30VCheck voltage between CS-17 (7) and chassisCS-173PARKING SWITCH87FUSE[CN-36]No.1521CN-157T/M CONTROL UNITCheck resistance75797EL32YESMAX 1ΩNOMIN 1MΩ 7-82YESNOStarting switch : ONParking switch : OFFClutch cut-offswitch : ON5. MACHINE DOES NOT TRAVEL5. MACHINE DOES NOT TRAVEL·Before carrying out below procedure, check all the related connectors are properly inserted and the fuse [CN-37] No.15 (transmission controller) is not blown out.·After checking, connect the disconnected connectors again immediately unless otherwise specified.·Wiring diagram : See page 7-17. Cause RemedyDefective clutch cut-off mode switchDefective T/M control unitDefective T/Mcontrol unitDefective parking switchDisconnection wiring harness or poor contact between CN-157 (21) and CS-17 (3)ReplaceReplaceReplaceReplaceRepair or replace(after clean)Is voltage between CN-157(21) and chassis 20-28V?Is there continuity between CS-17(3) and chassis?Is there continuity between CN-157 (38) and chassis?YESNOCheck resistance between CD-5 and chassisYESNONOYESCheck resistanceYESMAX 1ΩNOMIN 1MΩ 7-83Cause RemedyDefective front wiper motorPoor connection of chassisDisconnection in wiring harness or poor contact between CN-21(5)and CN-4(1)Defective wiper switch or disconnection in wiring harness or poor contact between CS-12(4) and CN-4(43).Disconnection in wiring harness or poor contact between CN-4(45) and fuse [CN-36]No.14Discomection in wiring harness or poor contact between CS-12(6) and CN-4(45).ReplaceReplaceRepair or replace (after clean)Repair or replace (after clean)Repair or replace(After clean)Repair or replace (After clean)NOYESNONOYESYESNOVoltage : 20~30VStarting switch : ONWiper switch : 1stVoltage : 20~30VStarting switch : ONWiper switch : OFF6. WHEN STARTING SWITCH IS TURNED ON, WIPER MOTOR DOES NOT OPERATE6. WHEN STARTING SWITCH IS TURNED ON, WIPER MOTOR DOES NOT OPERATE·Before carrying out below procedure, check all the related connectors are properly inserted and the fuse [CN-36] No.14 is not blown out.·After checking, connect the disconnected connectors again immediately unless otherwise specified.Check voltage CS-12 (6)Voltage : 20~30VStarting switch : ONWiper switch : 1stVoltage : 20~30VStarting switch : ONWiper switch : 1stYESNOCN-36SEAT HEAT / AIR-RIDESERVICE SOCKET 2WIPERPARK, PILOT CUTJOYSTICK-DETENTPRE-HEATFAN REVERSE, ATT.RIDE CONTROLJOYSTIC_SWITCHSERVICE SOCKET 1FUSE BOX20A20A20A20A10A30A20A10A10A20A11121314151617181920MULTI FUNCTION SWITCHCS-12CS-11CS-576543218123456JIIIOCWOJIIIRLCB+ROLFLoHiBWGCHiYGrRWBYLBViG143526HO4W6Y7Lo32BGBW8WB5BGrLOrBr31524CR-4WIPER RY HIWIPER RY LOCR-2641523315244152312344459604145254243CN-42640BrBrYYYLW24BRWBBrBrGGWIPWE RLYB02WWASH SIGA31CN-58AMCUCN-21FRONT WIPER654321M3 E2Pf1 B5 Lo4 HiYGBLRYLWBRWWIPER INT SIGA23Check voltage between front wiper motor and chassisCheck voltage between CN-21(5) and chassisCheck voltage between CS-12 (4), CN-4 (43) and chassisYES75797EL33Check voltage between CN-4 (45) and chassis. 7-847. WHEN STARTING SWITCH "ON" DOES NOT OPERATE7. WHEN STARTING SWITCH "ON" DOES NOT OPERATE·Before carrying out below procedure, check all the related connectors are properly inserted and and the fuse No.16 is not blown out. ·After checking, connect the disconnected connectors again immediately unless otherwise specified.CauseRemedyDefective cable assemblyShort circuit or defect of fusible link or defective battery relayDisconnection in wiring harness or poor contact between CS-2 (2) - CN-5(37)-CS-74-CR-1. Disconnection in wiring harness or poor contact between fuse [CN-37] No. 3 and CS-2 (1) or defect of start switchBattery capacity too lowRepair or replace(after clean)ReplaceRepair or replace(after clean)Repair or replace(after clean)Repair or replace(after clean)NOCheck voltage and specific gravity of batteryYESNOYESSpecific gravity : MIN 1.28Voltage : MIN 24VVoltage : 20~30VVoltage : 20~30VYESNOVoltage : 20~30VNO20A1 5A230A310A410A620A710A810A915A1010A5TURN LAMPCASSETTE / ROOM LAMPSTART KEY SWITCHTCU 24V BATTERYECM 24V BATTERYMCU 24V BATTERYAIR-CON / HEATER 2CLUSTER 24V BATTERYNC_SPARE 10ANC_SPARE 15A12342324384748252627283637CN-53R12BATTERY RYCR-1DO-221CN-60FUSIBLE LINK80R80RBB10510621CS-74A21CS-74B3R3RRWRWBATTERYRWRW2RW2RW3R3RCS-74MASTER SWR61234561530I0,IH42BHBRACCSTCIISTART SWITCHCS-2RWRCN-37FUSE BOXCheck voltage between CN-60(1) and chassisCheck voltage between CR-1 and chassisCheck voltage between CS-2 (1)[and CS-2(2)]and chassis75797EL34YES 7-85Cause RemedyDefective lampDisconnection in wiring harness or poor contact between CL-6 (2), CL-5 (2), CL-22 (2), CL-23 (2) and CN-7 (14), CN-6(33).Disconnection in wiring harness or poor contact between CN-7 (14) -CR-3 (5) and CN-6 (33) - CR-55 (5)Defective work lamp relayDisconnection in wiring harness or poor contact between CR-3 (3), CR-55 (3) and fuse [CN-36] No.2, 3Short circuit of fuseReplaceRepair or replace (after clean)Repair or replace (after clean)Replace relayRepair or replace (after clean)Replace8. WHEN STARTING SWITCH IS TURNED ON, WORK LAMP DOES NOT LIGHTS UP8. WHEN STARTING SWITCH IS TURNED ON, WORK LAMP DOES NOT LIGHTS UP·Before carrying out below procedure, check all the related connectors are properly inserted, and the fuse [CN-36] No.2, 3 is not blown out.·After checking, connect the disconnected connectors again immediately unless otherwise specified.Voltage : 20~30VStarting switch : ONVoltage : 20~30VStarting switch : ONCheck voltage between CR-3(3), CR-55(3) and chassisNONONOVoltage : 20~30VStarting switch : ONVoltage : 20~30VStarting switch : ONNOVoltage : 20~30VStarting switch : ONYESYESGWCN-36BEACONWORK LAMP_FRONTWORK LAMP_REARILL.LAMPHEAD LAMPBACK.STOP LAMPCN-56CLUSTERYCR-33152441523FR WORK LAMP RYCR-553152441523RR WORK LAMP RYGWYBB12341415567CN-9W123413141557CN-71661212OPT12122121WWWWRWRWRW345960313233CN-635101112CN-14892121RWRWBBBBBBBBYWORK LAMP SWCS-361213476911121211394671ILL & HEAD LAMP SWCS-2112134769111212113946715960464748CN-445YVWVWLOrLOrLOr363534FUSE BOXCN-37ILLUMINATION 1ILLUMINATION 2 5A 5A1920LOrILLUMINATION17CN-57MONITORILLUMINATION18RRRRR262524BBCL-23CL-22CL-33CL-32CL-36CL-35CL-6CL-5FR WORKLAMP,LHFR WORKLAMP,RHFR WORK LAMPRR WORK LAMPRR WORK LAMP,LHRR WORK LAMP,RHFUSE BOX12346510A20A20A20A10A20ACheck voltage between CN-7(14), CN-6(33) and chassisCheck voltage between fuse [CN-36] No. 2, 3 and chassisCheck voltage between CR-3(5), CR-55(5) and chassisYESNOCheck voltage between each lamp and chassisYESYES75797EL35 . 15A1234232438474825 262 728 363 7CN-53R12BATTERY RYCR-1DO-221CN -6 0 FUSIBLE LINK80R80RBB1051 062 1CS-74A21CS-74B3R3RRWRWBATTERYRWRW2RW2RW3R3RCS-74MASTER SWR61234 561 530I0,IH42BHBRACCSTCIISTART. RYGWYBB12341415 567 CN-9W123413141557CN-7 166 1212OPT12122121WWWWRWRWRW345 960 313233CN -6 3 5101112CN-14892121RWRWBBBBBBBBYWORK LAMP SWCS- 361 2134 769 1112121139 467 1ILL &