MTC Air Conditioner Spezifikationen

MTC-1MANUAL AIR CONDITIONERJ AIR CONDITIONERCONTENTSCDEFGHIKLMSECTION ABMTCPRECAUTIONS ... 3Pr

MTC-10PRECAUTIONSSERVICE COUPLERSNever attempt to connect HFC-134a (R-134a) service couplers to anCFC-12 (R-12) A/C system. The HFC-134a (R-134a) coup

PREPARATIONMTC-11CDEFGHIKLMABMTCPREPARATION PFP:00002Special Service ToolsEJS001ZUThe actual shapes of Kent-Moore tools may differ from those of speci

MTC-12PREPARATIONHFC-134a (R-134a) Service Tools and EquipmentEJS001ZVNever mix HFC-134a (R-134a) refrigerant and/or its specified lubricant with CFC-

PREPARATIONMTC-13CDEFGHIKLMABMTC(J-42220)Fluorescent dye leak detectorPower supply: DC 12V (Battery ter-minal)For checking refrigerant leak when fluor

MTC-14PREPARATIONCommercial Service ToolEJS001ZWFor details of handling methods, refer to the Instruction Manual attached to the service tool.(J-39699

REFRIGERATION SYSTEMMTC-15CDEFGHIKLMABMTCREFRIGERATION SYSTEM PFP:KA990Refrigeration CycleEJS001ZXREFRIGERANT FLOWThe refrigerant flows in the standar

MTC-16REFRIGERATION SYSTEMComponent LayoutEJS001ZYWHA331

LUBRICANTMTC-17CDEFGHIKLMABMTCLUBRICANT PFP:KLG00Maintenance of Lubricant Quantity in CompressorEJS001ZZThe lubricant in the compressor circulates thr

MTC-18LUBRICANTLubricant Adjusting Procedure for Components Replacement Except CompressorAfter replacing any of the following major components, add th

LUBRICANTMTC-19CDEFGHIKLMABMTCDo not add this 5 m (0.2 US fl oz, 0.2 Imp fl oz) of lubricant if only replacing the compressor.RHA065DD

MTC-2ELECTRICAL COMPONENTS INSPECTION ... 47Insufficient Cooling ... 49TROUBLE DIAGNOSIS PROCEDURE FO

MTC-20AIR CONDITIONER CONTROLAIR CONDITIONER CONTROLPFP:27500Control OperationEJS00200FAN CONTROL KNOBThis knob turns the fan ON and OFF, and controls

AIR CONDITIONER CONTROLMTC-21CDEFGHIKLMABMTCDischarge Air FlowEJS00201*1 MTC-30WJIA0280E

MTC-22TROUBLE DIAGNOSISTROUBLE DIAGNOSISPFP:00004How to Perform Trouble Diagnoses for Quick and Accurate RepairEJS00202WORK FLOWSYMPTOM TABLE*1: MTC-3

TROUBLE DIAGNOSISMTC-23CDEFGHIKLMABMTCComponent LocationEJS00203ENGINE COMPARTMENTKA24DE ModelsWJIA0674E

MTC-24TROUBLE DIAGNOSISVG33E ModelsWJIA0675E

TROUBLE DIAGNOSISMTC-25CDEFGHIKLMABMTCVG33ER ModelsWJIA0676E

MTC-26TROUBLE DIAGNOSISPASSENGER COMPARTMENTWJIA0277E

TROUBLE DIAGNOSISMTC-27CDEFGHIKLMABMTCWiring Diagram — Heater —EJS00204WJWA0037E

MTC-28TROUBLE DIAGNOSISWiring Diagram — A/C —EJS00205WJWA0038E

TROUBLE DIAGNOSISMTC-29CDEFGHIKLMABMTCWJWA0092E

PRECAUTIONSMTC-3CDEFGHIKLMABMTCPRECAUTIONS PFP:00001Precautions for Supplemental Restraint System (SRS) “AIR BAG” and “SEAT BELT PRE-TENSIONER”EJS001Z

MTC-30TROUBLE DIAGNOSISOperational CheckEJS00206The purpose of the operational check is to confirm that the system operates as it should. The systems

TROUBLE DIAGNOSISMTC-31CDEFGHIKLMABMTC3. Check Recirculation1. Press recirculation switch.Recirculation indicator should light.2. Listen for intake do

MTC-32TROUBLE DIAGNOSISMode DoorEJS00207TROUBLE DIAGNOSIS PROCEDURE FOR MODE DOORSymptom:● Mode door does not change.Inspection FlowWHA325*1: MTC-21 *

TROUBLE DIAGNOSISMTC-33CDEFGHIKLMABMTCMODE DOOR CONTROL LINKAGE ADJUSTMENTMode door control linkage● Turn mode door control knob to position.● Set si

MTC-34TROUBLE DIAGNOSISIntake DoorEJS00208TROUBLE DIAGNOSIS PROCEDURE FOR INTAKE DOOR Symptom:● Intake door position does not change in VENT, B/L or F

TROUBLE DIAGNOSISMTC-35CDEFGHIKLMABMTCINTAKE DOOR CIRCUITSYMPTOM:● Intake door does not operate.1. CHECK POWER FOR INTAKE DOOR MOTOR1. Disconnect inta

MTC-36TROUBLE DIAGNOSIS3. CHECK INTAKE DOOR MOTOR1. Reconnect intake door motor connector M96.2. Turn ignition switch ON.3. Observe intake door operat

TROUBLE DIAGNOSISMTC-37CDEFGHIKLMABMTCBlower MotorEJS00209TROUBLE DIAGNOSIS PROCEDURE FOR BLOWER MOTORSymptom:● Blower motor does not rotate.Inspectio

MTC-38TROUBLE DIAGNOSIS3. CHECK BLOWER MOTOR POWER SUPPLY CIRCUIT1. Disconnect blower motor harness connector.2. Check voltage between blower motor ha

TROUBLE DIAGNOSISMTC-39CDEFGHIKLMABMTC6. CHECK FAN RESISTOR1. Disconnect fan resistor harness connector M61.2. Check resistance between fan resistor t

MTC-4PRECAUTIONSdental system discharge occurs, ventilate work area before resuming service. Additional healthand safety information may be obtained f

MTC-40TROUBLE DIAGNOSIS8. CHECK FAN SWITCH GROUND1. Disconnect fan switch harness connector M57.2. Check continuity between fan switch harness connect

TROUBLE DIAGNOSISMTC-41CDEFGHIKLMABMTCELECTRICAL COMPONENTS INSPECTIONFan SwitchCheck continuity between terminals at each switch position.Blower Moto

MTC-42TROUBLE DIAGNOSISMagnet ClutchEJS0020ATROUBLE DIAGNOSIS PROCEDURE FOR MAGNET CLUTCHSymptom:● Magnet clutch does not engage when A/C switch and f

TROUBLE DIAGNOSISMTC-43CDEFGHIKLMABMTCMAGNET CLUTCH CIRCUITSYMPTOM:● Magnet clutch does not engage when A/C switch and fan switch are ON.1. CHECK A/C

MTC-44TROUBLE DIAGNOSIS4. CHECK INTAKE SENSOR CIRCUITRefer to MTC-60, "Intake Sensor" .OK or NGOK >> GO TO 5.NG >> Repair as nec

TROUBLE DIAGNOSISMTC-45CDEFGHIKLMABMTC8. CHECK ECM OUTPUT VOLTAGEDo approx. 5 volts exist between air control harness connector M95terminal 2 (L/Y) an

MTC-46TROUBLE DIAGNOSIS11. CHECK CIRCUIT CONTINUITY1. Disconnect refrigerant pressure sensor harness connector E3.2. Check circuit continuity between

TROUBLE DIAGNOSISMTC-47CDEFGHIKLMABMTC14. CHECK A/C RELAY POWER SUPPLY CIRCUITS FOR SHORT1. Disconnect battery cable and A/C relay.2. Check for contin

MTC-48TROUBLE DIAGNOSISRefrigerant Pressure SensorCheck continuity between terminals.Thermal Protector (KA24DE Models)Thermal Protector (VG33E and VG3

TROUBLE DIAGNOSISMTC-49CDEFGHIKLMABMTCInsufficient CoolingEJS0020BTROUBLE DIAGNOSIS PROCEDURE FOR INSUFFICIENT COOLINGSymptom:● Insufficient coolingIn

PRECAUTIONSMTC-5CDEFGHIKLMABMTC● Leak detection dyes for R-134a and R12 A/C systems are different. Do not use R-134a leak detection dyein R-12 A/C sys

MTC-50TROUBLE DIAGNOSISPERFORMANCE TEST DIAGNOSES*1: MTC-52 *2: MTC-52 *3: MTC-53MHA649A

TROUBLE DIAGNOSISMTC-51CDEFGHIKLMABMTC*1: MTC-42 *2: MA-15 (KA24DE models) or MA-24 (VG33E and VG33ER models)WJIA0282E

MTC-52TROUBLE DIAGNOSISPERFROMANCE CHARTTest ConditionTesting must be performed as follows:Test ReadingRecirculating-to-Discharge Air Temperature Tabl

TROUBLE DIAGNOSISMTC-53CDEFGHIKLMABMTCAmbient Air Temperature-to-Operating Pressure TableTROUBLE DIAGNOSES FOR ABNORMAL PRESSUREWhenever system's

MTC-54TROUBLE DIAGNOSISHigh-Pressure Side is Too High and Low-Pressure Side is Too Low.High-Pressure Side is Too Low and Low-Pressure Side is Too High

TROUBLE DIAGNOSISMTC-55CDEFGHIKLMABMTCBoth High- and Low-Pressure Sides are Too Low.Low-Pressure Side Sometimes Becomes Negative.Gauge indication Refr

MTC-56TROUBLE DIAGNOSISLow-Pressure Side Becomes Negative.Gauge indication Refrigerant cycle Probable cause Corrective actionLow-pressure side becomes

TROUBLE DIAGNOSISMTC-57CDEFGHIKLMABMTCInsufficient HeatingEJS0020CTROUBLE DIAGNOSIS PROCEDURE FOR INSUFFICIENT HEATINGSymptom:● Insufficient heatingIn

MTC-58TROUBLE DIAGNOSISTEMPERATURE CONTROL LINKAGE ADJUSTMENTTemperature Control Cable● When adjusting ventilator door rod and defrost door rod,first

TROUBLE DIAGNOSISMTC-59CDEFGHIKLMABMTCNoiseEJS0020DTROUBLE DIAGNOSIS PROCEDURE FOR NOISESymptom:● NoiseInspection FlowLHA262*1: MTC-68 *2: MTC-70 *3:

MTC-6PRECAUTIONSO-RING AND REFRIGERANT CONNECTIONCAUTION:Refrigerant connections in some systems use different O-ring configurations. Do not confuse O

MTC-60TROUBLE DIAGNOSISIntake SensorEJS0020ECOMPONENT DESCRIPTIONIntake SensorThe intake sensor is located on the heater and cooling unit. It con-vert

TROUBLE DIAGNOSISMTC-61CDEFGHIKLMABMTC2. CHECK INTAKE SENSOR CIRCUIT BETWEEN INTAKE SENSOR AND A/C CONTROL UNITDisconnect air control harness connecto

MTC-62IN-CABIN MICROFILTERIN-CABIN MICROFILTERPFP:27277Removal and InstallationEJS0020FFUNCTIONThe air inside the passenger compartment is kept clean

HEATER COREMTC-63CDEFGHIKLMABMTCHEATER CORE PFP:27140Removal and InstallationEJS0020GREMOVAL1. Drain the cooling system. Refer to MA-16, "DRAININ

MTC-64REFRIGERANT LINESREFRIGERANT LINESPFP:92600HFC-134a (R-134a) Service ProcedureEJS0020HSETTING OF SERVICE TOOLS AND EQUIPMENTWARNING:Avoid breath

REFRIGERANT LINESMTC-65CDEFGHIKLMABMTC4. Refrigerant container (HFC-134a) 5. Weight scale (J-39650) 6. Manifold gauge set (J-39183)7. Evacuating vacuu

MTC-66REFRIGERANT LINESComponentsEJS0020IWJIA0681E

REFRIGERANT LINESMTC-67CDEFGHIKLMABMTCRemoval and Installation for CompressorEJS0020JKA24DEVG33E AND VG33ERLHA236LHA237

MTC-68REFRIGERANT LINESRemoval and Installation for Compressor ClutchEJS0020KKA24DEVG33E AND VG33ERLJIA0008EAHA507A

REFRIGERANT LINESMTC-69CDEFGHIKLMABMTCREMOVAL1. Remove the drive plate center bolt, hold clutch disc using Tool.2. Remove the drive plate using Tool.●

PRECAUTIONSMTC-7CDEFGHIKLMABMTCO-Ring Part Numbers and Specifications*: Always check with the Parts Department for the latest parts information.WARNIN

MTC-70REFRIGERANT LINES6. Remove the three field coil screws and remove the field coil.INSPECTION AFTER REMOVALClutch DiscIf the contact surface shows

REFRIGERANT LINESMTC-71CDEFGHIKLMABMTC3. Install the drive plate on the drive shaft, together with the originalshim(s). Press the drive plate down by

MTC-72REFRIGERANT LINESThermal Protector InspectionEJS0020O● When servicing, do not allow foreign matter to get into compres-sor.● Check continuity be

REFRIGERANT LINESMTC-73CDEFGHIKLMABMTCAllow extra inspection time in these areas when using either an electronic refrigerant leak detector or fluo-res

MTC-74REFRIGERANT LINESElectronic Refrigerant Leak DetectorEJS0020SPRECAUTIONS FOR HANDLING LEAK DETECTORNOTE:● When performing a refrigerant leak che

REFRIGERANT LINESMTC-75CDEFGHIKLMABMTC2. Connect a suitable A/C manifold gauge set to the A/C service ports.3. Check if the A/C refrigerant pressure i

MTC-76REFRIGERANT LINES13. Confirm refrigerant purity in vehicle A/C system using recovery/recycling equipment and refrigerant identi-fier. Refer to M

SERVICE DATA AND SPECIFICATIONS (SDS)MTC-77CDEFGHIKLMABMTCSERVICE DATA AND SPECIFICATIONS (SDS) PFP:00030General SpecificationsEJS0020TCOMPRESSORLUBRI

MTC-78SERVICE DATA AND SPECIFICATIONS (SDS)

MTC-8PRECAUTIONS● After connecting line, conduct leak test and make sure that there is no leakage. When the gasleaking point is found, disconnect that

PRECAUTIONSMTC-9CDEFGHIKLMABMTCVACUUM PUMPThe lubricant contained inside the vacuum pump is not compatiblewith the specified lubricant for HFC-134a (R