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VENTILATION, HEATER & AIR CONDITIONER SECTION HAC HEATER & AIR CONDITIONING CONTROL SYSTEM A B C D E CONTENTS WITHOUT INCH DISPLAY System Description 36 BASIC INSPECTION BLOWER MOTOR CONTROL SYSTEM 38 DIAGNOSIS AND REPAIR WORKFLOW System Diagram 38 System Description 38 Work Flow INSPECTION AND ADJUSTMENT F G MAGNET CLUTCH CONTROL SYSTEM 40 System Diagram 40 System Description 40 H Description & Inspection Temperature Setting Trimmer 11 Foot Position Setting Trimmer 12 Inlet Port Memory Function (FRE) 12 Inlet Port Memory Function (REC) 13 CAN COMMUNICATION SYSTEM 41 FUNCTION DIAGNOSIS 14 CONSULT Function 42 COMPRESSOR CONTROL FUNCTION 14 COMPONENT DIAGNOSIS 46 Description 14 Component Part Location 15 Component Description 17 U1000 CAN COMM CIRCUIT 46 K Description .46 DTC Logic 46 Diagnosis Procedure 46 L AUTOMATIC AIR CONDITIONER SYSTEM 18 System Diagram 18 System Description 18 Component Part Location 26 Component Description 29 MODE DOOR CONTROL SYSTEM 30 System Diagram 30 System Description 30 UPPER VENTILATOR DOOR CONTROL SYSTEM .32 System Diagram 32 System Description 32 System Description 41 DIAGNOSIS SYSTEM (HVAC) 42 Description .47 DTC Logic 47 Diagnosis Procedure .47 M B257B, B257C AMBIENT SENSOR 48 N Description .48 DTC Logic 48 Diagnosis Procedure .49 Component Inspection .50 INTAKE DOOR CONTROL SYSTEM 36 B2581, B2582 INTAKE SENSOR 54 Revision: 2011 July O B2578, B2579 IN-VEHICLE SENSOR 51 System Diagram 34 System Description 34 System Diagram 36 J U1010 CONTROL UNIT (CAN) 47 Description .51 DTC Logic 51 Diagnosis Procedure .52 Component Inspection .53 AIR MIX DOOR CONTROL SYSTEM 34 HAC Description .54 DTC Logic 54 HAC-1 Z51 P Diagnosis Procedure 54 Component Inspection 55 B2630, B2631 SUNLOAD SENSOR 57 Description 57 DTC Logic 57 Diagnosis Procedure 58 Component Inspection 59 B2632, B2633 AIR MIX DOOR MOTOR (DRIVER SIDE) 60 Description 60 DTC Logic 60 Diagnosis Procedure 61 A/C CONTROL : Diagnosis Procedure 79 A/C DISPLAY 79 A/C DISPLAY : Diagnosis Procedure 79 ECU DIAGNOSIS 81 A/C AUTO AMP 81 Reference Value 81 Wiring Diagram - AIR CONDITIONER CONTROL SYSTEM - 83 DTC Inspection Priority Chart 85 DTC Index 86 SYMPTOM DIAGNOSIS 88 B2634, B2635 AIR MIX DOOR MOTOR (PASSENGER SIDE) 62 AIR CONDITIONER CONTROL 88 Description 62 DTC Logic 62 Diagnosis Procedure 63 INSUFFICIENT COOLING 89 B2636, B2637, B2638, B2639, B2654, B2655 MODE DOOR MOTOR 64 Description 64 DTC Logic 64 Diagnosis Procedure 65 Diagnosis Chart By Symptom 88 Description 89 Diagnosis Procedure 89 INSUFFICIENT HEATING 91 Description 91 Diagnosis Procedure 91 NOISE 94 B263D, B263E, B263F INTAKE DOOR MOTOR 66 Description 94 Inspection procedure 94 Description 66 DTC Logic 66 Diagnosis Procedure 67 MEMORY FUNCTION DOES NOT OPERATE 96 B2661, B2662, B2663 UPPER VENTILATOR DOOR MOTOR 68 PRECAUTION 97 Description 68 DTC Logic 68 Diagnosis Procedure 69 BLOWER MOTOR 71 Description 71 Component Function Check 71 Diagnosis Procedure 71 Component Inspection 74 Description 96 Inspection procedure 96 PRECAUTIONS 97 Precaution for Supplemental Restraint System (SRS) "AIR BAG" and "SEAT BELT PRE-TENSIONER" 97 Precautions Necessary for Steering Wheel Rotation After Battery Disconnection 97 ON-VEHICLE REPAIR 99 MAGNET CLUTCH 75 A/C CONTROL 99 Description 75 Component Function Check 75 Diagnosis Procedure 75 A/C DISPLAY 101 Exploded View 99 Removal and Installation 99 Diagnosis Procedure 77 Exploded View 101 Removal and Installation 101 POWER SUPPLY AND GROUND CIRCUIT 78 A/C AUTO AMP 102 A/C AUTO AMP 78 A/C AUTO AMP : Description 78 A/C AUTO AMP : Component Function Check 78 A/C AUTO AMP : Diagnosis Procedure 78 AMBIENT SENSOR 103 A/C CONTROL SIGNAL CIRCUIT 77 A/C CONTROL 79 Revision: 2011 July Exploded View 102 Removal and Installation 102 Exploded View 103 Removal and Installation 103 IN-VEHICLE SENSOR 104 HAC-2 Z51 Exploded View 104 Removal and Installation 104 System Description 137 A INTAKE SENSOR 105 UPPER VENTILATOR DOOR CONTROL SYSTEM 139 Exploded View 105 Removal and Installation 105 System Diagram 139 System Description 139 SUNLOAD SENSOR 106 AIR MIX DOOR CONTROL SYSTEM 141 Exploded View 106 Removal and Installation 106 System Diagram 141 System Description 141 REFRIGERANT PRESSURE SENSOR 107 INTAKE DOOR CONTROL SYSTEM 143 Exploded View 107 Removal and Installation 107 System Diagram 143 System Description 143 D DOOR MOTOR 108 BLOWER MOTOR CONTROL SYSTEM 145 Exploded View 108 E System Diagram 145 System Description 145 B C INTAKE DOOR MOTOR 108 INTAKE DOOR MOTOR : Removal and Installation 108 MAGNET CLUTCH CONTROL SYSTEM 147 UPPER VENTILATOR DOOR MOTOR 109 UPPER VENTILATOR DOOR MOTOR : Removal and Installation 109 CAN COMMUNICATION SYSTEM 148 MODE DOOR MOTOR 109 MODE DOOR MOTOR : Removal and Installation 109 DIAGNOSIS SYSTEM (HVAC) 149 AIR MIX DOOR MOTOR 109 AIR MIX DOOR MOTOR : Removal and Installation 109 COMPONENT DIAGNOSIS 153 HAC WITH INCH DISPLAY System Diagram 147 System Description 147 U1000 CAN COMM CIRCUIT 153 DIAGNOSIS AND REPAIR WORKFLOW 111 U1010 CONTROL UNIT (CAN) 154 Description & Inspection 114 Temperature Setting Trimmer 116 Foot Position Setting Trimmer 117 Inlet Port Memory Function (FRE) 117 Inlet Port Memory Function (REC) 118 FUNCTION DIAGNOSIS 119 COMPRESSOR CONTROL FUNCTION 119 Description 119 Fail-Safe 119 Component Part Location 120 Component Description 123 AUTOMATIC AIR CONDITIONER SYSTEM 124 System Diagram 124 System Description 124 Component Part Location 133 Component Description 136 MODE DOOR CONTROL SYSTEM 137 System Diagram 137 Revision: 2011 July H CONSULT Function 149 BASIC INSPECTION 111 INSPECTION AND ADJUSTMENT 114 G System Description 148 Description 153 DTC Logic 153 Diagnosis Procedure 153 Work Flow 111 F Description 154 DTC Logic 154 Diagnosis Procedure 154 J K L B257B, B257C AMBIENT SENSOR 155 Description 155 DTC Logic 155 Diagnosis Procedure 156 Component Inspection 157 M B2578, B2579 IN-VEHICLE SENSOR 158 N Description 158 DTC Logic 158 Diagnosis Procedure 159 Component Inspection 160 O B2581, B2582 INTAKE SENSOR 161 Description 161 DTC Logic 161 Diagnosis Procedure 161 Component Inspection 162 B2630, B2631 SUNLOAD SENSOR 164 Description 164 DTC Logic 164 HAC-3 Z51 P Diagnosis Procedure .164 Component Inspection 165 B2632, B2633 AIR MIX DOOR MOTOR (DRIVER SIDE) 167 SYMPTOM DIAGNOSIS 195 AIR CONDITIONER CONTROL 195 Diagnosis Chart By Symptom 195 Description .167 DTC Logic 167 Diagnosis Procedure .168 INSUFFICIENT COOLING 196 B2634, B2635 AIR MIX DOOR MOTOR (PASSENGER SIDE) 170 INSUFFICIENT HEATING 198 Description .170 DTC Logic 170 Diagnosis Procedure .171 B2636, B2637, B2638, B2639, B2654, B2655 MODE DOOR MOTOR 173 Description .173 DTC Logic 173 Diagnosis Procedure .174 B263D, B263E, B263F INTAKE DOOR MOTOR 175 Description .175 DTC Logic 175 Diagnosis Procedure .176 B2661, B2662, B2663 UPPER VENTILATOR DOOR MOTOR 177 Description .177 DTC Logic 177 Diagnosis Procedure .178 POWER SUPPLY AND GROUND CIRCUIT 180 Diagnosis Procedure .180 A/C AUTO AMP 181 Description .181 Component Function Check 181 Diagnosis Procedure .181 Description 196 Diagnosis Procedure 196 Description 198 Diagnosis Procedure 198 NOISE 201 Description 201 Diagnosis Procedure 201 MEMORY FUNCTION DOES NOT OPERATE 203 Description 203 Diagnosis Procedure 203 PRECAUTION 204 PRECAUTIONS 204 FOR KOREA 204 FOR KOREA : Precaution for Supplemental Restraint System (SRS) "AIR BAG" and "SEAT BELT PRE-TENSIONER" 204 FOR KOREA : Precautions Necessary for Steering Wheel Rotation After Battery Disconnection 204 EXCEPT FOR KOREA 205 EXCEPT FOR KOREA : Precaution for Supplemental Restraint System (SRS) "AIR BAG" and "SEAT BELT PRE-TENSIONER" 205 EXCEPT FOR KOREA : Precautions Necessary for Steering Wheel Rotation After Battery Disconnection 205 ON-VEHICLE REPAIR 207 BLOWER MOTOR 182 PRESET SWITCH 207 Description .182 Component Function Check 182 Diagnosis Procedure .182 Component Inspection 185 Exploded View 207 Removal and Installation 207 MAGNET CLUTCH 186 Description .186 Component Function Check 186 Diagnosis Procedure .186 ECU DIAGNOSIS 188 A/C AUTO AMP 188 Reference Value 188 Wiring Diagram - AIR CONDITIONER CONTROL SYSTEM - 190 Fail-Safe 192 DTC Inspection Priority Chart .193 DTC Index .193 Revision: 2011 July A/C AUTO AMP 208 Exploded View 208 Removal and Installation 208 AMBIENT SENSOR 209 Exploded View 209 Removal and Installation 209 IN-VEHICLE SENSOR 210 Exploded View 210 Removal and Installation 210 INTAKE SENSOR 211 Exploded View 211 Removal and Installation 211 SUNLOAD SENSOR 212 HAC-4 Z51 Exploded View 212 Removal and Installation 212 UPPER VENTILATOR DOOR MOTOR 215 UPPER VENTILATOR DOOR MOTOR : Removal and Installation 215 A Exploded View 213 Removal and Installation 213 MODE DOOR MOTOR 215 MODE DOOR MOTOR : Removal and Installation 215 B DOOR MOTOR 214 AIR MIX DOOR MOTOR 215 AIR MIX DOOR MOTOR : Removal and Installation (LHD models) 216 AIR MIX DOOR MOTOR : Removal and Installation (RHD models) 216 REFRIGERANT PRESSURE SENSOR 213 Exploded View 214 INTAKE DOOR MOTOR 214 INTAKE DOOR MOTOR : Removal and Installation 214 C D E F G H HAC J K L M N O P Revision: 2011 July HAC-5 Z51 DIAGNOSIS AND REPAIR WORKFLOW [WITHOUT INCH DISPLAY] < BASIC INSPECTION > BASIC INSPECTION DIAGNOSIS AND REPAIR WORKFLOW Work Flow INFOID:0000000007415423 OVERALL SEQUENCE JMKIA8652GB DETAILED FLOW Revision: 2011 July HAC-6 Z51 DIAGNOSIS AND REPAIR WORKFLOW [WITHOUT INCH DISPLAY] < BASIC INSPECTION > 1.GET INFORMATION FOR SYMPTOM A Get detailed information from the customer about the symptom (the condition and the environment when the incident/malfunction occurs) Check operation condition of the function that is malfunctioning B >> GO TO 2.CHECK DTC C Check DTC Perform the following procedure if DTC is detected Record DTC and freeze frame data (Print them out using CONSULT.) Erase DTC Study the relationship between the cause detected by DTC and the symptom described by the customer Check related service bulletins for information Are any symptoms described and any DTC detected? Symptom is described, DTC is detected>>GO TO Symptom is described, DTC is not detected>>GO TO Symptom is not described, DTC is detected>>GO TO D E F 3.CONFIRM THE SYMPTOM G Try to confirm the symptom described by the customer Also study the normal operation and fail-safe related to the symptom Verify relation between the symptom and the condition when the symptom is detected H >> GO TO 4.CONFIRM THE SYMPTOM HAC Try to confirm the symptom described by the customer Verify relation between the symptom and the condition when the symptom is detected J >> GO TO 5.PERFORM DTC CONFIRMATION PROCEDURE Perform DTC CONFIRMATION PROCEDURE for the detected DTC, and then check that DTC is detected again At this time, always connect CONSULT to the vehicle, and check self diagnostic results in real time If two or more DTCs are detected, refer to DTC INSPECTION PRIORITY CHART, and determine trouble diagnosis order NOTE: • Freeze frame data is useful if the DTC is not detected • Perform Component Function Check if DTC CONFIRMATION PROCEDURE is not included on Service Manual This simplified check procedure is an effective alternative though DTC cannot be detected during this check If the result of Component Function Check is NG, it is the same as the detection of DTC by DTC CONFIRMATION PROCEDURE Is DTC detected? YES >> GO TO NO >> Check according to GI-44, "Intermittent Incident" K L M N O 6.DETECT MALFUNCTIONING SYSTEM BY SYMPTOM DIAGNOSIS Detect malfunctioning system according to SYMPTOM DIAGNOSIS based on the confirmed symptom in step 4, and determine the trouble diagnosis order based on possible causes and symptom Is the symptom described? YES >> GO TO NO >> Monitor input data from related sensors or check voltage of related module terminals using CONSULT 7.DETECT MALFUNCTIONING PART BY DIAGNOSIS PROCEDURE Revision: 2011 July HAC-7 Z51 P DIAGNOSIS AND REPAIR WORKFLOW < BASIC INSPECTION > Inspect according to Diagnosis Procedure of the system Is malfunctioning part detected? YES >> GO TO NO >> Check according to GI-44, "Intermittent Incident" [WITHOUT INCH DISPLAY] 8.REPAIR OR REPLACE THE MALFUNCTIONING PART Repair or replace the malfunctioning part Reconnect parts or connectors disconnected during Diagnosis Procedure again after repair and replacement Check DTC If DTC is detected, erase it >> GO TO 9.FINAL CHECK When DTC is detected in step 2, perform DTC CONFIRMATION PROCEDURE again, and then check that the malfunction is repaired securely When symptom is described by the customer, refer to confirmed symptom in step or 4, and check that the symptom is not detected Is DTC detected and does symptom remain? YES-1 >> DTC is detected: GO TO YES-2 >> Symptom remains: GO TO NO >> Before returning the vehicle to the customer, always erase DTC Revision: 2011 July HAC-8 Z51 INSPECTION AND ADJUSTMENT [WITHOUT INCH DISPLAY] < BASIC INSPECTION > INSPECTION AND ADJUSTMENT A Description & Inspection INFOID:0000000007415424 DESCRIPTION B The purpose of the operational check is to check that the individual system operates normally Check condition : Engine running at normal operating temperature C 1.CHECK MEMORY FUNCTION Turn the ignition switch ON Set temperature control switch (driver side) to 32.0°C Press the ON/OFF switch Turn the ignition switch OFF Turn the ignition switch ON Press the AUTO switch Check that the set temperature is maintained Is the inspection result normal? YES >> GO TO NO >> Memory function malfunction Refer to HAC-96, "Inspection procedure" D 2.CHECK BLOWER MOTOR G E F Start the engine Operate the fan control dial Check that the fan speed changes Check the operation for all fan speeds Leave blower on maximum speed Is the inspection result normal? YES >> GO TO NO >> Blower motor system malfunction Refer to HAC-71, "Diagnosis Procedure" H HAC 3.CHECK DISCHARGE AIR J Operate MODE switch and DEF switch Confirm that discharge air comes out according to the air distribution table as follows: K L M N O JPIIA0510GB Is the inspection result normal? YES >> GO TO NO >> Mode door system malfunction Refer to HAC-65, "Diagnosis Procedure" P 4.CHECK DISCHARGE AIR (UPPER VENT SWITCH) Press the UPPER VENT switch The UPPER VENT switch indicator is turned ON Revision: 2011 July HAC-9 Z51 INSPECTION AND ADJUSTMENT [WITHOUT INCH DISPLAY] < BASIC INSPECTION > Check that the air blown from upper ventilator dose not greatly device from the air distribution table as follows: JPIIA0509GB Press the UPPER VENT switch again The UPPER VENT switch indicator is turned OFF The air blown from the upper ventilator stops Is the inspection result normal? YES >> GO TO NO >> Upper ventilator door system malfunction: HAC-69, "Diagnosis Procedure" 5.CHECK INTAKE AIR Press intake switch to set the air outlet to recirculation The intake switch indicator is turned ON Listen to intake sound and confirm air inlets change Press intake switch to set the air outlet to fresh air intake The intake switch indicator is turned OFF Listen to intake sound and confirm air inlets change Is the inspection result normal? YES >> GO TO NO >> Intake door system malfunction Refer to HAC-67, "Diagnosis Procedure" 6.CHECK A/C SWITCH Press the A/C switch Check that the indicator of the A/C switch turns ON Check visually and by sound that the compressor operates Press the A/C switch again Check that the indicator of the A/C switch turns OFF Check that the compressor stops Is the inspection result normal? YES >> GO TO NO >> Magnet clutch system malfunction Refer to HAC-75, "Diagnosis Procedure" 7.CHECK DISCHARGE AIR TEMPERATURE Operate the temperature control switch (driver side) Check that the discharge air temperature (driver side) changes Operate the temperature control switch (passenger side) Check that the discharge air temperature (passenger side) changes Is the inspection result normal? YES >> GO TO NO-1 >> Air mix door (driver side) malfunction Refer to HAC-61, "Diagnosis Procedure" NO-2 >> Air mix door (passenger side) malfunction Refer to HAC-63, "Diagnosis Procedure" 8.CHECK TEMPERATURE DECREASE Operate the compressor Operate the temperature control switch (driver side) and lower the set temperature to 18.0°C Revision: 2011 July HAC-10 Z51 COOLER PIPE AND HOSE < ON-VEHICLE REPAIR > Remove the mounting bolt (A), and then disconnect the highpressure pipe (1) from the condenser pipe assembly (2) CAUTION: Cap or wrap the joint of the A/C piping with suitable material such as vinyl tape to avoid the entry of air A B C JPIIA0539ZZ D Move the power steering reservoir tank to secure work space Refer to ST-55, "Exploded View" Remove the reservoir tank Refer to CO-40, "Exploded View" Remove the washer tank inlet Refer to WW-99, "Exploded View" Remove the clips (A), and then remove the high-pressure pipe (1) E F G H JPIIA0540ZZ INSTALLATION HA Note the following items, and then install in the reverse order of removal CAUTION: • Replace O-rings with new ones Then apply compressor oil to them when installing • Check for leakages when recharging refrigerant HIGH-PRESSURE PIPE : Removal and Installation (RHD models) J INFOID:0000000007412118 K REMOVAL QR25DE Models Remove low-pressure pipe Refer to HA-47, "Exploded View" Remove upper torque rod Refer to EM-194, "Exploded View" Remove the washer tank inlet Refer to WW-220, "Exploded View" Remove the reservoir tank Refer to CO-40, "Exploded View" Disconnect the high-pressure pipe from the expansion valve CAUTION: Cap or wrap the joint of the A/C piping and expansion valve with suitable material such as vinyl tape to avoid the entry of air Remove the mounting bolt, and then disconnect the high-pressure flexible hose and high-pressure pipe from the condenser pipe assembly CAUTION: Cap or wrap the joint of the A/C piping with suitable material such as vinyl tape to avoid the entry of air Remove the fixing clips, and then remove the high-pressure pipe fron the vehicle VQ35DE Models Remove low-pressure pipe Refer to HA-47, "Exploded View" Revision: 2011 July HA-53 Z51 L M N O P COOLER PIPE AND HOSE < ON-VEHICLE REPAIR > Disconnect the high-pressure pipe (1) from the expansion valve CAUTION: Cap or wrap the joint of the A/C piping and expansion valve with suitable material such as vinyl tape to avoid the entry of air JPIIA1150ZZ Remove the mounting bolt (A), and then disconnect the highpressure pipe (1) from the condenser pipe assembly (2) CAUTION: Cap or wrap the joint of the A/C piping with suitable material such as vinyl tape to avoid the entry of air JPIIA0539ZZ Remove the reservoir tank Refer to CO-15, "Exploded View" Remove the washer tank inlet Refer to WW-99, "Exploded View" Remove the fixing clips (A), and then remove the high-pressure pipe (1) fron the vehicle JPIIA0540ZZ INSTALLATION Note the following items, and then install in the reverse order of removal CAUTION: • Replace O-rings with new ones Then apply compressor oil to them when installing • Check for leakages when recharging refrigerant Revision: 2011 July HA-54 Z51 CONDENSER < ON-VEHICLE REPAIR > CONDENSER A Exploded View INFOID:0000000007412119 B C D E F G JPIIA0460GB Condenser pipe assembly O-ring Condenser assembly Condenser lower bracket Bracket Liquid tank Refrigerant pressure sensor Liquid tank bracket Condenser upper bracket LH H 10 Condenser upper bracket RH HA Refer to GI-4, "Components" for symbols in the figure CONDENSER CONDENSER : Removal and Installation J INFOID:0000000007412120 REMOVAL K Remove the condenser pipe assembly Refer to HA-55, "Exploded View" Remove the air guide upper and air guide center • Refer to DLK-249, "Exploded View" (FOR SOUTH AFRICA) • Refer to DLK-582, "QR25DE : Exploded View" (EXCEPT FOR SOUTH AFRICA: QR25DE models) • Refer to DLK-584, "VQ35DE : Exploded View" (EXCEPT FOR SOUTH AFRICA: VQ35DE models) Remove hood lock assembly • Refer to DLK-272, "Exploded View" (FOR SOUTH AFRICA) • Refer to DLK-606, "LHD MODELS : Exploded View" (EXCEPT FOR SOUTH AFRICA: LHD models) • Refer to DLK-608, "RHD MODELS : Exploded View" (EXCEPT FOR SOUTH AFRICA: RHD models) Disengage the joints of the pawl (A), and then move air guide side LH (1) to secure work space L M N O P JPIIA1348ZZ Revision: 2011 July HA-55 Z51 CONDENSER < ON-VEHICLE REPAIR > Disconnect the refrigerant pressure sensor connector (A) JPIIA0543ZZ Remove the tabs (A) Pull the condenser (1) in the direction shown by the arrow, and then remove it CAUTION: Be careful not to damage core surface of condenser JPIIA1349ZZ INSTALLATION Note the following items, and then install in the reverse order of removal CAUTION: • Replace O-rings with new ones Then apply compressor oil to them when installing • Check for leakages when recharging refrigerant CONDENSER PIPE ASSEMBLY CONDENSER PIPE ASSEMBLY : Removal and Installation INFOID:0000000007412121 REMOVAL Use refrigerant collecting equipment (for HFC-134a) to discharge the refrigerant Remove the front grille Refer to EXT-21, "Exploded View" Remove the mounting bolt (A), and then disconnect the highpressure flexible hose (2) and the high-pressure pipe (3) from the condenser pipe assembly (1) CAUTION: Cap or wrap the joint of the A/C piping with suitable material such as vinyl tape to avoid the entry of air JPIIA0541ZZ Revision: 2011 July HA-56 Z51 CONDENSER < ON-VEHICLE REPAIR > Remove the mounting bolt (A), and then remove the condenser pipe assembly (1) from the condenser CAUTION: Cap or wrap the joint of the A/C piping and condenser with suitable material such as vinyl tape to avoid the entry of air A B C JPIIA0542ZZ D INSTALLATION Note the following items, and then install in the reverse order of removal CAUTION: • Replace O-rings with new ones Then apply compressor oil to them when installing • Check for leakages when recharging refrigerant E LIQUID TANK LIQUID TANK : Removal and Installation F INFOID:0000000007412122 REMOVAL G H Use refrigerant collecting equipment (for HFC-134a) to discharge the refrigerant Remove the front grille Refer to EXT-21, "Exploded View" Clean liquid tank and its surrounding area Then remove dust and rust from liquid tank CAUTION: Be sure to clean carefully Disconnect the refrigerant pressure sensor connector (A) HA J K JPIIA0543ZZ Remove the mounting bolts (A), and then remove the liquid tank (1) CAUTION: Cap or wrap the joint of the A/C piping and liquid tank with suitable material such as vinyl tape to avoid the entry of air L M N O JPIIA0545ZZ P INSTALLATION Note the following items, and then install in the reverse order of removal CAUTION: • Replace O-rings with new ones Then apply compressor oil to them when installing • Check for leakages when recharging refrigerant REFRIGERANT PRESSURE SENSOR Revision: 2011 July HA-57 Z51 CONDENSER < ON-VEHICLE REPAIR > REFRIGERANT PRESSURE SENSOR : Removal and Installation INFOID:0000000007412123 REMOVAL Remove liquid tank Refer to HA-55, "Exploded View" Fix the liquid tank (1) with a vise (A) Remove the refrigerant pressure sensor (2) with a wrench (B) CAUTION: • Be careful not to damage liquid tank • Seal the refrigerant pressure sensor on liquid tank with caps, vinyl tape, or a similar item to prevent them from being exposed to the atmosphere JSIIA0075ZZ INSTALLATION Install in the reverse order of removal CAUTION: • Replace O-rings with new ones Then apply compressor oil to them when installing • Check for leakages when recharging refrigerant Revision: 2011 July HA-58 Z51 HEATER & COOLING UNIT ASSEMBLY < ON-VEHICLE REPAIR > HEATER & COOLING UNIT ASSEMBLY A Exploded View INFOID:0000000007412124 LHD models B C D E F G H HA JPIIA1224GB Blower unit assembly Heater & cooling unit assembly instrument stay instrument panel assembly J Steering member Refer to GI-4, "Components" for symbols in the figure K DISASSEMBLY L M N O P Revision: 2011 July HA-59 Z51 HEATER & COOLING UNIT ASSEMBLY < ON-VEHICLE REPAIR > LHD models JPIIA0454GB Ventilator seal Upper ventilator seal Defroster seal Adapter case Center case Intake sensor bracket Intake sensor Upper ventilator door motor Upper ventilator door rod 10 Upper ventilator door lever 11 Filter cover 13 Foot duct RH 14 Foot duct RH 15 Air mix door motor (Passenger side) 16 Heater & cooling unit case cover 17 Evaporator pipe assembly 18 O-ring 19 Evaporator 20 Expansion valve 21 Case packing 22 Grommet 23 Cooler pipe grommet 24 Drain hose 25 Heater & cooling unit case RH 26 Air mix door (Slide door) 27 Heater pipe support 28 Heater pipe grommet 29 Heater & cooling unit case LH 30 Heater core 31 Heater pipe cover 32 Foot duct LH 33 Foot duct LH 34 Heater duct 35 Aspirator 36 Aspirator hose 37 Mode door motor 38 Main link 39 Rod link 40 Max cool door link 41 Ventilator door link 42 Foot door link 12 Air conditioner filter 43 Mode door lever 44 Defroster door link 45 Ventilator door lever 46 Foot door lever 47 Defroster door lever 48 Max cool door lever 49 Air mix door motor (Driver side) 50 Distributor upper case 51 Distributor lower case 52 Ventilator door 53 Foot door 54 Max cool door 55 Defroster door 56 Upper ventilator door Refer to GI-4, "Components" for symbols in the figure Revision: 2011 July HA-60 Z51 HEATER & COOLING UNIT ASSEMBLY < ON-VEHICLE REPAIR > HEATER & COOLING UNIT ASSEMBLY A HEATER & COOLING UNIT ASSEMBLY : Removal and Installation INFOID:0000000007412125 REMOVAL B Collect the refrigerant with refrigerant collecting equipment (for HFC134a) Drain engine coolant • Refer to CO-10, "Draining" (QR25DE models) • Refer to CO-35, "Draining" (VQ35DE models) Remove the mounting bolt (A), and then disconnect the lowpressure pipe (1) and high-pressure pipe (2) from the expansion valve CAUTION: Cap or wrap the joint of the A/C piping and expansion valve with suitable material such as vinyl tape to avoid the entry of air C D E F JPIIA0561ZZ G Remove the clamps (A), and then disconnect the heater hoses (1) CAUTION: • Some coolant may spill when heater hoses are disconnected Wipe them off with wastes • Close the coolant inlet/outlet on the heater core and heater hoses with wastes H HA J JPIIA0571ZZ Remove the instrument panel assembly Refer to IP-12, "Exploded View" Remove the mounting nuts (A), and then remove the instrument stay (1) K L M N JPIIA0565ZZ O P Revision: 2011 July HA-61 Z51 HEATER & COOLING UNIT ASSEMBLY < ON-VEHICLE REPAIR > Remove the heater & cooling unit assembly and blower unit mounting bolts (A) JPIIA1241ZZ 10 11 12 13 Remove the steering column mounting nuts (B) • Refer to ST-16, "WITHOUT ELECTRIC MOTOR : Exploded View" (WITHOUT ELECTRIC MOTOR) • Refer to ST-19, "WITH ELECTRIC MOTOR : Exploded View" (WITH ELECTRIC MOTOR) Remove the ground bolts (C) from the steering member (1) Remove the harness clips from the steering member Disconnect the intake door motor and blower motor connectors Remove the steering member mounting bolts (D), and then remove the steering member Remove the fixing screw (A), and then remove the blower unit (1) JPIIA0567ZZ 14 Disconnect the drain hose (1) from heater & cooling unit assembly JPIIA0572ZZ Revision: 2011 July HA-62 Z51 HEATER & COOLING UNIT ASSEMBLY < ON-VEHICLE REPAIR > 15 Remove the rear foot duct (LH and RH) (A) and rear ventilator duct (B), and then remove the heater & cooling unit assembly (1) A B C JPIIA0573ZZ D INSTALLATION Note the following items, and then install in the reverse order of removal CAUTION: • Replace O-rings with new ones Then apply compressor oil to them when installing • Check for leakages when recharging refrigerant NOTE: • Refer to CO-11, "Refilling" (QR25DE models) or CO-36, "Refilling" (VQ35DE models) when filling the radiator with engine coolant • Charge the refrigerant again HEATER CORE F G HEATER CORE : Removal and Installation INFOID:0000000007412126 H REMOVAL E Remove the heater & cooling unit assembly Refer to HA-59, "Exploded View" Remove the fixing screws (A), and then remove the foot duct LH (1) HA J K JPIIA0579ZZ Remove the heater pipe grommet (1) Remove the fixing screw (A), and then remove the heater pipe support (2) Remove the fixing screws (B), and then remove the heater pipe cover (3) L M N O JPIIA0580ZZ P Revision: 2011 July HA-63 Z51 HEATER & COOLING UNIT ASSEMBLY < ON-VEHICLE REPAIR > Slide the heater core (1) in the direction shown by the arrow, and then remove it JPIIA0581ZZ INSTALLATION Note the following items, and then install in the reverse order of removal CAUTION: • Replace O-rings with new ones Then apply compressor oil to them when installing • Check for refrigerant leakage when charging refrigerant NOTE: • Refer to CO-36, "Refilling" when filling the radiator with engine coolant • Charge the refrigerant again EVAPORATOR EVAPORATOR : Removal and Installation INFOID:0000000007412127 REMOVAL Remove the evaporator pipe assembly Refer to HA-59, "Exploded View" Slide the evaporator (1) toward the right side of vehicle Remove the intake sensor (2), and then remove the evaporator JPIIA0907ZZ INSTALLATION Note the following items, and then install in the reverse order of removal CAUTION: • Replace O-rings with new ones Then apply compressor oil to them when installing • Mark the mounting position of intake sensor bracket prior to removal so that the reinstalled sensor can be located in the same position • Never rotate the bracket insertion part when removing and installing the intake sensor • Check for refrigerant leakage when charging refrigerant EVAPORATOR PIPE ASSEMBLY EVAPORATOR PIPE ASSEMBLY : Removal and Installation INFOID:0000000007412128 REMOVAL Set the temperature (passenger side) at 18°C (64°F) CAUTION: The angle may be out, when installing the air mix door motor to the air mix door, unless the above procedure is performed Disconnect the battery cable from the negative terminal Use refrigerant collecting equipment (for HFC-134a) to discharge the refrigerant Revision: 2011 July HA-64 Z51 HEATER & COOLING UNIT ASSEMBLY < ON-VEHICLE REPAIR > Remove the mounting bolt (A), and then disconnect the lowpressure pipe (1) and high-pressure pipe (2) from the expansion valve CAUTION: Cap or wrap the joint of the A/C piping and expansion valve with suitable material such as vinyl tape to avoid the entry of air A B C JPIIA0561ZZ D Remove the blower unit Refer to VTL-19, "Exploded View" Remove the fixing screws (A), and then remove the foot duct assembly RH (1) E F G JPIIA0562ZZ H Disconnect the air mix door motor (passenger side) connector Remove the fixing screws (A), and then remove the heater & cooling unit case cover (1) together with the air mix door motor (passenger side) (2) HA J K JPIIA0563ZZ L Remove the mounting bolts (A), and then remove the evaporator pipe assembly (1) and the expansion valve (2) from the evaporator CAUTION: Cap or wrap the joint of the A/C piping and evaporator with suitable material such as vinyl tape to avoid the entry of air M N O JPIIA0546ZZ P Revision: 2011 July HA-65 Z51 HEATER & COOLING UNIT ASSEMBLY < ON-VEHICLE REPAIR > 10 Remove the mounting bolts (A), and then remove the evaporator pipe assembly (1) from the expansion valve (2) CAUTION: Cap or wrap the joint of the A/C piping and expansion valve with suitable material such as vinyl tape to avoid the entry of air JPIIA0547ZZ INSTALLATION Note the following items, and then install in the reverse order of removal CAUTION: • Replace O-rings with new ones Then apply compressor oil to them when installing • Check for leakages when recharging refrigerant EXPANSION VALVE EXPANSION VALVE : Removal and Installation INFOID:0000000007412129 REMOVAL Use refrigerant collecting equipment (for HFC-134a) to discharge the refrigerant Remove the mounting bolt (A), and then disconnect the lowpressure pipe (1) and high-pressure pipe (2) from the expansion valve CAUTION: Cap or wrap the joint of the A/C piping and expansion valve with suitable material such as vinyl tape to avoid the entry of air JPIIA0561ZZ Remove the mounting bolts (A), and then remove the expansion valve (1) CAUTION: Cap or wrap the joint of the A/C piping and expansion valve with suitable material such as vinyl tape to avoid the entry of air JPIIA0549ZZ INSTALLATION Note the following items, and then install in the reverse order of removal CAUTION: • Replace O-rings with new ones Then apply compressor oil to them when installing • Check for leakages when recharging refrigerant Revision: 2011 July HA-66 Z51 SERVICE DATA AND SPECIFICATIONS (SDS) < SERVICE DATA AND SPECIFICATIONS (SDS) SERVICE DATA AND SPECIFICATIONS (SDS) A SERVICE DATA AND SPECIFICATIONS (SDS) Compressor INFOID:0000000007412130 Model VALEO THERMAL SYSTEMS JAPAN make DKS-17D Type Fixation displacement swash plate Displacement cm3 (cu in)/rev Max 30.5 (1.20) × 24 (0.94) Direction of rotation Poly V F Standard 0.3 – 0.6 (0.012 – 0.024) Lubricant INFOID:0000000007412131 Name Capacity m (lmp fl oz) E Clockwise (viewed from clutch) Drive belt Disc to pulley clearance mm (in.) C D 175 (10.7) Cylinder bore × stroke (Max.) mm (in.) B A/C System Oil Type S (DH-PS) Total in system 150 (5.3) Compressor (service part) charging amount 150 (5.3) Refrigerant G H HA INFOID:0000000007412132 J Type HFC-134a (R-134a) Capacity kg (lb) K 0.60 (1.32) Engine Idling Speed INFOID:0000000007412133 Refer to the following • Refer to EC-332, "Idle Speed" (QR25DE models) • Refer to EC-734, "Idle Speed" (VQ35DE models type 1) • Refer to EC-1078, "Idle Speed" (VQ35DE models type 2) • Refer to EC-1597, "Idle Speed" (VQ35DE models type 3) Belt Tension L M INFOID:0000000007412134 N Refer to EM-115, "Drive belt" (QR25DE models) or EM-258, "Drive Belt" (VQ35DE models) O P Revision: 2011 July HA-67 Z51