heating NISSAN NAVARA 2005 Repair Owner's Manual

MTC-2
Schematic —LHD MODELS— ............................... 38
Wiring Diagram —A/C— —LHD MODELS— ......... 39
Schematic —RHD MODELS— ............................... 44
Wiring Diagram —A/C— —RHD MODELS— ......... 45
Front Air Control Terminals and Reference Value... 49
PIN CONNECTOR TERMINAL LAYOUT ............ 49
TERMINALS AND REFERENCE VALUE FOR
FRONT AIR CONTROL ....................................... 49
A/C System Self-diagnosis Function ...................... 51
DESCRIPTION .................................................... 51
Operational Check .................................................. 53
CHECKING BLOWER ......................................... 53
CHECKING DISCHARGE AIR ............................ 53
CHECKING RECIRCULATION ............................ 53
CHECKING TEMPERATURE DECREASE ......... 54
CHECKING TEMPERATURE INCREASE .......... 54
CHECK A/C SWITCH .......................................... 54
Power Supply and Ground Circuit for Front Air Con-
trol ........................................................................... 55
INSPECTION FLOW ........................................... 55
COMPONENT DESCRIPTION ............................ 56
DIAGNOSTIC PROCEDURE FOR A/C SYSTEM... 56
Mode Door Motor Circuit ........................................ 58
INSPECTION FLOW ........................................... 58
SYSTEM DESCRIPTION .................................... 59
COMPONENT DESCRIPTION ............................ 59
DIAGNOSTIC PROCEDURE FOR MODE
DOOR MOTOR ................................................... 59
Air Mix Door Motor Circuit ...................................... 63
INSPECTION FLOW ........................................... 63
SYSTEM DESCRIPTION .................................... 64
COMPONENT DESCRIPTION ............................ 64
DIAGNOSTIC PROCEDURE FOR AIR MIX
DOOR MOTOR (FRONT) .................................... 64
Intake Door Motor Circuit ........................................ 68
INSPECTION FLOW ........................................... 68
SYSTEM DESCRIPTION .................................... 69
COMPONENT DESCRIPTION ............................ 69
DIAGNOSTIC PROCEDURE FOR INTAKE
DOOR MOTOR ................................................... 69
Blower Motor Circuit ............................................... 71
INSPECTION FLOW ........................................... 71
SYSTEM DESCRIPTION .................................... 72
COMPONENT DESCRIPTION ............................ 72
DIAGNOSTIC PROCEDURE FOR BLOWER
MOTOR ............................................................... 73
COMPONENT INSPECTION .............................. 77
Magnet Clutch Circuit ............................................. 79
INSPECTION FLOW ........................................... 79
SYSTEM DESCRIPTION .................................... 80
DIAGNOSTIC PROCEDURE FOR MAGNET
CLUTCH .............................................................. 80
COMPONENT INSPECTION .............................. 85
Insufficient Cooling ................................................. 86
INSPECTION FLOW ........................................... 86
PERFORMANCE TEST DIAGNOSES ................ 87
PERFORMANCE CHART ................................... 89
TROUBLE DIAGNOSES FOR UNUSUAL PRES-
SURE ................................................................... 90Insufficient Heating ................................................. 93
INSPECTION FLOW ............................................ 93
Noise ....................................................................... 94
INSPECTION FLOW ............................................ 94
Self-diagnosis ......................................................... 95
INSPECTION FLOW ............................................ 95
Intake Sensor Circuit ............................................... 95
COMPONENT DESCRIPTION ............................ 95
DIAGNOSTIC PROCEDURE FOR INTAKE SEN-
SOR ..................................................................... 96
COMPONENT INSPECTION ............................... 97
CONTROL UNIT ........................................................ 98
Removal and Installation ......................................... 98
REMOVAL ............................................................ 98
INSTALLATION .................................................... 98
INTAKE SENSOR ...................................................... 99
Removal and Installation ......................................... 99
REMOVAL ............................................................ 99
INSTALLATION .................................................... 99
BLOWER MOTOR ...................................................100
Components ..........................................................100
Removal and Installation .......................................100
REMOVAL ..........................................................100
INSTALLATION ..................................................100
AIR CONDITIONER FILTER ...................................101
Removal and Installation .......................................101
FUNCTION ........................................................101
REPLACEMENT TIMING ..................................101
REPLACEMENT PROCEDURE ........................101
HEATER & COOLING UNIT ASSEMBLY ...............103
Components ..........................................................103
Removal and Installation .......................................105
REMOVAL ..........................................................105
INSTALLATION ..................................................105
HEATER CORE .......................................................106
Components ..........................................................106
Removal and Installation .......................................107
REMOVAL ..........................................................107
INSTALLATION ..................................................107
DEFROSTER DOOR MOTOR .................................108
Components ..........................................................108
Removal and Installation .......................................108
REMOVAL ..........................................................108
INSTALLATION ..................................................108
INTAKE DOOR MOTOR ..........................................109
Components ..........................................................109
Removal and Installation .......................................109
REMOVAL ..........................................................109
INSTALLATION ..................................................109
MODE DOOR MOTOR ............................................110
Components ..........................................................110
Removal and Installation .......................................110
REMOVAL ..........................................................110
INSTALLATION ..................................................110
AIR MIX DOOR MOTOR ......................................... 111
Components .......................................................... 111
Removal and Installation ....................................... 111
REMOVAL .......................................................... 111
INSTALLATION .................................................. 111

TROUBLE DIAGNOSIS
MTC-35
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B
MTC
How to Perform Trouble Diagnosis for Quick and Accurate RepairEJS005G5
WORK FLOW
SYMPTOM TABLE
*1: Self-diagnosis not available on vehicles not equipped with navigation system display screen.*1MTC-53, "
Operational Check"
SHA900E
Symptom Reference Page
A/C system does not come on. Go to Trouble Diagnosis Procedure for A/C System.MTC-55
A/C system cannot be controlled. Go to Self-diagnosis Function.MTC-51
Air outlet does not change.
Go to Trouble Diagnosis Procedure for Mode Door Motor.MTC-58
Mode door motor is malfunctioning.
Discharge air temperature does not change.
Go to Trouble Diagnosis Procedure for Air Mix Door Motor.MTC-63
Air mix door motor is malfunctioning.
Intake door does not change.
Go to Trouble Diagnosis Procedure for Intake Door Motor.MTC-68
Intake door motor is malfunctioning.
Blower motor operation is malfunctioning. Go to Trouble Diagnosis Procedure for Blower Motor.MTC-71
Magnet clutch does not engage. Go to Trouble Diagnosis Procedure for Magnet Clutch.MTC-79
Insufficient cooling Go to Trouble Diagnosis Procedure for Insufficient Cooling.MTC-86
Insufficient heating Go to Trouble Diagnosis Procedure for Insufficient Heating.MTC-93
Noise Go to Trouble Diagnosis Procedure for Noise.MTC-94
Self-diagnosis cannot be performed *1. Go to Trouble Diagnosis Procedure for Self-diagnosis.MTC-95

MTC-54
TROUBLE DIAGNOSIS
CHECKING TEMPERATURE DECREASE
1. Rotate temperature dial counterclockwise.
2. Check for cold air at appropriate discharge air outlets.
If NG, listen for sound of air mix door motor operation if OK, go to
trouble diagnosis procedure forMTC-86, "
Insufficient Cooling".Ifair
mix door motor appears to be malfunctioning, go toMTC-63, "
Air Mix
Door Motor Circuit".
If OK, continue with next check.
CHECKING TEMPERATURE INCREASE
1. Rotate temperature dial clockwise.
2. Check for hot air at appropriate discharge air outlets.
If NG, listen for sound of air mix door motor operation. If OK, go to
trouble diagnosis procedure forMTC-93, "
Insufficient Heating".Ifair
mix door motor appears to be malfunctioning, go toMTC-63, "
Air Mix
Door Motor Circuit".
If OK, continue with next check.
CHECK A/C SWITCH
1. Press A/C switch with the blower switch ON.
2. A/C switch indicator will turn ON.
lConfirm that the compressor clutch engages (sound or visual
inspection).
If NG, go to trouble diagnosis procedure forMTC-79, "
Magnet Clutch
Circuit".
If OK, continue with next check.
MJIB0226E
MJIB0227E
MJIB0228E

TROUBLE DIAGNOSIS
MTC-93
C
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MA
B
MTC
Insufficient HeatingEJS005GN
SYMPTOM: Insufficient heating
INSPECTION FLOW
*1 .MTC-53, "Operational Check".*2MTC-63, "Air Mix Door Motor Cir-
cuit".*3MTC-51, "
A/C System Self-diagno-
sis Function".
*4MTC-51, "
A/C System Self-diagno-
sis Function".*5MTC-71, "
Blower Motor Circuit".*6EC-103, "DTC P0117, P0118 ECT
SENSOR".
*7CO-7, "
Changing Engine Coolant".*8CO-13, "Checking Reservoir Tank
Cap".
MJIB0354E

AXLE SHAFT
RAX-11
[M226]
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RAX
INSPECTION AFTER DISASSEMBLY
Axle Shaft
lClean and remove all nicks and burrs.
lCheck for straightness and distortion. Replace if necessary.
lInspect machined surfaces for evidence of overheating, damage and wear. Replace if necessary.
lMeasure the bearing ring retainer axle journal diameter. Replace if necessary.
ASSEMBLY
1. Install a new grease catcher onto the axle shaft.
2. Reinstall studs on the axle shaft retainer, and install the axle shaft retainer on the axle shaft.
3. Install a new seal lip onto the axle shaft.
CAUTION:
lSeal lip can not be reused. Do not attempt to reuse it.
lWhen installing oil seals, apply multi-purpose grease to oil seal lips.
4. Install a new bearing on the axle shaft.
CAUTION:
lWheel bearing can not be reused. Do not attempt to reuse it.
5. Using a bearing inserter, and a suitable press, press fit the axle
shaft to the new bearing ring retainer, until the snap ring groove.
CAUTION:
lMake sure the bearing ring retainer, axle shaft bearing,
axle shaft lip seal, and axle shaft retainer are installed
facing in the correct direction.
lBearing ring retainer can not be reused. Do not attempt to
reuse it.
6. Apply grease to the bearing cup, and install onto the axle shaft
bearing.
7. Install a new snap ring using a suitable snap ring pliers.
CAUTION:
Discard the old snap ring: replace with new ones.
8. Install the new ABS rotor sensor. Refer toBRC-39, "
SENSOR ROTOR".
CAUTION:
Discard the old sensor rotor; replace with a new one.Bearing ring retainer axle journal diameter (minimum)
: 45.027 mm (1.7727 in)
MDIB9047E

SE-12
HEATED SEAT
HEATED SEAT
PFP:87335
DescriptionEIS00BC8
lWhen handling seat, be extremely careful not to scratch heating unit.
lTo replace heating unit, seat trim and pad should be separated.
lDo not use any organic solvent, such as thinner, benzene, alcohol, etc. to clean trim.
WIIA0031E