heater NISSAN X-TRAIL 2003 Electronic Repair Manual

MTC-24
HEATER UNIT
7. Remove the mounting bolts from heater unit.
8. Remove the steering member.
9. Remove the heater unit.
INSTALLATION
1. Installation is basically the reverse order of removal.
NOTE:
When filling radiator with coolant, refer to QR20DE:CO-9, "
Changing Engine Coolant",YD22DDTi:CO-30,
"Changing Engine Coolant".
Disassembly and AssemblyEJS001FA
NOTE:
This illustration is for RHD models. The layout for LHD models is symmetrically opposite.
RJIA0063E
1 Screw 2 Air mix door link 3 Air mix door gear
4Screw 5Cablebracket 6Screw
7 Foot duct (right) 8 Screw 9 Ventilator door link 2
10 Ventilator door link 2 11 Ventilator door lever 12 Main link
13 Max cool door lever 14 Defroster door lever 15 Heater case (right)
16 Defroster door 17 Ventilator door 18 Max cool door
19 Heater case (left) 20 Screw 21 Heater pipe support
RJIA0613E

HEATER UNIT
MTC-25
C
D
E
F
G
H
I
K
L
MA
B
MTC
22 Evaporator cover 23 Screw 24 Heater core
25 Heater core cover 26 Foot duct (left) 27 Screw

MTC-26
HEATER CORE
HEATER CORE
PFP:27140
Removal and InstallationEJS000XV
1. Remove the heater unit.
2. Remove the heater pipe support.
3. Remove the foot duct and heater core cover.
4. Remove the heater core from the heater unit.
RJIA0069E

MTC-30
DUCTS AND GRILLES
Foot Duct
EJS000Y0
1. Remove the heater unit.
2. Remove the foot duct.
Floor ductEJS000Y1
1. Remove the front seats.
2. Remove the instrument lower center panel.
3. Remove the front floor duct.
4. Peel back the floor trim to a point where the floor duct is visible.
5. Remove the mounting screw and clip from the rear floor duct.
6. Remove the rear floor duct.
RJIA0069E
RJIA0070E
RJIA0071E

HARNESS
PG-61
C
D
E
F
G
H
I
J
L
MA
B
PG
Wiring Diagram Codes (Cell Codes)EKS0032J
Use the chart below to find out what each wiring diagram code stands for.
Refer to the wiring diagram code in the alphabetical index to find the location (page number) of each wiring
diagram.
Code Section Wiring Diagram Name
1STSIG AT A/T 1st Signal
2NDSIG AT A/T 2nd Signal
3RDSIG AT A/T 3rd Signal
4THSIG AT A/T 4th Signal
4WD BRC 4WD Control system
A/C ATC Air Conditioner
ABS BRC ABS Control System
APPS EC Accelerator Pedal Position (APP) Sensor
APRSW EC Accelerator Pedal Released Position Sensor
AT/IND DI A/T Indicator
AUDIO AV Audio
BA/FTS AT A/T Fluid Temperature Sensor and TCM Power Supply
BACK/L LT Back-up Lamp
BRK/SW EC Brake Switch
CAN EC,AT CAN Communication Line
CAN LAN CAN System
CHARGE SC Charging System
CHIME DI Warning Chime
CIGAR WW Cigarette Lighter
CLOCK DI Clock
CKPS EC Crankshaft Position Sensor
CMPS EC Camshaft Position Sensor
COOL/F EC Cooling Fan Control
CRFPS EC Common Rail Fuel Pressure Sensor
D/LOCK BL Power Door Lock
DEF GW Rear Window Defogger
DTRL LT Headlamp - With Daytime Light System
ECM/PW EC ECM Power
ECMRLY EC ECM Relay
ECTS EC Engine Coolant Temperature Sensor
EGRC/V EC EGR Volume Control Valve
ENGSS AT Engine Speed Signal
F/FOG LT Front Fog Lamp
FIAR EC Fuel Injector Adjustment resister
FRO2 EC Heated Oxygen Sensor 1 (Front)
FRO2/H EC Heated Oxygen Sensor 1 Heater (Front)
FTS EC Fuel Temperature Sensor
FTS AT A/T Fluid Temperature Sensor
FUEL EC Fuel Injection System Function
GLOW EC Glow Control System
H/AIM LT Headlamp Aiming Control System
H/LAMP LT Headlamp
H/SEAT SE Heated Seat
HEATER MTC Heater System
HLC WW Headlamp Cleaner
HO2S1 EC Heated Oxygen Sensor 1 (Front)

PG-62
HARNESS
HO2S1H EC Heated Oxygen Sensor 1 (Front)
HO2S2 EC Heated Oxygen Sensor 1 (Rear)
HO2S2H EC Heated Oxygen Sensor 1 (Rear)
HORN WW Horn
IATS EC Intake Air Temperature Sensor
IATSEN EC Intake Air Temperature Sensor
IGNSYS EC Ignition Signal
ILL LT Illumination
INJECT EC Injector
INT/L LT Map Lamp
IVC EC Intake Valve Timing Control Solenoid Valve
IVC/V EC Intake Valve Timing Control Solenoid Valve
KS EC Knock Sensor (KS)
LOAD EC Electrical Load Signal
LPSV AT Line Pressure Solenoid Valve
MAFS EC MassAirFlowSensor(MAFS)
MAIN EC, AT Main Power Supply and Ground Circuit
METER DI Meter and Gauge
MIL EC Malfunction Indicator Lamp
MIL/DL EC MIL and Data Link Connector
MIRROR GW Door Mirror
MULTI BL Multi-Remote Control System
NATS BL Nissan Anti-Theft System
NONDTC AT Non-Detective Items
OVRCSV AT Overrun Clutch Solenoid Valve
PGC/V EC EVAP Canister Purge Volume Control Solenoid Valve
PHASE EC Camshaft Position Sensor (PHASE)
PNP/SW EC, AT Park/Neutral Position (PNP) Switch
PNPSW1 EC Park/Neutral Position (PNP) Switch
POS EC Crankshaft Position Sensor (CKPS)(POS)
POWER PG Power Supply Routing
PRGVLV EC EVAP Canister Purge Volume Control Solenoid Valve
PRWIRE BL Theft Warning System (Pre-wire)
PS/SEN EC Power Steering Pressure Sensor
PST/SW EC Power Steering Oil Pressure Switch
R/FOG LT Rear Fog Lamp
ROOM/L LT Interior Room Lamp
RP/SEN EC Refrigerant Pressure Sensor
RRO2 EC Heated Oxygen Sensor 2 (Rear)
RRO2/H EC Heated Oxygen Sensor 2 Heater (Rear)
S/LOCK BL Super Lock
S/SIG EC Start Signal
SCTC/V EC Suction Control Valve
SHIFT AT A/T Shift Lock System
SROOF BL Sunroof
SRS SRS Supplemental Restraint System (SRS)
SSV/A AT Shift Solenoid Valve A
SSV/B AT Shift Solenoid Valve B
START SC Starting System
STOP/L LT Stop Lamp
T/MTR EC Throttle Control Motor
TAIL/L LT Parking, License and Tail Lamps

FRONT SEAT
SE-7
C
D
E
F
G
H
J
K
L
MA
B
SE
FRONT SEATPFP:87000
Component Parts DrawingEIS000NN
SIIA0242E
1 Side air bag module 2 Seat back frame 3 Seat back trim
4 Headrest holder (free) 5 Headrest holder (locked) 6 Headrest
7 Seat back pad 8 Seat cushion frame 9 Seat cushion heater unit
10 Seat cushion pad 11 Seat back heater unit 12 Seat cushion trim
13 Outer slide cover (RH) 14 Reclining lever knob 15 Lifter dial
16 Outer seat cushion finisher (RH) 17 Front seat adjuster 18 Rear inner slide cover (RH)
19 Inner seat cushion finisher (RH) 20 Seat belt buckle 21 Front inner slide cover (RH)