2003 NISSAN X-TRAIL coolant

MTC-28
HEATER UNIT

8. Remove steering member.
NOTE:
This illustration is for RHD models. The layout for LHD models is symmetrically opposite.
9. Remove heater unit.
INSTALLATION
Installation is basically the reverse order of removal.
NOTE:
When filling radiator with coolant, refer to CO-9, "
Changing Engine Coolant" for QR engine or CO-31, "Chang-
ing Engine Coolant" for YD engine.
RJIA2404E

DI-4
COMBINATION METERS

COMBINATION METERSPFP:24814
System DescriptionEKS00EGZ
UNIFIED CONTROL METER

Speedometer, odo/trip meter, tachometer, fuel gauge and water temperature gauge are controlled by the
unified meter control unit, which is built into the combination meter.

Digital meter is adopted for odo/trip meter.*
*The record of the odo meter is kept even if the battery cable is disconnected. The record of the trip meter
is erased when the battery cable is disconnected.

Odo/trip meter segments can be checked in diagnosis mode.

Meter/gauge can be checked in diagnosis mode.
HOW TO CHANGE THE DISPLAY FOR ODO/TRIP METER

The vehicle speed signal and the memory signals from the meter memory circuit are processed by the
combination meter and the mileage is displayed.

Ambient temperature indicator indicates signal from ambient sensor processed by combination meter.

Depressing the odo/trip meter switch toggles the mode in the following order.

The odo/trip meter display mode toggling and trip display resetting can be identified by the amount of time
that elapses from pressing the odo/trip meter switch to releasing it.

When resetting with trip A displayed, only trip A display is reset (Trip B operates the same way).
POWER SUPPLY AND GROUND CIRCUIT
Power is supplied at all times

through 10A fuse [No. 28, located in the fuse block (J/B)]

to combination meter terminal 1.
With the ignition switch in the ON or START position, power is supplied

through 10A fuse [No. 11, located in the fuse block (J/B)]

to combination meter terminals 2.
Ground is supplied

to combination meter terminals 21

through body grounds M27 and M70.
WATER TEMPERATURE GAUGE
The water temperature gauge indicates the engine coolant temperature.
ECM provides an engine coolant temperature signal to combination meter for water temperature gauge with
CAN communication line.
SKIA8917E

COMBINATION METERS
DI-7
C
D
E
F
G
H
I
J
L
MA
B
DI

TYPE 1
System diagram
Input/output signal chart
T: Transmit R: Receive
PKIA6458E
Signals ECMABS actuator and
electric unit
(control unit)4WD control unit Combination meter
Engine speed signal T R R
Engine coolant temperature signal T R
A/C compressor feedback signal T R
Vehicle speed signalTRR
RT
ABS warning lamp signal T R
4WD warning lamp signalTR
4WD mode indicator lamp signal T R
Parking brake switch signalRT
MI signal T R

DI-8
COMBINATION METERS

TYPE 2
System diagram
Input/output signal chart
T: Transmit R: Receive
PKIA6457E
Signals ECM TCMABS actuator
and electric unit
(control unit)4WD control
unitCombination
meter
Stop lamp switch signalRT
TR
P·N range signal R T
A/T position indicator lamp signal T R
Overdrive control switch signal R T
O/D OFF indicator signal T R
Engine speed signal T R R
Engine coolant temperature signal TR
A/C compressor feedback signal TR
Vehicle speed signalTRR
RT
ABS warning lamp signal T R
4WD warning lamp signalTR
4WD mode indicator lamp signalTR
Parking brake switch signalRT
MI signal TR

COMBINATION METERS
DI-9
C
D
E
F
G
H
I
J
L
MA
B
DI

TYPE 3/TYPE4
System diagram
Input/output signal chart
T: Transmit R: Receive
*1: YD engine models only
*2: QR engine models only
PKIA6459E
Signals ECMESP/TCS/ABS
control unitSteering angle
sensor4WD control
unitCombination
meter
Engine speed signal T R R R
Engine coolant temperature signal TR
A/C switch signal*
1RT
A/C compressor feedback signal*
2TR
Vehicle speed signalTRR
RT
ABS warning lamp signal T R
Brake warning lamp signal T R
SLIP indicator lamp signal T R
ESP OFF indicator lamp signal T R
4WD warning lamp signalTR
4WD mode indicator lamp signalTR
Parking brake switch signalRT
MI signal TR
Glow indicator lamp signal*
1TR

DI-10
COMBINATION METERS

TYPE 5
System diagram
Input/output signal chart
T: Transmit R: Receive
PKIA6460E
Signals ECM TCMESP/TCS/
ABS control
unitSte ering
angle sensor4WD control
unitCombination
meter
Stop lamp switch signalRT
TR
P·N range signal R T
A/T position indicator lamp signal T R R
O/D OFF indicator signal T R
Overdrive control switch signal R T
Engine speed signal T R R R
Engine coolant temperature signal TR
A/C compressor feedback signal TR
Vehicle speed signalTRR
RT
ABS warning lamp signal T R
Brake warning lamp signal T R
SLIP indicator lamp signal T R
ESP OFF indicator lamp signal T R
4WD warning lamp signalTR
4WD mode indicator lamp signalTR
Parking brake switch signalRT
MI signal TR

LAN-4
[CAN]
CAN COMMUNICATION

CAN COMMUNICATIONPFP:23710
System DescriptionEKS001U3
CAN (Controller Area Network) is a serial communication line for real time application. It is an on-vehicle mul-
tiplex communication line with high data communication speed and excellent error detection ability. Many elec-
tronic control units are equipped onto a vehicle, and each control unit shares information and links with other
control units during operation (not independent). In CAN communication, control units are connected with 2
communication lines (CAN H line, CAN L line) allowing a high rate of information transmission with less wiring.
Each control unit transmits/receives data but selectively reads required data only.
CAN Communication UnitEKS00EGL
Go to CAN system, when selecting your CAN system type from the following table.
TYPE 1
System diagram
Input/output signal chart
T: Transmit R: Receive Body typeWagon
Axle4WD
Engine QR20DE/QR25DE QR25DE YD22DDTi QR25DE
Transmission M/T A/T M/T A/T
Brake control ABS ESP
CAN system type 1 2 3 4 5
CAN system trouble diagnosisLAN-9
LAN-25LAN-50LAN-68LAN-86
PKIA6458E
Signals ECMABS actuator and
electric unit
(control unit)4WD control unit Combination meter
Stop lamp switch signal T R
Engine speed signal T R R
Engine coolant temperature signal T R
Accelerator pedal position signal T R
A/C compressor feedback signal T R
Vehicle speed signalTRR
RT

CAN COMMUNICATION
LAN-5
[CAN]
C
D
E
F
G
H
I
J
L
MA
B
LAN

TYPE 2
System diagram
Input/output signal chart
T: Transmit R: Receive ABS warning lamp signal T R
4WD warning lamp signalTR
4WD mode indicator lamp signal T R
Parking brake switch signalRT
MI signal T RSignals ECMABS actuator and
electric unit
(control unit)4WD control unit Combination meter
PKIA6457E
Signals ECM TCMABS actuator
and electric unit
(control unit)4WD control
unitCombination
meter
Stop lamp switch signalRT
TR
P·N range signal R T
A/T position indicator lamp signal T R
Overdrive control switch signal R T
O/D OFF indicator signal T R
Closed throttle position signal T R
Wide open throttle position signal T R
Engine speed signal T R R
Engine coolant temperature signal TR
Accelerator pedal position signal T R
Output shaft revolution signal R T
A/C compressor feedback signal TR
Vehicle speed signalTRR
RT
ABS warning lamp signal T R