2005 NISSAN X-TRAIL ESP

DI-28
COMBINATION METERS

6. CHECK INSTALLATION CONDITION
Check fuel level sensor unit installation, and check whether the float arm interferes or binds with any of the
internal components in the fuel tank.
OK or NG
OK >> Replace combination meter.
NG >> Install fuel level sensor unit properly.
Engine Speed Signal Inspection EKS00EHD
1. CHECK ECM SELF-DIAGNOSIS
Perform ECM self-diagnosis. Refer to EC-103, "
CONSULT-II Function (ENGINE)" [QR (WITH EURO-OBD)],
EC-604, "
CONSULT-II Function (ENGINE)" [QR (WITHOUT EURO -OBD)] or EC-1034, "CONSULT-II Func-
tion (ENGINE)" [YD].
OK or NG
OK >> Replace combination meter.
NG >> Perform “Diagnostic Procedure” in displayed DTC.
Engine Coolant Temperature Signal InspectionEKS00EHE
1. CHECK ECM SELF-DIAGNOSIS
Perform ECM self-diagnosis. Refer to EC-103, "
CONSULT-II Function (ENGINE)" [QR (WITH EURO-OBD)],
EC-604, "
CONSULT-II Function (ENGINE)" [QR (WITHOUT EURO - OBD)] or EC-1034, "CONSULT-II Func-
tion (ENGINE)" [YD].
OK or NG
OK >> Replace combination meter.
NG >> Perform “Diagnostic Procedure” in displayed DTC.
Vehicle Speed Signal Inspection [With ESP]EKS00EHF
1. CHECK ESP/TCS/ABS CONTROL UNIT SELF-DIAGNOSIS
Perform ESP/TCS/ABS control unit self-diagnosis. Refer to BRC-79, "
CONSULT-II Functions" .
OK or NG
OK >> Replace combination meter.
NG >> Check applicable parts.
Vehicle Speed Signal Inspection [Without ESP]EKS00EJB
1. CHECK ABS ACTUATOR CONTROL UNIT SELF-DIAGNOSIS
Perform ABS actuator and electric unit self-diagnosis. Refer to BRC-26, "
CONSULT- II Functions" .
OK or NG
OK >> Replace combination meter.
NG >> Check applicable parts.
The Fuel Gauge Pointer Fluctuates, Indicator Wrong Value or VariesEKS00EHG
1. CHECK FUEL GAUGE FLUCTUATION
Test drive vehicle to see if gauge fluctuates only during driving or at the instant of stopping.
Does the indication value vary only during driving or at the instant of stopping?
YES >> The pointer fluctuation may be caused by fuel level change in the fuel tank. Condition is normal.
NO >> Ask the customer about the situation when the symptom occurs in detail, and perform the trouble
diagnosis.

COMBINATION METERS
DI-31
C
D
E
F
G
H
I
J
L
MA
B
DI

Ambient Temperature Signal Inspection [With Auto A/C]EKS00EJ7
1. CHECK AUTO A/C RECOGNITION SIGNAL INPUT
1. Turn ignition switch OFF.
2. Disconnect combination meter connector.
3. Turn ignition switch ON.
4. Check voltage between combination meter harness connector
M44 terminal 29 (Y) and ground.
OK or NG
OK >> GO TO 3.
NG >> GO TO 2.
2. CHECK AUTO A/C RECOGNITION SIGNAL CIRCUIT
1. Turn ignition switch OFF.
2. Disconnect A/C auto amp. connector.
3. Check continuity between combination meter harness connector
M44 terminal 29 (Y) and A/C auto amp. harness connector M53
terminal 28(Y).
4. Check continuity between combination meter harness connector
M44 terminal 29 (Y) and ground.
OK or NG
OK >> Replace A/C auto amp.
NG >> Repair harness or connector.
3. CHECK AMBIENT SENSOR CIRCUIT BETWEEN AMBIENT SENSOR AND COMBINATION METER
1. Turn ignition switch OFF.
2. Disconnect ambient sensor connector.
3. Check continuity between combination meter harness connector
M44 terminal 27 (R/B) and ambient sensor harness connector
E38 terminal 1 (R/B).
4. Check continuity between combination meter harness connector
M44 terminal 27 (R/B) and ground.
OK or NG
OK >> GO TO 4.
NG >> Repair harness or connector.
4. CHECK A/C AUTO AMP. CIRCUIT
Check A/C auto amp. circuit. Refer to ATC-109, "
Ambient Sensor Circuit" in ATC section.
OK or NG
OK >> Replace combination meter.
NG >> Check applicable parts, and repair or replace corresponding parts.Approx. 5 V
SKIA9136E
Continuity should exist.
Continuity should not exist.
SKIB0604E
Continuity should exist.
Continuity should not exist.
SKIA9135E

LAN-2 CHECK SHEET ................................................... 72
CHECK SHEET RESULTS (EXAMPLE) ............. 73
Inspection Between ESP/TCS/ABS Control Unit
and 4WD Control Unit Circuit ................................. 79
ECM Circuit Inspection ........................................... 80
ESP/TCS/ABS Control Unit Circuit Inspection ........ 81
Steering Angle Sensor Circuit Inspection ............... 81
4WD Control Unit Circuit Inspection ....................... 82
Combination Meter Circuit Inspection ..................... 82
CAN Communication Circuit Inspection .................. 83
Component Inspection ............................................ 85
CHECK ECM AND COMBINATION METER
INTERNAL CIRCUIT ........................................... 85
CAN SYSTEM (TYPE 5) ........................................... 86
System Description ................................................. 86
Component Parts and Harness Connector Location ... 86
Wiring Diagram — CAN — ..................................... 87
Work Flow ............................................................... 89
CHECK SHEET ................................................... 90
CHECK SHEET RESULTS (EXAMPLE) ............. 91
Inspection Between ESP/TCS/ABS Control Unit
and 4WD Control Unit Circuit ................................. 97
ECM Circuit Inspection ........................................... 98
ESP/TCS/ABS Control Unit Circuit Inspection ........ 99
Steering Angle Sensor Circuit Inspection ............... 99
4WD Control Unit Circuit Inspection .....................100
Combination Meter Circuit Inspection ...................100
CAN Communication Circuit Inspection ................101
Component Inspection ..........................................103
CHECK ECM AND COMBINATION METER
INTERNAL CIRCUIT .........................................103
CAN SYSTEM (TYPE 6) .........................................104
System Description ...............................................104
Component Parts and Harness Connector Location .104
Wiring Diagram — CAN — ...................................105
Work Flow .............................................................107
CHECK SHEET .................................................108
CHECK SHEET RESULTS (EXAMPLE) ...........109
Inspection Between TCM and ESP/TCS/ABS Con-
trol Unit Circuit ......................................................117
Inspection Between ESP/TCS/ABS Control Unit
and 4WD Control Unit Circuit ...............................119
ECM Circuit Inspection .........................................121
TCM Circuit Inspection .........................................122
ESP/TCS/ABS Control Unit Circuit Inspection ......122
Steering Angle Sensor Circuit Inspection .............123
4WD Control Unit Circuit Inspection .....................123
Combination Meter Circuit Inspection ...................124
CAN Communication Circuit Inspection ................125
Component Inspection ..........................................129
CHECK ECM AND COMBINATION METER INTERNAL CIRCUIT ..........................................129
CAN SYSTEM (TYPE 7) ..........................................130
System Description ...............................................130
Component Parts and Harness Connector Location .130
Wiring Diagram — CAN — ...................................131
Work Flow .............................................................133
CHECK SHEET .................................................134
CHECK SHEET RESULTS (EXAMPLE) ............135
ECM Circuit Inspection .........................................138
ABS Actuator and Electric Unit (Control Unit) Circuit
Inspection ..............................................................138
Combination Meter Circuit Inspection ...................139
CAN Communication Circuit Inspection ................140
Component Inspection ..........................................142
CHECK ECM AND COMBINATION METER
INTERNAL CIRCUIT ..........................................142
CAN SYSTEM (TYPE 8) ..........................................143
System Description ...............................................143
Component Parts and Harness Connector Location .143
Wiring Diagram — CAN — ...................................144
Work Flow .............................................................146
CHECK SHEET .................................................147
CHECK SHEET RESULTS (EXAMPLE) ............148
ECM Circuit Inspection .........................................151
ABS Actuator and Electric Unit (Control Unit) Circuit
Inspection ..............................................................151
Combination Meter Circuit Inspection ...................152
CAN Communication Circuit Inspection ................153
Component Inspection ..........................................155
CHECK ECM AND COMBINATION METER
INTERNAL CIRCUIT ..........................................155
CAN SYSTEM (TYPE 9) ..........................................156
System Description ...............................................156
Component Parts and Harness Connector Location .156
Wiring Diagram — CAN — ...................................157
Work Flow .............................................................159
CHECK SHEET .................................................160
CHECK SHEET RESULTS (EXAMPLE) ............161
Inspection Between ESP/TCS/ABS Control Unit
and steering angle sensor Circuit .........................166
ECM Circuit Inspection .........................................167
ESP/TCS/ABS Control Unit Circuit Inspection ......168
Steering Angle Sensor Circuit Inspection ..............168
Combination Meter Circuit Inspection ...................169
CAN Communication Circuit Inspection ................169
Component Inspection ..........................................171
CHECK ECM AND COMBINATION METER
INTERNAL CIRCUIT ..........................................171

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/TYPE 2
System diagram
Body type Wagon
Axle 4WD 2WD
Engine YD22DDTi QR20DE/QR25DE YD22DDTi QR25DE QR20DE YD22DDTi
Transmission M/T A/T M/T A/T M/T
Brake control ABS ESP ABS ESP
CAN system type 1 2 3 4 5 6 7 8 9
CAN system trouble diagnosisLAN-11
LAN-27LAN-43LAN-68LAN-
86
LAN-
104LAN-130LAN-
143
LAN-
156
ECM×××××××××
TCM××
ESP/TCS/ABS control unit××× ×
ABS actuator and electric unit
(control unit)××× ××
Steering angle sensor××× ×
4WD control unit××××××
Combination meter×××××××××
PKIA6458E

CAN COMMUNICATION
LAN-7
[CAN]
C
D
E
F
G
H
I
J
L
MA
B
LAN

Input/output signal chart
T: Transmit R: Receive
*1: YD engine models only
*2: QR engine models only
TYPE 6
System diagram
Signals ECMESP/TCS/ABS
control unitSteering angle
sensor4WD control
unitCombination
meter
4WD mode indicator lamp signalTR
4WD warning lamp signalTR
A/C compressor feedback signal*
2TR
A/C switch signal*
1RT
ABS warning lamp signal T R
Accelerator pedal position signal T R R
Brake warning lamp signal T R
Engine coolant temperature signal TR
Engine speed signal T R R R
ESP OFF indicator lamp signal T R
Glow indicator lamp signal*1 TR
MI signal TR
Stop lamp switch signal T R
Vehicle speed signalTRR
RT
SLIP indicator lamp signal T R
Parking brake switch signalRT
Steering angle sensor signal R T
ASCD SET lamp signal TR
ASCD CRUISE lamp signal TR
PKIA9635E

LAN-8
[CAN]
CAN COMMUNICATION

Input/output signal chart
T: Transmit R: Receive
Signals ECM TCMESP/TCS/
ABS control
unitSteering
angle sensor4WD control
unitCombination
meter
4WD mode indicator lamp signalTR
4WD warning lamp signalTR
A/C compressor feedback signal TR
A/T position indicator lamp signal T R R
A/T self-diagnosis signal R T
ABS warning lamp signal T R
Accelerator pedal position signal T R R
Brake warning lamp signal T R
Closed throttle position signal T R
Engine and A/T integratedTR
RT
Engine coolant temperature signal TR
Engine speed signal T R R R
ESP OFF indicator lamp signal T R
MI signal TR
O/D OFF indicator signal T R
Output shaft revolution signal R T
Overdrive control switch signal R T
P·N range signal R T
SLIP indicator lamp signal T R
Steering angle sensor signal R T
Stop lamp switch signalRT
TR
Vehicle speed signalTRR
RT
Parking brake switch signalRT
Wide open throttle position signal T R
ASCD SET lamp signal TR
ASCD CRUISE lamp signal TR

LAN-10
[CAN]
CAN COMMUNICATION

TYPE 9
System diagram
Input/output signal chart
T: Transmit R: Receive
PKIC0343E
Signals ECM ESP/TCS/ABS control unit Steering angle sensor Combination meter
A/C switch signal RT
ABS warning lamp signal T R
Accelerator pedal position signal T R
Brake warning lamp signal T R
Engine coolant temperature signal TR
Engine speed signal T R R
ESP OFF indicator lamp signal T R
Glow indicator lamp signal TR
MI signal TR
Vehicle speed signalTR
RT
SLIP indicator lamp signal T R
Steering angle sensor signal R T
ASCD SET lamp signal TR
ASCD CRUISE lamp signal TR

CAN SYSTEM (TYPE 4)
LAN-73
[CAN]
C
D
E
F
G
H
I
J
L
MA
B
LAN

CHECK SHEET RESULTS (EXAMPLE)
NOTE:
If a check mark is put on “NG” on “INITIAL DIAG (Initial diagnosis)”, replace the control unit.
Case 1
Check harness between ESP/TCS/ABS control unit and 4WD control unit. Refer to LAN-79, "Inspection
Between ESP/TCS/ABS Control Unit and 4WD Control Unit Circuit" .
PKIB9065E
PKIA9636E