NISSAN X-TRAIL 2001 Service Repair Manual

TROUBLE DIAGNOSIS — GENERAL DESCRIPTION
AT-303
[EXC.F/EURO-OBD]
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Offensive smell at fluid charging pipe.ON vehicle 1. Fluid levelAT- 2 6 4 , "
FLUID LEVEL
CHECK"
OFF vehicle2. Torque converterAT- 4 2 5 , "
Locations of
Adjusting Shims, Needle
Bearings, Thrust Washers
and Snap Rings"
3. Oil pumpAT- 4 4 4 , "Oil Pump"
4. Reverse clutchAT- 4 6 3 , "Reverse Clutch"
5. High clutchAT- 4 6 6 , "High Clutch"
6. Brake bandAT- 4 8 8 , "Band Servo Pis-
ton Assembly"
7. Forward clutchAT- 4 7 1 , "Forward and
Overrun Clutches"
8. Overrun clutchAT- 4 7 1 , "Forward and
Overrun Clutches"
9. Low & reverse brakeAT- 4 7 6 , "Low & Reverse
Brake"
Torque converter is not locked up. ON vehicle1. Accelerator pedal position (APP) sensorAT- 3 6 2 , "
ACCELE
RATOR PEDAL POSI-
TION (APP) SENSOR"
2. Vehicle speed sensor·A/T (Revolution
sensor) and vehicle speed sensor·MTRAT- 3 5 3 , "
VEHICLE
SPEED SENSOR·A/T
(REVOLUTION SEN-
SOR)",AT-358, "DTC
VEHICLE SPEED SEN-
SOR MTR"
3. Engine speed signalAT- 3 9 2 , "ENGINE SPEED
SIGNAL"
4. A/T fluid temp sen circ and TCM pow
sourAT- 3 8 6 , "
BATT/FLUID
TEMP SEN (A/T FLUID
TEMP SENSOR CIR-
CUIT AND TCM POWER
SOURCE)"
5. Line pressure testAT- 2 6 8 , "Line Pressure
Te s t"
6. Torque converter clutch solenoid valveAT- 3 8 1 , "
TORQUE CON-
VERTER CLUTCH
SOLENOID VALVE"
7. Control valve assemblyAT- 4 1 4 , "
Control Valve
Assembly and Accumula-
tors"
Torque converter is not locked up. OFF vehicle 8. Torque converterAT- 4 2 5 , "
Locations of
Adjusting Shims, Needle
Bearings, Thrust Washers
and Snap Rings"
Symptom Condition Diagnostic Item Reference Page

AT-304
[EXC.F/EURO-OBD]
TROUBLE DIAGNOSIS — GENERAL DESCRIPTION
Torque converter clutch piston slip.ON vehicle1. Fluid levelAT-264, "
FLUID LEVEL
CHECK"
2. Accelerator pedal position (APP) sensorAT-362, "
ACCELE
RATOR PEDAL POSI-
TION (APP) SENSOR"
3. Line pressure testAT-268, "Line Pressure
Te s t"
4. Torque converter clutch solenoid valveAT-381, "
TORQUE CON-
VERTER CLUTCH
SOLENOID VALVE"
5. Line pressure solenoid valveAT-396, "
LINE PRES-
SURE SOLENOID
VA LV E"
6. Control valve assemblyAT-414, "
Control Valve
Assembly and Accumula-
tors"
OFF vehicle 7. Torque converterAT-425, "
Locations of
Adjusting Shims, Needle
Bearings, Thrust Washers
and Snap Rings"
Lock-up point is extremely high or low.
AT- 3 3 2 , "
A/T Does Not Perform Lock-
up"
ON vehicle1. Accelerator pedal position (APP) sensorAT-362, "
ACCELE
RATOR PEDAL POSI-
TION (APP) SENSOR"
2. Vehicle speed sensor·A/T (Revolution
sensor) and vehicle speed sensor·MTRAT-353, "
VEHICLE
SPEED SENSOR·A/T
(REVOLUTION SEN-
SOR)",AT-358, "DTC
VEHICLE SPEED SEN-
SOR MTR"
3. Torque converter clutch solenoid valveAT-381, "
TORQUE CON-
VERTER CLUTCH
SOLENOID VALVE"
4. Control valve assemblyAT-414, "
Control Valve
Assembly and Accumula-
tors"
Symptom Condition Diagnostic Item Reference Page

TROUBLE DIAGNOSIS — GENERAL DESCRIPTION
AT-305
[EXC.F/EURO-OBD]
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A/T does not shift to “D4 ” when driv-
ing with overdrive control switch “ON”.ON vehicle1. Accelerator pedal position (APP) sensorAT- 3 6 2 , "
ACCELE
RATOR PEDAL POSI-
TION (APP) SENSOR"
2. PNP switchAT- 3 4 4 , "TCM Self-diag-
nosis Does Not Activate"
3. Overdrive control switchAT- 3 4 4 , "TCM Self-diag-
nosis Does Not Activate"
4. Vehicle speed sensor·A/T (Revolution
sensor) and vehicle speed sensor·MTRAT- 3 5 3 , "
VEHICLE
SPEED SENSOR·A/T
(REVOLUTION SEN-
SOR)",AT-358, "DTC
VEHICLE SPEED SEN-
SOR MTR"
5. Shift solenoid valve AAT- 3 6 7 , "SHIFT SOLE-
NOID VALVE A"
6. Overrun clutch solenoid valveAT- 3 7 7 , "
OVERRUN
CLUTCH SOLENOID
VA LV E"
7. Control valve assemblyAT- 4 1 4 , "
Control Valve
Assembly and Accumula-
tors"
8. A/T fluid temp sen circ and TCM pow
sourAT- 3 8 6 , "
BATT/FLUID
TEMP SEN (A/T FLUID
TEMP SENSOR CIR-
CUIT AND TCM POWER
SOURCE)"
9. Line pressure testAT- 2 6 8 , "Line Pressure
Te s t"
A/T does not shift to “D4 ” when driv-
ing with overdrive control switch “ON”.OFF vehicle10. Brake bandAT- 4 8 8 , "
Band Servo Pis-
ton Assembly"
11. Overrun clutchAT- 4 7 1 , "Forward and
Overrun Clutches"
Engine is stopped at “R”, “D”, “2” and
“1” positions.ON vehicle1. Fluid levelAT- 2 6 4 , "
FLUID LEVEL
CHECK"
2. Torque converter clutch solenoid valveAT- 3 8 1 , "
TORQUE CON-
VERTER CLUTCH
SOLENOID VALVE"
3. Shift solenoid valve AAT- 3 6 7 , "SHIFT SOLE-
NOID VALVE A"
4. Shift solenoid valve BAT- 3 7 2 , "SHIFT SOLE-
NOID VALVE B"
5. Control valve assemblyAT- 4 1 4 , "
Control Valve
Assembly and Accumula-
tors"
Symptom Condition Diagnostic Item Reference Page

AT-306
[EXC.F/EURO-OBD]
TROUBLE DIAGNOSIS — GENERAL DESCRIPTION
TCM Terminals and Reference Value
ECS004VW
PREPARATION
●Measure voltage between each terminal and terminal 25 or 48
by following “TCM INSPECTION TABLE”.
TCM HARNESS CONNECTOR TERMINAL LAYOUT
TCM INSPECTION TABLE
(Data are reference values.)
SAT216J
SCIA0712E
Te r m i -
nal No.Wire color Item ConditionJudgementstan-
dard(Approx.)
1R/WLine pressure
solenoid valveWhen releasing accelerator pedal
after warming up engine.1.5 - 3.0V
When depressing accelerator pedal
fully after warming up engine.0V
2P/BLine pressure
solenoid valve
(with dropping
resistor)When releasing accelerator pedal
after warming up engine.5 - 14V
When depressing accelerator pedal
fully after warming up engine.0V
3GY/RTorque converter
clutch solenoid
valveWhen A/T performs lock-up. 8 - 15V
When A/T does not perform lock-up. 0V
5QR20DE:
B/W
QR25DE:
W/BCAN-H (high) — — —
6 L/R CAN-L (low) — — —
10 BR/W Power source
or When turning ignition switch to “ON”. Battery voltage
When turning ignition switch to
“OFF”.0V

TROUBLE DIAGNOSIS — GENERAL DESCRIPTION
AT-307
[EXC.F/EURO-OBD]
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11 L / WShift solenoid
valve AWhen shift solenoid valve A oper-
ates.
(When driving in “D1 ” or “D4 ”.)Battery voltage
When shift solenoid valve A does not
operate.
(When driving in “D
2 ” or “D3 ”.)0V
12 L/YShift solenoid
valve BWhen shift solenoid valve B oper-
ates.
(When driving in “D
1 ” or “D2 ”.)Battery voltage
When shift solenoid valve B does not
operate.
(When driving in “D
3 ” or “D4 ”.)0V
13 R/LO/D OFF indica-
tor lampWhen setting overdrive control or A/
T check switch in “OFF” position.0V
When setting overdrive control or A/
T check switch in “ON” position.Battery voltage
19 BR/W Power source
or Same as No. 10
20 L/BOverrun clutch
solenoid valveWhen overrun clutch solenoid valve
operates.Battery voltage
When overrun clutch solenoid valve
does not operate.0V
22 L/OROverdrive control
switch
and When setting overdrive control
switch in “ON” positionBattery voltage
When setting overdrive control
switch in “OFF” position0V
25 B/W Ground — — 0V
26 BR/YPNP switch “1”
position
and When setting selector lever to “1”
position.Battery voltage
When setting selector lever to other
positions.0V
27 LPNP switch “2”
positionWhen setting selector lever to “2”
position.Battery voltage
When setting selector lever to other
positions.0V
28 R/BPower source
(Memory back-up)
or When turning ignition switch to
“OFF”.Battery voltage
When turning ignition switch to “ON”. Battery voltage
29 W Revolution sensorWhen moving at 20 km/h (12 MPH),
use the CONSULT-II pulse frequency
measuring function.*1
CAUTION:
Connect the diagnosis data link
cable to the vehicle diagnosis
connector.
*1: A circuit tester cannot be used to
test this item.450 Hz
When vehicle parks.Under 1.3V or
over 4.5V
30 *3 G/B CONSULT- II (RX) — —
31 *3 GY/L CONSULT- II (TX) — — Termi-
nal No.Wire color Item ConditionJudgementstan-
dard(Approx.)

AT-308
[EXC.F/EURO-OBD]
TROUBLE DIAGNOSIS — GENERAL DESCRIPTION
*2: These terminals are connected to the ECM.
*3: These terminals are connected to the data link connector.32 *2 RThrottle position
sensor
(Power source)
or When turning ignition switch to “ON”. 4.5 - 5.5V
When turning ignition switch to
“OFF”.0V
34 W/GPNP switch “D”
position
and When setting selector lever to “D”
position.Battery voltage
When setting selector lever to other
positions.0V
35 L/WPNP switch “R”
positionWhen setting selector lever to “R”
position.Battery voltage
When setting selector lever to other
positions.0V
36 GPNP switch “N” or
“P” positionWhen setting selector lever to “N” or
“P” position.Battery voltage
When setting selector lever to other
positions.0V
39 *2 L/OREngine speed sig-
nal
and Refer to EC-479, "
ECM INSPEC-
TION TABLE" (QR25DE) or EC-
1166, "ECM INSPECTION TABLE"
(QR20DE).—
40 L/BVehicle speed
sensorWhen moving vehicle at 2 to 3 km/h
(1 to 2 MPH) for 1 m (3 ft) or more.Voltage varies
between less
than 0V and
more than 4.5V
41 W/RThrottle position
sensorWhen depressing accelerator pedal
slowly after warming up engine.
(Voltage rises gradually in response
to throttle position.)Fully-closed
throttle: 0.5V
Fully-open throt-
tle: 4V
42 BThrottle position
sensor
(Ground)———
45 P Stop lamp switchWhen depressing brake pedal. Battery voltage
When releasing brake pedal. 0V
47 BRA/T fluid tempera-
ture sensorWhen ATF temperature is 20°C
(68°F).1.5V
When ATF temperature is 80°C
(176°F).0.5V
48 B/W Ground — — — Te r m i -
nal No.Wire color Item ConditionJudgementstan-
dard(Approx.)

CAN COMMUNICATION
AT-309
[EXC.F/EURO-OBD]
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CAN COMMUNICATIONPFP:23710
System DescriptionECS004VQ
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.
FOR A/T MODELS
System diagram
Input/output signal chart
T: Transmit R: Receive
SKIA0884E
Signals ECM TCM
Engine coolant temperature signal T R
Accelerator pedal position signal T R
A/T self-diagnosis signal R T

AT-310
[EXC.F/EURO-OBD]
TROUBLE DIAGNOSES FOR SYMPTOMS
TROUBLE DIAGNOSES FOR SYMPTOMS
PFP:00100
Wiring Diagram — AT — NONDTCECS004V1
TCWA0053E

TROUBLE DIAGNOSES FOR SYMPTOMS
AT-311
[EXC.F/EURO-OBD]
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TCWA0054E

AT-312
[EXC.F/EURO-OBD]
TROUBLE DIAGNOSES FOR SYMPTOMS
O/D OFF Indicator Lamp Does Not Come On
ECS004V2
SYMPTOM:
O/D OFF indicator lamp does not come on for about 2 seconds
when turning ignition switch to “ON”.
1. CHECK TCM POWER SOURCE
1. Turn ignition switch to “ON” position.
(Do not start engine.)
2. Check voltage between TCM terminals 10, 19, 28 and ground.
3. Turn ignition switch to “OFF” position.
4. Check voltage between TCM terminal 28 and ground.
OK or NG
OK >> GO TO 2.
NG >> Check the following items:
●Harness for short or open between ignition switch and
TCM terminals 10, 19 and 28
●Refer to AT-350, "Wiring Diagram — AT — MAIN" .
●Ignition switch and fuse. Refer to PG-2, "POWER SUPPLY ROUTING" .
2. CHECK TCM GROUND CIRCUIT
1. Turn ignition switch to “OFF” position.
2. Disconnect TCM harness connector.
3. Check continuity between TCM terminals 25, 48 and ground.
If OK, check harness for short to ground and short to power.
OK or NG
OK >> GO TO 3.
NG >> Repair open circuit or short to ground or short to power
in harness or connectors. Refer to AT- 3 5 0 , "
Wiring Dia-
gram — AT — MAIN" .
SCIA0765E
Voltage: Battery voltage
Voltage: Battery voltage
SCIA0713E
Continuity should exist.
SCIA0766E