2001 NISSAN X-TRAIL diagram

TROUBLE DIAGNOSES FOR SYMPTOMS
AT-209
[EURO-OBD]
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O/D OFF Indicator Lamp Does Not Come OnECS004SU
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- 3 5 0 , "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

AT-260
[EXC.F/EURO-OBD]
TROUBLE DIAGNOSIS — INTRODUCTION
Diagnostic Worksheet
1.❏ Read the Fail-safe and listen to customer complaints.AT- 8 , "Wiring
Diagrams
and Trouble
Diagnosis",
AT-259,
"DIAGNOS-
TIC WORK-
SHEET"
2.❏ CHECK A/T FLUIDAT-264, "A/T
Fluid Check"❏ Leakage (Follow specified procedure)
❏ Fluid condition
❏ Fluid level
3.❏ Perform STALL TEST and LINE PRESSURE TEST.AT- 2 6 5 , "
Stall
Te s t",
AT-268, "
Line
Pressure
Te s t"
❏ Stall test — Mark possible damaged components/others.
❏ Torque converter one-way clutch
❏ Reverse clutch
❏ Forward clutch
❏ Overrun clutch
❏ Forward one-way clutch❏ Low & reverse brake
❏ Low one-way clutch
❏ Engine
❏ Line pressure is low
❏ Clutches and brakes except high clutch and
brake band are OK
❏ Line Pressure test — Suspected parts:
4.❏ Perform all ROAD TEST and mark required procedures.AT-269,
"Road Test"
4-1. Check before engine is started.AT-271, "1.
CHECK
BEFORE
ENGINE IS
STARTED"
❏ O/D OFF Indicator Lamp Does Not Come On, AT-312 .
❏ SELF-DIAGNOSTIC CONFIRMATION PROCEDURE — Mark detected items.
❏ Vehicle speed sensor·A/T (Revolution sensor), AT-353
.
❏ Vehicle speed sensor·MTR, AT- 3 5 8
.
❏ Accelerator pedal position (APP) sensor, AT-362
.
❏ Shift solenoid valve A, AT-367
.
❏ Shift solenoid valve B, AT-372
.
❏ Overrun clutch solenoid valve, AT-377
.
❏ Torque converter clutch solenoid valve, AT- 3 8 1
.
❏ A/T fluid temperature sensor and TCM power source, AT-386
.
❏ Engine speed signal, AT-392
.
❏ Line pressure solenoid valve, AT-396
.
❏ CAN communication line, AT-403
.
❏ Control unit (RAM), control unit (ROM), AT- 2 0 3 , "
DTC CONTROL UNIT (RAM), CONTROL UNIT
(ROM)" .
❏ Control unit (EEP ROM), AT- 2 0 5 , "
DTC CONTROL UNIT(EEPROM)" .
❏ PNP & overdrive control switches, and throttle position sensor, AT- 3 4 4
.
❏ Battery
❏ Others
4-2. Check at idleAT-272, "
2.
CHECK AT
IDLE"❏ Engine Cannot Be Started In “P” And “N” Position, AT-314 .
❏ In “P” Position, Vehicle Moves Forward Or Backward When Pushed, AT- 3 1 5
.
❏ In “N” Position, Vehicle Moves, AT- 3 1 5
.
❏ Large Shock. “N” → “R” Position, AT-317
.
❏ Vehicle Does Not Creep Backward In “R” Position, AT- 3 1 7
.
❏ Vehicle Does Not Creep Forward In “D”, “2” Or “1” Position, AT- 3 2 1
.

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

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

AT-350
[ALL]
MAIN POWER SUPPLY AND GROUND CIRCUIT
[ALL]MAIN POWER SUPPLY AND GROUND CIRCUITPFP:00100
Wiring Diagram — AT — MAINECS004TH
TCWA0036E

AT-352
[ALL]
MAIN POWER SUPPLY AND GROUND CIRCUIT
3. DETECT MALFUNCTIONING ITEM
Check the following items:
●Harness for short or open between ignition switch and TCM terminals 10, 19 and 28
●Fuse
●Ignition switch
Refer to “PG-2, "
POWER SUPPLY ROUTING" , “POWER SUPPLY ROUTING”.
OK or NG
OK >> GO TO 4
NG >> Repair or replace damaged parts.
4. 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. Refer to wiring diagram — AT — MAIN.
If OK, check harness for short to ground and short to power.
OK or NG
OK >>INSPECTION END
NG >> Repair open circuit or short to ground or short to power in harness or connectors. Continuity should exist.

VEHICLE SPEED SENSOR·A/T (REVOLUTION SENSOR)
AT-355
[ALL]
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Wiring Diagram — AT — VSSA/TECS004TK
TCWA0037E