NISSAN X-TRAIL 2001 Service Repair Manual

ON BOARD DIAGNOSTIC SYSTEM DESCRIPTION
AT-53
[EURO-OBD]
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JUDGEMENT OF SELF-DIAGNOSIS CODE
O/D OFF indicator lamp:
All judgement flickers are the same.
All circuits that can be confirmed by self-diagnosis are OK.1st judgement flicker is longer than others.
Revolution sensor circuit is short-circuited or disconnected.
 Go to DTC P0720 VEHICLE SPEED SENSOR·A/T (REVOLU-
TION SENSOR).
Refer to AT-122
2nd judgement flicker is longer than others.
Vehicle speed sensor circuit is short-circuited or disconnected.
 Go to VEHICLE SPEED SENSOR·MTR.
Refer to AT- 1 9 93rd judgement flicker is longer than others.
Accelerator pedal position (APP) sensor circuit is short-circuited
or disconnected.
 Go to DTC P1705 ACCELEPATOR PEDAL POSITION (APP)
SENSOR.
Refer to AT-180
4th judgement flicker is longer than others.
Shift solenoid valve A circuit is short-circuited or disconnected.
 Go to DTC P0750 SHIFT SOLENOID VALVE A.
Refer to AT- 1 7 05th judgement flicker is longer than others.
Shift solenoid valve B circuit is short-circuited or disconnected.
 Go to DTC P0755 SHIFT SOLENOID VALVE B.
Refer to AT-175
SCIA0694ESCIA0695E
SCIA0696ESCIA0697E
SCIA0698ESCIA0699E

AT-54
[EURO-OBD]
ON BOARD DIAGNOSTIC SYSTEM DESCRIPTION
6th judgement flicker is longer than others.
Overrun clutch solenoid valve circuit is short-circuited or discon-
nected.
 Go to DTC P1760 OVERRUN CLUTCH SOLENOID VALVE.
Refer to AT-1857th judgement flicker is longer than others.
Torque converter clutch solenoid valve circuit is short-circuited or
disconnected.
 Go to DTC P0740 TORQUE CONVERTER CLUTCH SOLE-
NOID VALVE.
Refer to AT- 1 5 8
8th judgement flicker is longer than others.
A/T fluid temperature sensor is disconnected or TCM power
source circuit is damaged.
 Go to DTC BATT/FLUID TEMP SEN A/T FLUID TEMP SEN-
SOR CIRCUIT AND TCM POWER SOURCE.
Refer to AT- 1 9 39th judgement flicker is longer than others.
Engine speed signal circuit is short-circuited or disconnected.
 Go to DTC P0725 ENGINE SPEED SIGNAL.
Refer to AT- 1 2 7
O/D OFF indicator lamp:
SCIA0700ESCIA0701E
SCIA0702ESCIA0703E

ON BOARD DIAGNOSTIC SYSTEM DESCRIPTION
AT-55
[EURO-OBD]
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t1 = 2.5 seconds t2 = 2.0 seconds t3 = 1.0 second t4 = 1.0 second 10th judgement flicker is longer than others.
Line pressure solenoid valve circuit is short-circuited or discon-
nected.
 Go to DTC P0745 LINE PRESSURE SOLENOID VALVE.
Refer to AT- 1 6 3
11th judgement flicker is longer than others.
CAN communication line is damaged.
Go to DTC U1000 CAN COMMNICATION LINE.
Refer to AT-190
Lamp comes off.
PNP switch, overdrive control switch, closed throttle position sig-
nal or wide-open throttle position signal circuit is disconnected or
TCM is damaged.
(Because closed throttle position signal and wide-open throttle
position signal are input via CAN communication line malfunction
may continue after self-diagnosis.)
 Go to TCM Self-diagnosis Does Not Activate
Refer to AT- 2 4 1Flickers as shown below.
Battery power is low.
Battery has been disconnected for a long time.
Battery is connected conversely.
(When reconnecting TCM connectors.—This is not a problem). O/D OFF indicator lamp:
SCIA0704ESCIA0705E
SCIA0706ESAT804H

AT-56
[EURO-OBD]
TROUBLE DIAGNOSIS — INTRODUCTION
TROUBLE DIAGNOSIS — INTRODUCTION
PFP:00000
IntroductionECS004QO
The TCM receives a signal from the vehicle speed sensor, throttle
position sensor or PNP switch and provides shift control or lock-up
control via A/T solenoid valves.
The TCM also communicates with the ECM by means of a signal
sent from sensing elements used with the EURO-OBD related parts
of the A/T system for malfunction-diagnostic purposes. The TCM is
capable of diagnosing malfunctioning parts while the ECM can store
malfunctions in its memory.
Input and output signals must always be correct and stable in the
operation of the A/T system. The A/T system must be in good oper-
ating condition and be free of valve seizure, solenoid valve malfunc-
tion, etc.
It is much more difficult to diagnose a problem that occurs intermit-
tently rather than continuously. Most intermittent problems are
caused by poor electric connections or improper wiring. In this case,
careful checking of suspected circuits may help prevent the replace-
ment of good parts.
A visual check only, may not find the cause of the problems. A road
test with CONSULT-II (or GST) or a circuit tester connected should
be performed. Follow the “Work Flow”. Refer to AT- 6 0 , "
Work Flow" .
Before undertaking actual checks, take a few minutes to talk with a
customer who approaches with a drive ability complaint. The cus-
tomer can supply good information about such problems, especially
intermittent ones. Find out what symptoms are present and under
what conditions they occur. A “Diagnostic Worksheet” like the exam-
ple (AT- 5 7 , "
DIAGNOSTIC WORKSHEET" ) should be used.
Start your diagnosis by looking for “conventional” problems first. This
will help troubleshoot drive ability problems on an electronically con-
trolled engine vehicle.
Also check related Service bulletins for information.
SAT631IA
SAT632I
SEF234G

TROUBLE DIAGNOSIS — INTRODUCTION
AT-57
[EURO-OBD]
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DIAGNOSTIC WORKSHEET
Information from Customer
KEY POINTS
●WHAT..... Vehicle & A/T model
●WHEN..... Date, Frequencies
●WHERE..... Road conditions
●HOW..... Operating conditions, Symptoms
Customer name MR/MS Model & Year VIN
Trans. model Engine Mileage
Incident Date Manuf. Date In Service Date
Frequency❏ Continuous❏ Intermittent ( times a day)
Symptoms❏ Vehicle does not move. (❏ Any position❏ Particular position)
❏ No up-shift (❏ 1st → 2nd❏ 2nd → 3rd❏ 3rd → O/D)
❏ No down-shift (❏ O/D → 3rd❏ 3rd → 2nd❏ 2nd → 1st)
❏ Lockup malfunction
❏ Shift point too high or too low.
❏ Shift shock or slip (❏ N → D❏ Lockup❏ Any drive position)
❏ Noise or vibration
❏ No kick down
❏ No pattern select
❏ Others
()
O/D OFF indicator lamp Blinks for about 8 seconds.
❏ Continuously lit❏ Not lit
Malfunction indicator lamp (MIL)❏ Continuously lit❏ Not lit

AT-58
[EURO-OBD]
TROUBLE DIAGNOSIS — INTRODUCTION
Diagnostic Worksheet
1.❏ Read the Fail-safe and listen to customer complaints.AT-57, "Infor-
mation from
Customer"
2.❏ CHECK A/T FLUIDAT-63, "A/T
Fluid Check"❏ Leakage (Follow specified procedure)
❏ Fluid condition
❏ Fluid level
3.❏ Perform STALL TEST and LINE PRESSURE TEST.AT-64, "
Stall
Te s t",AT- 6 7 ,
"Line Pres-
sure Test"
❏ 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-68, "
Road
Te s t"
4-1. Check before engine is started.AT-70, "1.
CHECK
BEFORE
ENGINE IS
STARTED"
❏ O/D OFF Indicator Lamp Does Not Come On, AT-209, "O/D OFF Indicator Lamp Does Not Come On" .
❏ SELF-DIAGNOSTIC PROCEDURE/DIAGNOSTIC TROUBLE CODE (DTC) CONFIRMATION PRO-
CEDURE. — Mark detected items.
❏ PNP switch, AT-110, "
DTC P0705 PARK/NEUTRAL POSITION (PNP) SWITCH" .
❏ A/T fluid temperature sensor, AT-116, "
DTC P0710 A/T FLUID TEMPERATURE SENSOR CIR-
CUIT" .
❏ Vehicle speed sensor·A/T (Revolution sensor), AT-122, "
DTC P0720 VEHICLE SPEED SEN-
SOR·A/T (REVOLUTION SENSOR)" .
❏ Engine speed signal, AT-127, "
DTC P0725 ENGINE SPEED SIGNAL" .
❏ Torque converter clutch solenoid valve, AT-158, "
DTC P0740 TORQUE CONVERTER CLUTCH
SOLENOID VALVE" .
❏ Line pressure solenoid valve, AT-163, "
DTC P0745 LINE PRESSURE SOLENOID VALVE" .
❏ Shift solenoid valve A, AT-170, "
DTC P0750 SHIFT SOLENOID VALVE A" .
❏ Shift solenoid valve B, AT-175, "
DTC P0755 SHIFT SOLENOID VALVE B" .
❏ Accelerator pedal position (App) sensor, AT- 1 8 0 , "
DTC P1705 ACCELERATOR PEDAL POSITION
(APP) SENSOR" .
❏ Overrun clutch solenoid valve, AT-185, "
DTC P1760 OVERRUN CLUTCH SOLENOID VALVE" .
❏ PNP & overdrive control switches, and throttle position sensor, AT- 2 4 1 , "
TCM Self-diagnosis Does
Not Activate" .
❏ Batt/fluid temp sen (A/T fluid temperature sensor and TCM power source), AT-193, "
DTC BATT/
FLUID TEMP SEN (A/T FLUID TEMP SENSOR CIRCUIT AND TCM POWER SOURCE)" .
❏ Vehicle speed sensor·MTR, AT-199, "
DTC VEHICLE SPEED SENSOR MTR" .
❏ CAN communication line, AT-190, "
DTC U1000 CAN COMMUNICATION LINE" .
❏ 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)" .
❏ Battery
❏ Others
4-2. Check at idleAT-71, "
2.
CHECK AT
IDLE"❏ Engine Cannot Be Started In “P” And “N” Position, AT- 2 11 , "Engine Cannot Be Started In “P” and “N”
Position" .
❏ In “P” Position, Vehicle Moves Forward Or Backward When Pushed, AT-212, "
In “P” Position, Vehicle
Moves Forward Or Backward When Pushed" .
❏ In “N” Position, Vehicle Moves, AT-213, "
In “N” Position, Vehicle Moves" .
❏ Large Shock. “N” → “R” Position, AT-214, "
Large Shock. “N”→“R” Position" .
❏ Vehicle Does Not Creep Backward In “R” Position, AT-215, "
Vehicle Does Not Creep Backward In “R”
Position" .
❏ Vehicle Does Not Creep Forward In “D”, “2” Or “1” Position, AT- 2 1 8 , "
Vehicle Does Not Creep Forward
In “D”,“2” Or “1” Position" .

TROUBLE DIAGNOSIS — INTRODUCTION
AT-59
[EURO-OBD]
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4. 4-3. Cruise testAT- 7 4 , "3.
CRUISE
TEST"
AT- 7 8 ,
"Cruise Test
— Part 1"
Part-1
❏ Vehicle Cannot Be Started From D
1 , AT- 2 2 0 , "Vehicle Cannot Be Started From D1" .
❏ A/T Does Not Shift: D
1→ D2 Or Does Not Kickdown: D4→ D2 , AT-223, "A/T Does Not Shift: D1→
D2 Or Does Not Kickdown: D4→ D2" .
❏ A/T Does Not Shift: D
2→ D3 , AT- 2 2 5 , "A/T Does Not Shift: D2→ D3" .
❏ A/T Does Not Shift: D
3→ D4 , AT- 2 2 7 , "A/T Does Not Shift: D3→ D4" .
❏ A/T Does Not Perform Lock-up, AT-229, "
A/T Does Not Perform Lock-up" .
❏ A/T Does Not Hold Lock-up Condition, AT-230, "
A/T Does Not Hold Lock-up Condition" .
❏ Lock-up Is Not Released, AT-232, "
Lock-up Is Not Released" .
❏ Engine Speed Does Not Return To Idle (Light Braking D
4→ D3 ), AT-233, "Engine Speed Does Not
Return To Idle (Light Braking D4→ D3 )" .
Part-2AT- 8 1 ,
"Cruise Test
— Part 2"❏ Vehicle Does Not Start From D1 , AT- 2 3 4 , "Vehicle Does Not Start From D1" .
❏ A/T Does Not Shift: D
1→ D2 Or Does Not Kickdown: D4→ D2 , AT-223, "A/T Does Not Shift: D1→
D2 Or Does Not Kickdown: D4→ D2" .
❏ A/T Does Not Shift: D
2→ D3 , AT- 2 2 5 , "A/T Does Not Shift: D2→ D3" .
❏ A/T Does Not Shift: D
3→ D4 , AT- 2 2 7 , "A/T Does Not Shift: D3→ D4" .
Part-3AT- 8 3 ,
"Cruise Test
— Part 3"❏ A/T Does Not Shift: D4→ D3 When Overdrive Control Switch “ON” → “OFF”, AT-236, "A/T Does Not
Shift: D4→ D3 , When Overdrive Control Switch “ON”→“OFF”" .
❏ Engine Speed Does Not Return To Idle (Engine Brake In D
3 ), AT-233, "Engine Speed Does Not Return
To Idle (Light Braking D4→ D3 )" .
❏ A/T Does Not Shift: D
3→ 22 , When Selector Lever “D” → “2” Position, AT- 2 3 7 , "A/T Does Not Shift:
D3→ 22 , When Selector Lever “D”→“2” Position" .
❏ Engine Speed Does Not Return To Idle (Engine Brake In 2
2 ), AT- 2 3 3 , "Engine Speed Does Not Return
To Idle (Light Braking D4→ D3 )" .
❏ A/T Does Not Shift: 2
2→ 11 , When Selector Lever “2” → “1” Position, AT-238, "A/T Does Not Shift: 22
→ 11 , When Selector Lever “2”→“1” Position" .
❏ Vehicle Does Not Decelerate By Engine Brake, AT- 2 4 0 , "
Vehicle Does Not Decelerate By Engine
Brake" .
❏ TCM Self-diagnosis Does Not Activate (PNP & Overdrive control switches, and throttle position sensor
circuit checks), AT-241, "
TCM Self-diagnosis Does Not Activate" .
❏ SELF-DIAGNOSTIC PROCEDURE/DIAGNOSTIC TROUBLE CODE (DTC) CONFIRMATION PRO-
CEDURE — Mark detected items.
❏ PNP switch, AT- 11 0 , "
DTC P0705 PARK/NEUTRAL POSITION (PNP) SWITCH" .
❏ A/T fluid temperature sensor, AT- 11 6 , "
DTC P0710 A/T FLUID TEMPERATURE SENSOR CIR-
CUIT" .
❏ Vehicle speed sensor·A/T (Revolution sensor), AT- 1 2 2 , "
DTC P0720 VEHICLE SPEED SEN-
SOR·A/T (REVOLUTION SENSOR)" .
❏ Engine speed signal, AT- 1 2 7 , "
DTC P0725 ENGINE SPEED SIGNAL" .
❏ Torque converter clutch solenoid valve, AT-158, "
DTC P0740 TORQUE CONVERTER CLUTCH
SOLENOID VALVE" .
❏ Line pressure solenoid valve, AT-163, "
DTC P0745 LINE PRESSURE SOLENOID VALVE" .
❏ Shift solenoid valve A, AT- 1 7 0 , "
DTC P0750 SHIFT SOLENOID VALVE A" .
❏ Shift solenoid valve B, AT- 1 7 5 , "
DTC P0755 SHIFT SOLENOID VALVE B" .
❏ Accelerator pedal position (App) sensor, AT-180, "
DTC P1705 ACCELERATOR PEDAL POSITION
(APP) SENSOR" .
❏ Overrun clutch solenoid valve, AT- 1 8 5 , "
DTC P1760 OVERRUN CLUTCH SOLENOID VALVE" .
❏ PNP & overdrive control switches, and throttle position sensor, AT-241, "
TCM Self-diagnosis Does
Not Activate" .
❏ A/T fluid temperature sensor and TCM power source, AT-193, "
DTC BATT/FLUID TEMP SEN (A/T
FLUID TEMP SENSOR CIRCUIT AND TCM POWER SOURCE)" .
❏ Vehicle speed sensor·MTR, AT-199, "
DTC VEHICLE SPEED SENSOR MTR" .
❏ CAN communication line, AT- 1 9 0 , "
DTC U1000 CAN COMMUNICATION LINE" .
❏ Control unit (RAM), control unit (ROM), AT-203, "
DTC CONTROL UNIT (RAM), CONTROL UNIT
(ROM)" .
❏ Control unit (EEP ROM), AT-205, "
DTC CONTROL UNIT(EEPROM)" .
❏ Battery
❏ Others

AT-60
[EURO-OBD]
TROUBLE DIAGNOSIS — INTRODUCTION
Work Flow
ECS004QP
HOW TO PERFORM TROUBLE DIAGNOSES FOR QUICK AND ACCURATE REPAIR
A good understanding of the malfunction conditions can make troubleshooting faster and more accurate. In
general, each customer feels differently about a problem. It is important to fully understand the symptoms or
conditions for a customer complaint.
Make good use of the two sheets provided, “INFORMATION FROM CUSTOMER” (AT- 5 7 , "
Information from
Customer" ) and “DIAGNOSTIC WORKSHEET” (AT- 5 8 , "Diagnostic Worksheet" ), to perform the best trouble-
shooting possible.
5.❏ For self-diagnosis NG items, inspect each component. Repair or replace the damaged parts.AT- 5 0 , "Diag-
nostic Proce-
dure Without
CONSULT-II"
6.❏ Perform all ROAD TEST and re-mark required procedures.AT-68, "Road
Te s t"
7.❏ Perform DTC CONFIRMATION PROCEDURE for following MIL indicating items and check out NG items.
Refer to “EC-XX”, “Emission-related Diagnostic Information”.EC section
❏ DTC (P0731) A/T 1st gear function, AT-131, "
DTC P0731 A/T 1ST GEAR FUNCTION" .
❏ DTC (P0732) A/T 2nd gear function, AT-137, "
DTC P0732 A/T 2ND GEAR FUNCTION" .
❏ DTC (P0733) A/T 3rd gear function, AT-143, "
DTC P0733 A/T 3RD GEAR FUNCTION" .
❏ DTC (P0734) A/T 4th gear function, AT-149, "
DTC P0734 A/T 4TH GEAR FUNCTION" .
8.❏ Perform the Diagnostic Procedures for all remaining items marked NG. Repair or replace the damaged parts.
Refer to the Symptom Chart when you perform the procedures. (The chart also shows some other possible
symptoms and the component inspection orders.)AT- 8 6 ,
"Symptom
Chart"
9.❏ Erase DTC from TCM and ECM memories.AT-39, "HOW
TO ERASE
DTC"

TROUBLE DIAGNOSIS — INTRODUCTION
AT-61
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WORK FLOW CHART
SAT183K

AT-62
[EURO-OBD]
TROUBLE DIAGNOSIS — INTRODUCTION
*1:AT-57, "Information from Customer"*2:AT-58, "Diagnostic Worksheet"*3:AT- 7 , "Service Notice or Pre-
cautions"
*4:AT-63, "A/T Fluid Check"*5:AT-64, "Sta ll Tes t" and AT-67, "Line Pressure
Te s t"
*6:AT-68, "Road Test"
*7:AT-41, "CONSULT-II"*8:AT-37, "ON BOARD DIAGNOSTIC SYSTEM
DESCRIPTION"
*9:AT-50, "Diagnostic Procedure
Without CONSULT-II"
*10:AT- 11 0 , "DTC P0705 PARK/NEU-
TRAL POSITION (PNP) SWITCH"
*11:AT-199, "DTC VEHICLE SPEED SENSOR
MTR" and AT-203, "DTC CONTROL UNIT
(RAM), CONTROL UNIT (ROM)" t o AT-205,
"DTC CONTROL UNIT(EEPROM)"
*12:AT-209, "O/D OFF Indicator
Lamp Does Not Come On"
*13:AT-240, "Vehicle Does Not Deceler-
ate By Engine Brake"
*14:AT-86, "Symptom Chart"*15:AT-39, "HOW TO ERASE DTC"
*16:AT- 111 , "DIAGNOSTIC TROUBLE
CODE (DTC) CONFIRMATION
PROCEDURE"
*17:AT-199, "DTC VEHICLE SPEED SENSOR
MTR" and AT-203, "DTC CONTROL UNIT
(RAM), CONTROL UNIT (ROM)" t o AT-205,
"DTC CONTROL UNIT(EEPROM)"
*18: EC section