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![NISSAN X-TRAIL 2003 Service Repair Manual ON BOARD DIAGNOSTIC SYSTEM DESCRIPTION
AT-245
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HOW TO ERASE SELF-DIAGNOSTIC RESULTS (WITH CONSULT-II)
1. If the ignition switch stays ON after repair work, NISSAN X-TRAIL 2003 Service Repair Manual ON BOARD DIAGNOSTIC SYSTEM DESCRIPTION
AT-245
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HOW TO ERASE SELF-DIAGNOSTIC RESULTS (WITH CONSULT-II)
1. If the ignition switch stays ON after repair work,](/manual-img/5/57404/w960_57404-2280.png)
ON BOARD DIAGNOSTIC SYSTEM DESCRIPTION
AT-245
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HOW TO ERASE SELF-DIAGNOSTIC RESULTS (WITH CONSULT-II)
1. If the ignition switch stays ON after repair work, be sure to turn
ignition switch OFF once. Wait for at least 3 seconds and then
turn it “ON” again.
2. Turn CONSULT-II “ON”, and touch “A/T”.
3. Touch “SELF-DIAG RESULTS”.
THROTTLE POSI
[/8]—XA specific value used for control is displayed if fail-
safe is activated due to error.
BRAKE SW
[ON/OFF]X—
LINE PRES DTY
[%]—X
TCC S/V DUTY
[%]—X
SHIFT S/V A
[ON/OFF]—XControl value of solenoid is displayed even if solenoid
circuit is disconnected.
The OFF signal is displayed if solenoid circuit is
shorted. SHIFT S/V B
[ON/OFF]—X
OVERRUN/C S/V
[ON/OFF]—X
SELF-D DP LMP
[ON/OFF]—X
Voltage [V] — —
Frequency [Hz] — —
DUTY-HI [%] — —
DUTY-LOW [%] — —
PLS WIDTH-HI [msec] — —
PLS WIDTH-LOW [msec] — —Monitor item (Unit)SELECT MONITOR ITEM
Remarks
TCM INPUT
SIGNALSMAIN SIG-
NALSSELEC-
TION FROM
MENU
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AT-246
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ON BOARD DIAGNOSTIC SYSTEM DESCRIPTION
4. Touch “ERASE”. (The self-diagnostic results will be erased.)
Diagnostic Procedure Without CONSULT-IIECS004NX
SELF-DIAGNOSTIC PROCEDURE (WITHOUT CONSULT-II)
1. CHECK O/D OFF INDICATOR LAMP
1. Selector lever in P position.
2. Turn ignition switch to OFF.
3. Wait 5 seconds.
4. Set overdrive control switch to ON.
5. Turn ignition switch to ON. (Do not start engine.)
Does O/D OFF indicator lamp come on for about 2 seconds?
YES >> GO TO 2.
NO >> GO TO AT- 2 9 1 , "
O/D OFF Indicator Lamp Does Not
Come On" .
2. JUDGEMENT PROCEDURE STEP 1
1. Turn ignition switch to OFF.
2. Move selector lever to D.
3. Set overdrive control switch to OFF.
4. Turn ignition switch to ON. (Do not start engine.)
Wait more than 2 seconds after turning ignition switch ON.
>> GO TO 3.
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ON BOARD DIAGNOSTIC SYSTEM DESCRIPTION
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3. JUDGEMENT PROCEDURE STEP 2
1. Move selector lever to 2 position.
2. Set overdrive control switch to ON.
>> GO TO 4.
4. JUDGEMENT PROCEDURE STEP 3
1. Move selector lever to 1 position.
2. Set overdrive control switch to OFF.
>> GO TO 5.
5. JUDGEMENT PROCEDURE STEP 4
1. Depress accelerator pedal fully and release it.
>> GO TO 6.
6. CHECK SELF-DIAGNOSIS CODE
Check O/D OFF indicator lamp. Refer to AT- 2 4 8 , "
JUDGEMENT OF
SELF-DIAGNOSIS CODE" .
>>DIAGNOSIS END
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![NISSAN X-TRAIL 2003 Service Repair Manual AT-248
[EXC.F/EURO-OBD]
ON BOARD DIAGNOSTIC SYSTEM DESCRIPTION
JUDGEMENT OF SELF-DIAGNOSIS CODE
O/D OFF indicator lamp:
All judgement flickers are the same.
All circuits that can be confirmed by sel NISSAN X-TRAIL 2003 Service Repair Manual AT-248
[EXC.F/EURO-OBD]
ON BOARD DIAGNOSTIC SYSTEM DESCRIPTION
JUDGEMENT OF SELF-DIAGNOSIS CODE
O/D OFF indicator lamp:
All judgement flickers are the same.
All circuits that can be confirmed by sel](/manual-img/5/57404/w960_57404-2283.png)
AT-248
[EXC.F/EURO-OBD]
ON BOARD DIAGNOSTIC SYSTEM DESCRIPTION
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 VEHICLE SPEED SENSOR·A/T (REVOLUTION SEN-
SOR).
Refer to AT- 3 3 2
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-3393rd judgement flicker is longer than others.
Accelerator pedal position (APP) sensor circuit is short-circuited
or disconnected.
Go to ACCELERATOR PEDAL POSITION (APP) SENSOR.
Refer to AT- 3 4 5
4th judgement flicker is longer than others.
Shift solenoid valve A circuit is short-circuited or disconnected.
Go to SHIFT SOLENOID VALVE A.
Refer to AT-3505th judgement flicker is longer than others.
Shift solenoid valve B circuit is short-circuited or disconnected.
Go to SHIFT SOLENOID VALVE B.
Refer to AT- 3 5 6
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ON BOARD DIAGNOSTIC SYSTEM DESCRIPTION
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6th judgement flicker is longer than others.
Overrun clutch solenoid valve circuit is short-circuited or discon-
nected.
Go to OVERRUN CLUTCH SOLENOID VALVE.
Refer to AT- 3 6 27th judgement flicker is longer than others.
Torque converter clutch solenoid valve circuit is short-circuited or
disconnected.
Go to TORQUE CONVERTER CLUTCH SOLENOID VALVE.
Refer to AT-368
8th judgement flicker is longer than others.
A/T fluid temperature sensor is disconnected or TCM power
source circuit is damaged.
Go to BATT/FLUID TEMP SEN(A/T FLUID TEMP SENSOR
CIRCUIT AND TCM POWER SOURCE).
Refer to AT- 3 7 49th judgement flicker is longer than others.
Engine speed signal circuit is short-circuited or disconnected.
Go to ENGINE SPEED SIGNAL.
Refer to AT-382
O/D OFF indicator lamp:
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![NISSAN X-TRAIL 2003 Service Repair Manual AT-250
[EXC.F/EURO-OBD]
ON BOARD DIAGNOSTIC SYSTEM DESCRIPTION
t1 = 2.5 seconds t2 = 2.0 seconds t3 = 1.0 second t4 = 1.0 second
HOW TO ERASE SELF-DIAGNOSTIC RESULTS (WITHOUT CONSULT-II)
1. If t NISSAN X-TRAIL 2003 Service Repair Manual AT-250
[EXC.F/EURO-OBD]
ON BOARD DIAGNOSTIC SYSTEM DESCRIPTION
t1 = 2.5 seconds t2 = 2.0 seconds t3 = 1.0 second t4 = 1.0 second
HOW TO ERASE SELF-DIAGNOSTIC RESULTS (WITHOUT CONSULT-II)
1. If t](/manual-img/5/57404/w960_57404-2285.png)
AT-250
[EXC.F/EURO-OBD]
ON BOARD DIAGNOSTIC SYSTEM DESCRIPTION
t1 = 2.5 seconds t2 = 2.0 seconds t3 = 1.0 second t4 = 1.0 second
HOW TO ERASE SELF-DIAGNOSTIC RESULTS (WITHOUT CONSULT-II)
1. If the ignition switch stays ON after repair work, be sure to turn ignition switch OFF once. Wait for at least
3 seconds and then turn it ON again.
2. Perform “SELF-DIAGNOSTIC PROCEDURE (Without CONSULT-II)”. Refer to AT- 2 4 6 , "
Diagnostic Proce-
dure Without CONSULT-II" .
3. Turn ignition switch “OFF”. (The self-diagnostic results will be erased.)
10th judgement flicker is longer than others.
Line pressure solenoid valve circuit is short-circuited or discon-
nected.
Go to LINE PRESSURE SOLENOID VALVE.
Refer to AT-38711th judgement flicker is longer than others.
CAN communication line is damaged.
Go to CAN COMMUNICATION LINE.
Refer to AT- 3 2 9
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-324 Flickers 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 a problem.) O/D OFF indicator lamp:
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![NISSAN X-TRAIL 2003 Service Repair Manual TROUBLE DIAGNOSIS — INTRODUCTION
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TROUBLE DIAGNOSIS — INTRODUCTIONPFP:00000
IntroductionECS004TF
The TCM receives a signal from the vehicle speed NISSAN X-TRAIL 2003 Service Repair Manual TROUBLE DIAGNOSIS — INTRODUCTION
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TROUBLE DIAGNOSIS — INTRODUCTIONPFP:00000
IntroductionECS004TF
The TCM receives a signal from the vehicle speed](/manual-img/5/57404/w960_57404-2286.png)
TROUBLE DIAGNOSIS — INTRODUCTION
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TROUBLE DIAGNOSIS — INTRODUCTIONPFP:00000
IntroductionECS004TF
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.
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 a circuit tester connected should be per-
formed. Follow the “Work Flow”. Refer to AT- 6 1
.
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 8
) 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.
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AT-252
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TROUBLE DIAGNOSIS — INTRODUCTION
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