2001 NISSAN X-TRAIL At-203

TROUBLE DIAGNOSIS — INTRODUCTION
AT-59
[EURO-OBD]
D
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F
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B
AT
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-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

DTC CONTROL UNIT (RAM), CONTROL UNIT (ROM)
AT-203
[EURO-OBD]
D
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AT
DTC CONTROL UNIT (RAM), CONTROL UNIT (ROM)PFP:31036
DescriptionECS004SP
The TCM consists of a microcomputer and connectors for signal
input and output and for power supply. The unit controls the A/T.
ON BOARD DIAGNOSIS LOGIC
DIAGNOSTIC TROUBLE CODE (DTC) CONFIRMATION PROCEDURE
NOTE:
If “DIAGNOSTIC TROUBLE CODE CONFIRMATION PROCE-
DURE” has been previously conducted, always turn ignition
switch “OFF” and wait at least 5 seconds before conducting the
next test.
With CONSULT-II
1. Turn ignition switch “ON” and select “DATA MONITOR” mode for
A/T with CONSULT-II.
2. Start engine.
3. Run engine for at least 2 seconds at idle speed.
Diagnostic ProcedureECS004SQ
1.INSPECTION START (WITH CONSULT-II)
With CONSULT-II
1. Turn ignition switch “ON” and select “SELF DIAGNOSIS” mode for A/T with CONSULT-II.
2. Touch “ERASE”.
>> GO TO 2.
SAT574J
Diagnostic Trouble Code No. Malfunction is detected when.... Check Item (Possible Cause)
: CONTROL UNIT (RAM),
CONTROL UNIT (ROM)TCM memory (RAM) or (ROM) is malfunc-
tioning.
●TCM
SAT014K
SAT971J

TROUBLE DIAGNOSIS — INTRODUCTION
AT-261
[EXC.F/EURO-OBD]
D
E
F
G
H
I
J
K
L
MA
B
AT
4. 4-3. Cruise testAT- 2 7 5 , "3.
CRUISE
TEST",
AT- 2 7 9 ,
"Cruise Test
— Part 1"
Part-1
❏ Vehicle Cannot Be Started From D
1 , AT- 3 2 3 .
❏ A/T Does Not Shift: D
1→ D2 Or Does Not Kickdown: D4→ D2 , AT- 3 2 6 .
❏ A/T Does Not Shift: D
2→ D3 , AT-328 .
❏ A/T Does Not Shift: D
3→ D4 , AT-330 .
❏ A/T Does Not Perform Lock-up,AT- 3 3 2
.
❏ A/T Does Not Hold Lock-up Condition, AT-333
.
❏ Lock-up Is Not Released, AT-335
.
❏ Engine Speed Does Not Return To Idle (Light Braking D
4→ D3 ), AT- 3 3 6 .
Part-2AT- 2 8 2 ,
"Cruise Test
— Part 2"❏ Vehicle Does Not Start From D1 , AT-338 .
❏ A/T Does Not Shift: D
1→ D2 Or Does Not Kickdown: D4→ D2 , AT- 3 2 6 .
❏ A/T Does Not Shift: D
2→ D3 , AT-328 .
❏ A/T Does Not Shift: D
3→ D4 , AT-330 .
Part-3AT- 2 8 4 ,
"Cruise Test
— Part 3"❏ A/T Does Not Shift: D4→ D3 When Overdrive Control Switch “ON” → “OFF”, AT- 3 3 9 .
❏ Engine Speed Does Not Return To Idle (Engine Brake In D
3 ), AT-336 .
❏ A/T Does Not Shift: D
3→ 22 , When Selector Lever “D” → “2” Position, AT- 3 4 0 .
❏ Engine Speed Does Not Return To Idle (Engine Brake In 2
2 ),AT- 3 3 6 .
❏ A/T Does Not Shift: 2
2→ 11 , When Selector Lever “2” → “1” Position, AT- 3 4 1 .
❏ Vehicle Does Not Decelerate By Engine Brake, AT-343
.
❏ TCM Self-diagnosis Does Not Activate (PNP & Overdrive Control Switches, and throttle position sensor
Circuit Checks), AT- 3 4 4
.
❏ SELF-DIAGNOSTIC PROCEDURE — Mark detected items.
❏ Vehicle speed sensor·A/T (Revolution sensor), AT- 3 5 3
.
❏ Vehicle speed sensor·MTR, AT-358
.
❏ Accelerator pedal position (APP) sensor, AT-362
.
❏ Shift solenoid valve A, AT- 3 6 7
.
❏ Shift solenoid valve B, AT- 3 7 2
.
❏ Overrun clutch solenoid valve, AT- 3 7 7
.
❏ Torque converter clutch solenoid valve, AT-381
.
❏ Batt/fluid temp sen (A/T fluid temperature sensor and TCM power source), AT- 3 8 6
.
❏ Engine speed signal, AT- 3 9 2
.
❏ Line pressure solenoid valve, AT-396
.
❏ CAN communication line, AT- 4 0 3
.
❏ 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)" .
❏ PNP & overdrive control switches, and throttle position sensor, AT- 3 4 4
.
❏ Battery
❏ Others
5.❏ For self-diagnosis NG items, inspect each component. Repair or replace the damaged parts.AT- 2 5 3 ,
"SELF-DIAG-
NOSTIC
PROCE-
DURE
(WITHOUT
CONSULT-
II)"
6.❏ Perform all ROAD TEST and re-mark required procedures.AT- 2 6 9 ,
"Road Test"