2001 NISSAN X-TRAIL clutch

TROUBLE DIAGNOSIS — GENERAL DESCRIPTION
AT-105
[EURO-OBD]
D
E
F
G
H
I
J
K
L
MA
B
AT
Lock-up point is extremely high or
low.
AT-229, "
A/T Does Not Perform
Lock-up"
ON vehicle1. Accelerator pedal position (APP) sensorAT-180, "
DTC P1705
ACCELERATOR PEDAL
POSITION (APP) SEN-
SOR"
2. Vehicle speed sensor·A/T (Revolution
sensor) and vehicle speed sensor·MTRAT-122, "
DTC P0720 VEHI-
CLE SPEED SENSOR·A/T
(REVOLUTION SEN-
SOR)",AT-199, "DTC
VEHICLE SPEED SEN-
SOR MTR"
3. Torque converter clutch solenoid valveAT-158, "
DTC P0740
TORQUE CONVERTER
CLUTCH SOLENOID
VA LV E"
4. Control valve assemblyAT-414, "
Control Valve
Assembly and Accumula-
tors"
A/T does not shift to “D4 ” when driv-
ing with overdrive control switch
“ON”.ON vehicle1. Accelerator pedal position (APP) sensorAT-180, "
DTC P1705
ACCELERATOR PEDAL
POSITION (APP) SEN-
SOR"
2. PNP switchAT-110, "
DTC P0705
PARK/NEUTRAL POSI-
TION (PNP) SWITCH"
3. Overdrive control switchAT-241, "TCM Self-diagno-
sis Does Not Activate"
4. Vehicle speed sensor·A/T (Revolution
sensor) and vehicle speed sensor·MTRAT-122, "
DTC P0720 VEHI-
CLE SPEED SENSOR·A/T
(REVOLUTION SEN-
SOR)",AT-199, "DTC
VEHICLE SPEED SEN-
SOR MTR"
5. Shift solenoid valve AAT-170, "
DTC P0750
SHIFT SOLENOID VALVE
A"
6. Overrun clutch solenoid valveAT-185, "
DTC P1760
OVERRUN CLUTCH
SOLENOID VALVE"
7. Control valve assemblyAT-414, "
Control Valve
Assembly and Accumula-
tors"
8. A/T fluid temperature sensorAT-193, "
DTC BATT/FLUID
TEMP SEN (A/T FLUID
TEMP SENSOR CIRCUIT
AND TCM POWER
SOURCE)"
9. Line pressure testAT-67, "Line Pressure Test"
A/T does not shift to “D4 ” when driv-
ing with overdrive control switch
“ON”.OFF vehicle10. Brake bandAT-488, "Band Servo Pis-
ton Assembly"
11. Overrun clutchAT-471, "Forward and
Overrun Clutches"
Symptom Condition Diagnostic ItemReference Page
EURO-OBD

AT-106
[EURO-OBD]
TROUBLE DIAGNOSIS — GENERAL DESCRIPTION
TCM Terminals and Reference Value
ECS004QV
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.)
Engine is stopped at “R”, “D”, “2”
and “1” positions.ON vehicle1. Fluid levelAT- 6 3 , "
FLUID LEVEL
CHECK"
2. Torque converter clutch solenoid valveAT-158, "
DTC P0740
TORQUE CONVERTER
CLUTCH SOLENOID
VA LV E"
3. Shift solenoid valve AAT-170, "
DTC P0750
SHIFT SOLENOID VALVE
A"
4. Shift solenoid valve BAT-175, "
DTC P0755
SHIFT SOLENOID VALVE
B"
5. Control valve assemblyAT-414, "
Control Valve
Assembly and Accumula-
tors"
Symptom Condition Diagnostic ItemReference Page
EURO-OBD
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

TROUBLE DIAGNOSIS — GENERAL DESCRIPTION
AT-107
[EURO-OBD]
D
E
F
G
H
I
J
K
L
MA
B
AT
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
11 L / WShift solenoid
valve AWhen shift solenoid valve A oper-
ates.
(When driving in “D
1 ” 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 Termi-
nal No.Wire color Item ConditionJudgementstan-
dard(Approx.)

DTC P0731 A/T 1ST GEAR FUNCTION
AT-131
[EURO-OBD]
D
E
F
G
H
I
J
K
L
MA
B
AT
DTC P0731 A/T 1ST GEAR FUNCTIONPFP:31940
DescriptionECS004RA
●This malfunction will not be detected while the O/D OFF indicator lamp is indicating another self-diagnosis
malfunction.
●This malfunction is detected when the A/T does not shift into first gear position as instructed by the TCM.
This is not caused by electrical malfunction (circuits open or shorted) but by mechanical malfunction such
as control valve sticking, improper solenoid valve operation, etc.
TCM TERMINALS AND REFERENCE VALUE
Remarks: Specification data are reference values.
ON BOARD DIAGNOSTIC LOGIC
This diagnosis monitors actual gear position by checking the torque converter slip ratio calculated by TCM as
follows:
Torque converter slip ratio = A x C/B
A: Output shaft revolution signal from revolution sensor
B: Engine speed signal from ECM
C: Gear ratio determined as gear position which TCM supposes
If the actual gear position is higher than the position (1st) supposed by TCM, the slip ratio will be more than
normal. In case the ratio exceeds the specified value, TCM judges this diagnosis malfunction.
This malfunction will be caused when either shift solenoid valve A is stuck open or shift solenoid valve B is
stuck open.
*: P0731 is detected.Gear position 1 2 3 4
Shift solenoid valve A ON (Closed) OFF (Open) OFF (Open) ON (Closed)
Shift solenoid valve B ON (Closed) ON (Closed) OFF (Open) OFF (Open)
Te r m i -
nal No.Wire color Item ConditionJudgement stan-
dard
(Approx.)
11 L / WShift solenoid
valve AWhen shift solenoid valve A oper-
ates.
(When driving in “D
1 ” 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
Gear position supposed by TCM 1 2 3 4
In case of gear position with no malfunctions 1 2 3 4
In case of gear position with shift solenoid valve A stuck open2* 2 3 3
In case of gear position with shift solenoid valve B stuck open4* 3 3 4
Diagnostic trouble code Malfunction is detected when... Check items (Possible cause)
: A/T 1ST GR FNCTN
A/T cannot be shifted to the 1st gear posi-
tion even if electrical circuit is good.
●Shift solenoid valve A
●Shift solenoid valve B
●Each clutch
●Hydraulic control circuit : P0731

DTC P0731 A/T 1ST GEAR FUNCTION
AT-135
[EURO-OBD]
D
E
F
G
H
I
J
K
L
MA
B
AT
Diagnostic ProcedureECS004RC
1.CHECK SHIFT SOLENOID VALVE
1. Remove control valve assembly. Refer to AT- 4 1 4 , "
Control Valve Assembly and Accumulators"
2. Check shift solenoid valve operation.
●Shift solenoid valve A
●Shift solenoid valve B
Refer to AT-136, "
Component Inspection" .
OK or NG
OK >> GO TO 2.
NG >> Repair or replace shift solenoid valve assembly.
2.CHECK CONTROL VALVE
1. Disassemble control valve assembly. Refer to AT-448, "
Control Valve Assembly" .
2. Check to ensure that:
●Valve, sleeve and plug slide along valve bore under their own weight.
●Valve, sleeve and plug are free from burrs, dents and scratches.
●Control valve springs are free from damage, deformation and fatigue.
●Hydraulic line is free from obstacles.
OK or NG
OK >> GO TO 3.
NG >> Repair control valve assembly.
3.CHECK DTC
Perform Diagnostic Trouble Code (DTC) confirmation procedure. Refer to AT- 1 3 2 , "
DIAGNOSTIC TROUBLE
CODE (DTC) CONFIRMATION PROCEDURE" .
OK or NG
OK >>INSPECTION END
NG >> Check transaxle inner parts (clutch, brake, etc.).
SCIA0755E
SAT367H

DTC P0732 A/T 2ND GEAR FUNCTION
AT-137
[EURO-OBD]
D
E
F
G
H
I
J
K
L
MA
B
AT
DTC P0732 A/T 2ND GEAR FUNCTIONPFP:31940
DescriptionECS004RE
●This malfunction will not be detected while the O/D OFF indicator lamp is indicating another self-diagnosis
malfunction.
●This malfunction is detected when the A/T does not shift into second gear position as instructed by the
TCM. This is not caused by electrical malfunction (circuits open or shorted) but by mechanical malfunction
such as control valve sticking, improper solenoid valve operation, etc.
TCM TERMINALS AND REFERENCE VALUE
Remarks: Specification data are reference values.
ON BOARD DIAGNOSTIC LOGIC
This diagnosis monitors actual gear position by checking the torque converter slip ratio calculated by TCM as
follows:
Torque converter slip ratio = A x C/B
A: Output shaft revolution signal from revolution sensor
B: Engine speed signal from ECM
C: Gear ratio determined as gear position which TCM supposes
If the actual gear position is higher than the position (2nd) supposed by TCM, the slip ratio will be more than
normal. In case the ratio exceeds the specified value, TCM judges this diagnosis malfunction.
This malfunction will be caused when shift solenoid valve B is stuck open.
*: P0732 is detected.Gear position 1 2 3 4
Shift solenoid valve A ON (Closed) OFF (Open) OFF (Open) ON (Closed)
Shift solenoid valve B ON (Closed) ON (Closed) OFF (Open) OFF (Open)
Te r m i -
nal No.Wire color Item ConditionJudgement stan-
dard
(Approx.)
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
Gear position supposed by TCM 1 2 3 4
In case of gear position with no malfunctions 1 2 3 4
In case of gear position with shift solenoid valve B stuck open43*3 4
Diagnostic trouble code Malfunction is detected when... Check items (Possible cause)
: A/T 2ND GR FNCTN
A/T cannot be shifted to the 2nd gear
position even if electrical circuit is good.
●Shift solenoid valve B
●Each clutch
●Hydraulic control circuit : P0732

DTC P0732 A/T 2ND GEAR FUNCTION
AT-141
[EURO-OBD]
D
E
F
G
H
I
J
K
L
MA
B
AT
Diagnostic ProcedureECS004RG
1.CHECK SHIFT SOLENOID VALVE
1. Remove control valve assembly. Refer to AT- 4 1 4 , "
REMOVAL" .
2. Check shift solenoid valve operation.
●Shift solenoid valve B
Refer to AT-142, "
Component Inspection" .
OK or NG
OK >> GO TO 2.
NG >> Repair or replace shift solenoid valve assembly.
2.CHECK CONTROL VALVE
1. Disassemble control valve assembly. Refer to AT-448, "
Control Valve Assembly" .
2. Check to ensure that:
●Valve, sleeve and plug slide along valve bore under their own weight.
●Valve, sleeve and plug are free from burrs, dents and scratches.
●Control valve springs are free from damage, deformation and fatigue.
●Hydraulic line is free from obstacles.
OK or NG
OK >> GO TO 3.
NG >> Repair control valve assembly.
3.CHECK DTC
Perform Diagnostic Trouble Code (DTC) confirmation procedure. Refer to AT- 1 3 8 , "
DIAGNOSTIC TROUBLE
CODE (DTC) CONFIRMATION PROCEDURE" .
OK or NG
OK >>INSPECTION END
NG >> Check transaxle inner parts (clutch, brake, etc.).
SCIA0758E
SAT367H

DTC P0733 A/T 3RD GEAR FUNCTION
AT-143
[EURO-OBD]
D
E
F
G
H
I
J
K
L
MA
B
AT
DTC P0733 A/T 3RD GEAR FUNCTIONPFP:31940
DescriptionECS004RI
●This malfunction will not be detected while the O/D OFF indicator lamp is indicating another self-diagnosis
malfunction.
●This malfunction is detected when the A/T does not shift into third gear position as instructed by the TCM.
This is not caused by electrical malfunction (circuits open or shorted) but by mechanical malfunction such
as control valve sticking, improper solenoid valve operation, malfunctioning servo piston or brake band,
etc.
TCM TERMINALS AND REFERENCE VALUE
Remarks: Specification data are reference values.
ON BOARD DIAGNOSTIC LOGIC
This diagnosis monitors actual gear position by checking the torque converter slip ratio calculated by TCM as
follows:
Torque converter slip ratio = A x C/B
A: Output shaft revolution signal from revolution sensor
B: Engine speed signal from ECM
C: Gear ratio determined as gear position which TCM supposes
If the actual gear position is higher than the position (3rd) supposed by TCM, the slip ratio will be more than
normal. In case the ratio exceeds the specified value, TCM judges this diagnosis malfunction.
This malfunction will be caused when shift solenoid valve A is stuck closed.
*: P0733 is detected.Gear position 1 2 3 4
Shift solenoid valve A ON (Closed) OFF (Open) OFF (Open) ON (Closed)
Shift solenoid valve B ON (Closed) ON (Closed) OFF (Open) OFF (Open)
Te r m i -
nal No.Wire color Item ConditionJudgement stan-
dard
(Approx.)
11 L / WShift solenoid
valve AWhen shift solenoid valve A oper-
ates.
(When driving in “D
1 ” or “D4 ”.)Battery voltage
When shift solenoid valve A does not
operate.
(When driving in “D
2 ” or “D3 ”.)0V
Gear position supposed by TCM 1 2 3 4
In case of gear position with no malfunctions 1 2 3 4
In case of gear position with shift solenoid valve A stuck closed 1 1 4* 4
Diagnostic trouble code Malfunction is detected when... Check items (Possible cause)
: A/T 3RD GR FNCTN
A/T cannot be shifted to the 3rd gear posi-
tion even if electrical circuit is good.
●Shift solenoid valve A
●Each clutch
●Hydraulic control circuit : P0733