2001 NISSAN X-TRAIL brake sensor

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

AT-68
[EURO-OBD]
TROUBLE DIAGNOSIS — BASIC INSPECTION
5. Start engine and measure line pressure at idle and stall speed.
●When measuring line pressure at stall speed, follow the
stall test procedure.
Line pressure: Refer to AT- 5 2 1 , "
SERVICE DATA AND SPECIFI-
CATIONS (SDS)" .
JUDGEMENT OF LINE PRESSURE TEST
Road TestECS004QT
DESCRIPTION
●The purpose of the test is to determine overall performance of A/
T and analyze causes of problems.
●The road test consists of the following three parts:
1. Check before engine is started
2. Check at idle
SAT493G
Judgement Suspected parts
At idleLine pressure is low in all positions.
●Oil pump wear
●Control piston damage
●Pressure regulator valve or plug sticking
●Spring for pressure regulator valve damaged
●Fluid pressure leakage between oil strainer and pressure regulator valve
●Clogged strainer
Line pressure is low in particular posi-
tion.
●Fluid pressure leakage between manual valve and particular clutch
●For example, line pressure is:
− Low in “R” and “1” positions, but
− Normal in “D” and “2” positions.
Therefore, fluid leakage exists at or around low and reverse brake circuit.
Refer to AT- 1 9 , "
CLUTCH AND BAND CHART" .
Line pressure is high.
●Maladjustment of throttle position sensor
●A/T fluid temperature sensor damaged
●Line pressure solenoid valve sticking
●Short circuit of line pressure solenoid valve circuit
●Pressure modifier valve sticking
●Pressure regulator valve or plug sticking
●Open in dropping resistor circuit
At stall
speedLine pressure is low.
●Maladjustment of throttle position sensor
●Line pressure solenoid valve sticking
●Short circuit of line pressure solenoid valve circuit
●Pressure regulator valve or plug sticking
●Pressure modifier valve sticking
●Pilot valve sticking
SAT786A

TROUBLE DIAGNOSIS — GENERAL DESCRIPTION
AT-89
[EURO-OBD]
D
E
F
G
H
I
J
K
L
MA
B
AT
Vehicle will not run in “D”, “1”, “2”
positions (but runs in “R” position).
Clutch slips. Very poor acceleration.
AT-218, "
Vehicle Does Not Creep
Forward In “D”,“2” Or “1” Position"
OFF vehicle7. Reverse clutchAT-463, "
Reverse Clutch"
8. High clutchAT-466, "High Clutch"
9. Forward clutchAT-471, "Forward and
Overrun Clutches"
10. Forward one-way clutchAT-421, "OVERHAUL"
11. Low one-way clutchAT-421, "
OVERHAUL",AT-
425, "Locations of Adjust-
ing Shims, Needle Bear-
ings, Thrust Washers and
Snap Rings"
Clutches or brakes slip somewhat in
starting.ON vehicle1. Fluid levelAT-63, "
FLUID LEVEL
CHECK"
2. Control cable adjustmentAT-416, "Control Cable
Adjustment"
3. Accelerator pedal position (APP) sensorAT-180, "
DTC P1705
ACCELERATOR PEDAL
POSITION (APP) SEN-
SOR"
4. Line pressure testAT-67, "Line Pressure Test"
5. Line pressure solenoid valveAT-163, "
DTC P0745 LINE
PRESSURE SOLENOID
VA LV E"
6. Control valve assemblyAT-414, "
Control Valve
Assembly and Accumula-
tors"
7. Accumulator N-DAT-414, "
Control Valve
Assembly and Accumula-
tors"
8. Shift solenoid valve AAT-170, "
DTC P0750
SHIFT SOLENOID VALVE
A"
9. Shift solenoid valve BAT-175, "
DTC P0755
SHIFT SOLENOID VALVE
B"
10. Overrun clutch solenoid valveAT-185, "
DTC P1760
OVERRUN CLUTCH
SOLENOID VALVE"
11. Torque converter clutch solenoid valveAT-158, "
DTC P0740
TORQUE CONVERTER
CLUTCH SOLENOID
VA LV E"
OFF vehicle12. Forward clutchAT-471, "
Forward and
Overrun Clutches"
13. Reverse clutchAT-463, "Reverse Clutch"
14. Low & reverse brakeAT-476, "Low & Reverse
Brake"
15. Oil pumpAT-444, "Oil Pump"
16. Torque converterAT-425, "
Locations of
Adjusting Shims, Needle
Bearings, Thrust Washers
and Snap Rings"
Symptom Condition Diagnostic ItemReference Page
EURO-OBD

AT-90
[EURO-OBD]
TROUBLE DIAGNOSIS — GENERAL DESCRIPTION
Excessive creep. ON vehicle 1. Engine idling rpmEC-38
[QR25 (WITH
EURO-OBD)], EC-448
[QR25 (WITHOUT EURO-
OBD)], EC-771
[QR20
(WITH EURO-OBD)], EC-
1135 [QR20 (WITHOUT
EURO-OBD)]
No creep at all.
AT- 2 1 5 , "
Vehicle Does Not Creep
Backward In “R” Position" and AT-
218, "Vehicle Does Not Creep For-
ward In “D”,“2” Or “1” Position"
ON vehicle1. Fluid levelAT- 6 3 , "
FLUID LEVEL
CHECK"
2. Line pressure testAT-396, "LINE PRES-
SURE SOLENOID VALVE"
3. Control valve assemblyAT-414, "
Control Valve
Assembly and Accumula-
tors"
OFF vehicle4. Forward clutchAT-471, "
Forward and
Overrun Clutches"
5. Oil pumpAT-444, "Oil Pump"
6. Torque converterAT-425, "
Locations of
Adjusting Shims, Needle
Bearings, Thrust Washers
and Snap Rings"
Failure to change gear from “D1 ” to
“D
2 ”.ON vehicle1. Control cable adjustmentAT-416, "
Control Cable
Adjustment"
2. Shift solenoid valve AAT-170, "
DTC P0750
SHIFT SOLENOID VALVE
A"
3. Control valve assemblyAT-414, "
Control Valve
Assembly and Accumula-
tors"
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- 1 9 9 , "DTC
VEHICLE SPEED SEN-
SOR MTR"
5. Accelerator pedal position (APP) sensorAT-180, "
DTC P1705
ACCELERATOR PEDAL
POSITION (APP) SEN-
SOR"
OFF vehicle 6. Brake bandAT-488, "Band Servo Pis-
ton Assembly"
Symptom Condition Diagnostic ItemReference Page
EURO-OBD

TROUBLE DIAGNOSIS — GENERAL DESCRIPTION
AT-91
[EURO-OBD]
D
E
F
G
H
I
J
K
L
MA
B
AT
Failure to change gear from “D2 ” to
“D
3 ”.ON vehicle1. Control cable adjustmentAT-416, "
Control Cable
Adjustment"
2. Shift solenoid valve BAT-175, "
DTC P0755
SHIFT SOLENOID VALVE
B"
3. Control valve assemblyAT-414, "
Control Valve
Assembly and Accumula-
tors"
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. Accelerator pedal position (APP) sensorAT-180, "
DTC P1705
ACCELERATOR PEDAL
POSITION (APP) SEN-
SOR"
OFF vehicle6. High clutchAT-466, "
High Clutch"
7. Brake bandAT-488, "Band Servo Pis-
ton Assembly"
Failure to change gear from “D3 ” to
“D
4 ”.ON vehicle1. PNP switchAT-110, "
DTC P0705
PARK/NEUTRAL POSI-
TION (PNP) SWITCH"
2. Overdrive control switchAT-241, "TCM Self-diagno-
sis Does Not Activate"
3. Shift solenoid valve AAT-170, "
DTC P0750
SHIFT SOLENOID VALVE
A"
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. A/T fluid temperature sensorAT-193, "
DTC BATT/FLUID
TEMP SEN (A/T FLUID
TEMP SENSOR CIRCUIT
AND TCM POWER
SOURCE)"
OFF vehicle 6. Brake bandAT-488, "Band Servo Pis-
ton Assembly"
Symptom Condition Diagnostic ItemReference Page
EURO-OBD

AT-92
[EURO-OBD]
TROUBLE DIAGNOSIS — GENERAL DESCRIPTION
Too high a gear change point from
“D
1 ” to “D2 ”, from “D2 ” to “D3 ”,
from “D
3 ” to “D4 ”.
AT- 2 2 3 , "
A/T Does Not Shift: D1→
D2 Or Does Not Kickdown: D4→
D2",AT-225, "A/T Does Not Shift: D2
→ D3" and AT-227, "A/T Does Not
Shift: D3→ D4"
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- 1 9 9 , "DTC
VEHICLE SPEED SEN-
SOR MTR"
3. Shift solenoid valve AAT-170, "
DTC P0750
SHIFT SOLENOID VALVE
A"
4. Shift solenoid valve BAT-175, "
DTC P0755
SHIFT SOLENOID VALVE
B"
Gear change directly from “D1 ” to
“D
3 ” occurs.ON vehicle1. Fluid levelAT- 6 3 , "
FLUID LEVEL
CHECK"
2. Accumulator servo releaseAT-414, "
Control Valve
Assembly and Accumula-
tors"
OFF vehicle 3. Brake bandAT-488, "Band Servo Pis-
ton Assembly"
Engine stops when shifting lever
into “R”, “D”, “2” and “1”.ON vehicle1. Engine idling rpmEC-38
[QR25 (WITH
EURO-OBD)], EC-448
[QR25 (WITHOUT EURO-
OBD)], EC-771
[QR20
(WITH EURO-OBD)], EC-
1135 [QR20 (WITHOUT
EURO-OBD)]
2. Fluid levelAT- 6 3 , "
FLUID LEVEL
CHECK"
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"
OFF vehicle 5. Torque converterAT-425, "
Locations of
Adjusting Shims, Needle
Bearings, Thrust Washers
and Snap Rings"
Symptom Condition Diagnostic ItemReference Page
EURO-OBD

TROUBLE DIAGNOSIS — GENERAL DESCRIPTION
AT-93
[EURO-OBD]
D
E
F
G
H
I
J
K
L
MA
B
AT
Too sharp a shock in change from
“D
1 ” to “D2 ”.ON vehicle1. Accelerator pedal position (APP) sensorAT-180, "
DTC P1705
ACCELERATOR PEDAL
POSITION (APP) SEN-
SOR"
2. Line pressure testAT-67, "Line Pressure Test"
3. Accumulator servo releaseAT-414, "
Control Valve
Assembly and Accumula-
tors"
4. Control valve assemblyAT-414, "
Control Valve
Assembly and Accumula-
tors"
5. A/T fluid temperature sensorAT-193, "
DTC BATT/FLUID
TEMP SEN (A/T FLUID
TEMP SENSOR CIRCUIT
AND TCM POWER
SOURCE)"
OFF vehicle 6. Brake bandAT-488, "Band Servo Pis-
ton Assembly"
Too sharp a shock in change from
“D
2 ” to “D3 ”.ON vehicle1. Accelerator pedal position (APP) sensorAT-180, "
DTC P1705
ACCELERATOR PEDAL
POSITION (APP) SEN-
SOR"
2. Line pressure testAT-67, "Line Pressure Test"
3. Control valve assemblyAT-414, "
Control Valve
Assembly and Accumula-
tors"
4. A/T fluid temperature sensorAT-193, "
DTC BATT/FLUID
TEMP SEN (A/T FLUID
TEMP SENSOR CIRCUIT
AND TCM POWER
SOURCE)"
OFF vehicle5. High clutchAT-466, "
High Clutch"
6. Brake bandAT-488, "Band Servo Pis-
ton Assembly"
Too sharp a shock in change from
“D
3 ” to “D4 ”.ON vehicle1. Accelerator pedal position (APP) sensorAT-180, "
DTC P1705
ACCELERATOR PEDAL
POSITION (APP) SEN-
SOR"
2. Line pressure testAT-67, "Line Pressure Test"
3. Control valve assemblyAT-414, "
Control Valve
Assembly and Accumula-
tors"
4. A/T fluid temperature sensorAT-193, "
DTC BATT/FLUID
TEMP SEN (A/T FLUID
TEMP SENSOR CIRCUIT
AND TCM POWER
SOURCE)"
OFF vehicle5. Brake bandAT-488, "
Band Servo Pis-
ton Assembly"
6. Overrun clutchAT-471, "Forward and
Overrun Clutches"
7. Forward one-way clutchAT-421, "OVERHAUL"
Symptom Condition Diagnostic ItemReference Page
EURO-OBD

AT-94
[EURO-OBD]
TROUBLE DIAGNOSIS — GENERAL DESCRIPTION
Almost no shock or clutches slipping
in change from “D
1 ” to “D2 ”.ON vehicle1. Fluid levelAT- 6 3 , "
FLUID LEVEL
CHECK"
2. Accelerator pedal position (APP) sensorAT-180, "
DTC P1705
ACCELERATOR PEDAL
POSITION (APP) SEN-
SOR"
3. Line pressure testAT- 6 7 , "Line Pressure Test"
4. Accumulator servo releaseAT-414, "
Control Valve
Assembly and Accumula-
tors"
5. Control valve assemblyAT-414, "
Control Valve
Assembly and Accumula-
tors"
OFF vehicle 6. Brake bandAT-488, "Band Servo Pis-
ton Assembly"
Almost no shock or slipping in
change from “D
2 ” to “D3 ”.ON vehicle1. Fluid levelAT- 6 3 , "
FLUID LEVEL
CHECK"
2. Accelerator pedal position (APP) sensorAT-180, "
DTC P1705
ACCELERATOR PEDAL
POSITION (APP) SEN-
SOR"
3. Line pressure testAT- 6 7 , "Line Pressure Test"
4. Control valve assemblyAT-414, "
Control Valve
Assembly and Accumula-
tors"
OFF vehicle5. High clutchAT-466, "
High Clutch"
6. Brake bandAT-488, "Band Servo Pis-
ton Assembly"
Almost no shock or slipping in
change from “D
3 ” to “D4 ”.ON vehicle1. Fluid levelAT- 6 3 , "
FLUID LEVEL
CHECK"
2. Accelerator pedal position (APP) sensorAT-180, "
DTC P1705
ACCELERATOR PEDAL
POSITION (APP) SEN-
SOR"
3. Line pressure testAT- 6 7 , "Line Pressure Test"
4. Control valve assemblyAT-414, "
Control Valve
Assembly and Accumula-
tors"
OFF vehicle 5. Brake bandAT-488, "Band Servo Pis-
ton Assembly"
Vehicle braked by gear change from
“D
1 ” to “D2 ”.ON vehicle 1. Fluid levelAT- 6 3 , "
FLUID LEVEL
CHECK"
OFF vehicle2. Reverse clutchAT-463, "
Reverse Clutch"
3. Low & reverse brakeAT-476, "Low & Reverse
Brake"
4. High clutchAT-466, "High Clutch"
5. Low one-way clutchAT-421, "
OVERHAUL",AT-
425, "Locations of Adjust-
ing Shims, Needle Bear-
ings, Thrust Washers and
Snap Rings"
Symptom Condition Diagnostic ItemReference Page
EURO-OBD