2001 NISSAN X-TRAIL brake sensor

AT-108
[EURO-OBD]
TROUBLE DIAGNOSIS — GENERAL DESCRIPTION
*2: These terminals are connected to the ECM.
*3: These terminals are connected to the data link connector.29 W Revolution sensorWhen moving at 20 km/h (12 MPH),
use the CONSULT-II pulse frequency
measuring function.*1
CAUTION:
Connect the diagnosis data link
cable to the vehicle diagnosis
connector.
*1: A circuit tester cannot be used to
test this item.450 Hz
When vehicle parks.Under 1.3V or
over 4.5V
30 *3 G/B CONSULT- II (RX) — —
31 *3 GY/L CONSULT- II (TX) — —
32 *2 RThrottle position
sensor
(Power source)
or When turning ignition switch to “ON”. 4.5 - 5.5V
When turning ignition switch to
“OFF”.0V
34 W/GPNP switch “D”
position
and When setting selector lever to “D”
position.Battery voltage
When setting selector lever to other
positions.0V
35 L/WPNP switch “R”
positionWhen setting selector lever to “R”
position.Battery voltage
When setting selector lever to other
positions.0V
36 GPNP switch “N” or
“P” positionWhen setting selector lever to “N” or
“P” position.Battery voltage
When setting selector lever to other
positions.0V
39 *2 L/OREngine speed sig-
nal
and Refer to EC-87, "
ECM INSPECTION
TABLE" (QR25DE) or EC-819,
"ECM INSPECTION TABLE"
(QR20DE).—
40 L/BVehicle speed
sensorWhen moving vehicle at 2 to 3 km/h
(1 to 2 MPH) for 1 m (3 ft) or more.Voltage varies
between less
than 0V and
more than 4.5V
41 W/RThrottle position
sensorWhen depressing accelerator pedal
slowly after warming up engine.
(Voltage rises gradually in response
to throttle position.)Fully-closed
throttle: 0.5V
Fully-open throt-
tle: 4V
42 BThrottle position
sensor
(Ground)———
45 P Stop lamp switchWhen depressing brake pedal. Battery voltage
When releasing brake pedal. 0V
47 BRA/T fluid tempera-
ture sensorWhen ATF temperature is 20°C
(68°F).1.5V
When ATF temperature is 80°C
(176°F).0.5V
48 B/W Ground — — — Te r m i -
nal No.Wire color Item ConditionJudgementstan-
dard(Approx.)

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

TROUBLE DIAGNOSES FOR SYMPTOMS
AT-233
[EURO-OBD]
D
E
F
G
H
I
J
K
L
MA
B
AT
Engine Speed Does Not Return To Idle (Light Braking D4→ D3 )ECS004T8
SYMPTOM:
●Engine speed does not smoothly return to idle when A/T shifts from D4 to D3 .
●Vehicle does not decelerate by engine brake when turning overdrive control switch OFF.
●Vehicle does not decelerate by engine brake when shifting A/T from “D” to “2” position.
1.CHECK SELF-DIAGNOSTIC RESULTS
Does self-diagnosis show damage to overrun clutch solenoid valve
circuit after cruise test?
Ye s o r N O
Yes >> Check overrun clutch solenoid valve circuit. Refer to AT-
185, "DTC P1760 OVERRUN CLUTCH SOLENOID
VA LV E" (Euro-OBD).
No >> GO TO 2.
2.CHECK ACCELERATOR PEDAL POSITION (APP) SENSOR
Check accelerator pedal position (APP) sensor. Refer to AT- 1 8 0 ,
"DTC P1705 ACCELERATOR PEDAL POSITION (APP) SENSOR"
— Euro-OBD
OK or NG
OK >> GO TO 3.
NG >> Repair or replace accelerator pedal position (APP) sen-
sor. (AT- 1 8 0 , "
DTC P1705 ACCELERATOR PEDAL
POSITION (APP) SENSOR" : Euro-OBD)
3.CHECK A/T FLUID CONDITION
1. Remove oil pan.
2. Check A/T fluid condition.
OK or NG
OK >> GO TO 4.
NG >> GO TO 6.
SCIA0774E
PBIB0498E
SAT171B

AT-240
[EURO-OBD]
TROUBLE DIAGNOSES FOR SYMPTOMS
Vehicle Does Not Decelerate By Engine Brake
ECS004TD
SYMPTOM:
Vehicle does not decelerate by engine brake when shifting from 2
2 (12 ) to 11 .
1. CHECK PNP SWITCH CIRCUIT
With CONSULT-II
Does “TCM INPUT SIGNALS” in “DATA MONITOR” show damage to PNP switch circuit?
Without CONSULT-II
Does self-diagnosis show damage to PNP switch circuit?
Ye s o r N o
Yes >> Check PNP switch circuit. Refer to AT-241, "TCM Self-
diagnosis Does Not Activate" .
No >> GO TO 2.
2. CHECK CONTROL CABLE
Check control cable. Refer to AT- 4 1 6 , "
Control Cable Adjustment" .
OK or NG
OK >> GO TO 3.
NG >> Adjust control cable. Refer to AT- 4 1 6 , "
Control Cable
Adjustment" .
3. CHECK VEHICLE SPEED SENSOR·A/T (REVOLUTION SENSOR) AND CHECK VEHICLE SPEED
SENSOR·MTR CIRCUIT
Check vehicle speed sensor·A/T (revolution sensor) and vehicle speed sensor·MTR circuit. Refer to AT- 3 5 3 ,
"VEHICLE SPEED SENSOR·A/T (REVOLUTION SENSOR)" and AT- 1 2 2 , "DTC P0720 VEHICLE SPEED
SENSOR·A/T (REVOLUTION SENSOR)" (Except for Euro-OBD)./ Refer to AT- 3 5 8 , "DTC VEHICLE SPEED
SENSOR MTR" and AT-199, "DTC VEHICLE SPEED SENSOR MTR" (EURO-OBD).
OK or NG
OK >> GO TO 4.
NG >> Repair or replace vehicle speed sensor·A/T (revolution sensor) and vehicle speed sensor·MTR
circuits.
SCIA0706E
SAT023JB

AT-260
[EXC.F/EURO-OBD]
TROUBLE DIAGNOSIS — INTRODUCTION
Diagnostic Worksheet
1.❏ Read the Fail-safe and listen to customer complaints.AT- 8 , "Wiring
Diagrams
and Trouble
Diagnosis",
AT-259,
"DIAGNOS-
TIC WORK-
SHEET"
2.❏ CHECK A/T FLUIDAT-264, "A/T
Fluid Check"❏ Leakage (Follow specified procedure)
❏ Fluid condition
❏ Fluid level
3.❏ Perform STALL TEST and LINE PRESSURE TEST.AT- 2 6 5 , "
Stall
Te s t",
AT-268, "
Line
Pressure
Te s t"
❏ 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-269,
"Road Test"
4-1. Check before engine is started.AT-271, "1.
CHECK
BEFORE
ENGINE IS
STARTED"
❏ O/D OFF Indicator Lamp Does Not Come On, AT-312 .
❏ SELF-DIAGNOSTIC CONFIRMATION PROCEDURE — Mark detected items.
❏ Vehicle speed sensor·A/T (Revolution sensor), AT-353
.
❏ Vehicle speed sensor·MTR, AT- 3 5 8
.
❏ Accelerator pedal position (APP) sensor, AT-362
.
❏ Shift solenoid valve A, AT-367
.
❏ Shift solenoid valve B, AT-372
.
❏ Overrun clutch solenoid valve, AT-377
.
❏ Torque converter clutch solenoid valve, AT- 3 8 1
.
❏ A/T fluid temperature sensor and TCM power source, AT-386
.
❏ Engine speed signal, AT-392
.
❏ Line pressure solenoid valve, AT-396
.
❏ CAN communication line, AT-403
.
❏ 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)" .
❏ PNP & overdrive control switches, and throttle position sensor, AT- 3 4 4
.
❏ Battery
❏ Others
4-2. Check at idleAT-272, "
2.
CHECK AT
IDLE"❏ Engine Cannot Be Started In “P” And “N” Position, AT-314 .
❏ In “P” Position, Vehicle Moves Forward Or Backward When Pushed, AT- 3 1 5
.
❏ In “N” Position, Vehicle Moves, AT- 3 1 5
.
❏ Large Shock. “N” → “R” Position, AT-317
.
❏ Vehicle Does Not Creep Backward In “R” Position, AT- 3 1 7
.
❏ Vehicle Does Not Creep Forward In “D”, “2” Or “1” Position, AT- 3 2 1
.

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"

TROUBLE DIAGNOSIS — BASIC INSPECTION
AT-269
[EXC.F/EURO-OBD]
D
E
F
G
H
I
J
K
L
MA
B
AT
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-522, "
Line Pressure" .
JUDGEMENT OF LINE PRESSURE TEST
Road TestECS004VU
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-19, "
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

AT-290
[EXC.F/EURO-OBD]
TROUBLE DIAGNOSIS — GENERAL DESCRIPTION
Vehicle will not run in “D”, “1”, “2” posi-
tions (but runs in “R” position). Clutch
slips. Very poor acceleration.
AT- 3 2 1 , "
Vehicle Does Not Creep For-
ward In “D”,“2” Or “1” Position"
OFF vehicle7. Reverse clutch AT-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
Adjusting Shims, Needle
Bearings, Thrust Washers
and Snap Rings"
Clutches or brakes slip somewhat in
starting.ON vehicle1. Fluid levelAT-264, "
FLUID LEVEL
CHECK"
2. Control cable adjustmentAT-416, "Control Cable
Adjustment"
3. Accelerator pedal position (APP) sensorAT-362, "
ACCELE
RATOR PEDAL POSI-
TION (APP) SENSOR"
4. Line pressure testAT-268, "Line Pressure
Te s t"
5. Line pressure solenoid valveAT-396, "
LINE PRES-
SURE 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-367, "SHIFT SOLE-
NOID VALVE A"
9. Shift solenoid valve BAT-372, "SHIFT SOLE-
NOID VALVE B"
10. Overrun clutch solenoid valveAT-377, "
OVERRUN
CLUTCH SOLENOID
VA LV E"
11. Torque converter clutch solenoid valveAT-381, "
TORQUE CON-
VERTER CLUTCH
SOLENOID VALVE"
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"
Excessive creep. ON vehicle 1. Engine idling rpmEC-1391, "Idle Speed and
Ignition Timing"
Symptom Condition Diagnostic Item Reference Page