2003 NISSAN X-TRAIL ACCELERATOR PEDAL PEDAL POSITION SENSOR

AT-280
[EXC.F/EURO-OBD]
TROUBLE DIAGNOSIS — GENERAL DESCRIPTION

Too sharp a shock in change from “D1
” to “D
2 ”.ON vehicle1. Accelerator pedal position (APP) sensorAT-345
2. Line pressure testAT-260
3. Accumulator servo releaseAT-404
4. Control valve assemblyAT-404
5. A/T fluid temp sen circ and TCM pow
sourAT-374
OFF vehicle 6. Brake bandAT-497
Too sharp a shock in change from “D2
” to “D
3 ”.ON vehicle1. Accelerator pedal position (APP) sensorAT-345
2. Line pressure testAT-260
3. Control valve assemblyAT-404
4. A/T fluid temp sen circ and TCM pow
sourAT-374
OFF vehicle5. High clutchAT-4696. Brake bandAT-497
Too sharp a shock in change from “D3
” to “D
4 ”.ON vehicle1. Accelerator pedal position (APP) sensorAT-345
2. Line pressure testAT-260
3. Control valve assemblyAT-404
4. A/T fluid temp sen circ and TCM pow
sourAT-374
OFF vehicle5. Brake bandAT-4976. Overrun clutchAT-475
7. Forward one-way clutchAT-416
Almost no shock or clutches slipping
in change from “D
1 ” to “D2 ”.ON vehicle1. Fluid levelAT-256
2. Accelerator pedal position (APP) sensorAT-345
3. Line pressure testAT-260
4. Accumulator servo releaseAT-404
5. Control valve assemblyAT-404
OFF vehicle 6. Brake bandAT-497
Almost no shock or slipping in change
from “D
2 ” to “D3 ”.ON vehicle1. Fluid levelAT-256
2. Accelerator pedal position (APP) sensorAT-345
3. Line pressure testAT-260
4. Control valve assemblyAT-404
OFF vehicle5. High clutchAT-4696. Brake bandAT-497
Almost no shock or slipping in change
from “D
3 ” to “D4 ”.ON vehicle1. Fluid levelAT-256
2. Accelerator pedal position (APP) sensorAT-345
3. Line pressure testAT-260
4. Control valve assemblyAT-404
OFF vehicle 5. Brake bandAT-497
Vehicle braked by gear change from
“D
1 ” to “D2 ”.ON vehicle 1. Fluid levelAT-256OFF vehicle2. Reverse clutchAT-464
3. Low & reverse brakeAT-483
4. High clutchAT-469
5. Low one-way clutchAT-416,
AT-423
Symptom Condition Diagnostic Item Reference Page

TROUBLE DIAGNOSIS — GENERAL DESCRIPTION
AT-281
[EXC.F/EURO-OBD]
D
E
F
G
H
I
J
K
L
MA
B
AT

Vehicle braked by gear change from
“D
2 ” to “D3 ”.ON vehicle 1. Fluid levelAT- 2 5 6OFF vehicle 2. Brake bandAT- 4 9 7
Vehicle braked by gear change from
“D
3 ” to “D4 ”.ON vehicle 1. Fluid levelAT- 2 5 6OFF vehicle2. Overrun clutchAT- 3 6 23. Forward one-way clutchAT- 4 1 6
4. Reverse clutchAT- 4 6 4
Maximum speed not attained. Accel-
eration poor.ON vehicle1. Fluid levelAT- 2 5 6
2. PNP switchAT- 3 2 4
3. Overdrive control switchAT- 3 2 4
4. Accelerator pedal position (APP) sensorAT- 3 4 5
5. Shift solenoid valve AAT- 3 5 0
6. Shift solenoid valve BAT- 3 5 6
7. Control valve assemblyAT- 4 0 4
OFF vehicle8. Reverse clutchAT- 4 6 4
9. High clutchAT- 4 6 9
10. Brake bandAT- 4 9 7
11. Low & reverse brakeAT- 4 8 3
12. Oil pumpAT- 4 4 3
13. Torque converterAT- 4 2 3
Failure to change gear from “D4 ” to
“D
3 ”.ON vehicle1. Fluid levelAT- 2 5 6
2. Accelerator pedal position (APP) sensorAT- 3 4 5
3. Overrun clutch solenoid valveAT- 3 6 2
4. Shift solenoid valve AAT- 3 5 0
5. Line pressure solenoid valveAT- 3 8 7
6. Control valve assemblyAT- 4 0 4
OFF vehicle7. Brake bandAT- 4 9 78. Overrun clutchAT- 4 7 5
Failure to change gear from “D3 ” to
“D
2 ” or from “D4 ” to “D2 ”.ON vehicle1. Fluid levelAT- 2 5 6
2. Accelerator pedal position (APP) sensorAT- 3 4 5
3. Shift solenoid valve AAT- 3 5 0
4. Shift solenoid valve BAT- 3 5 6
5. Control valve assemblyAT- 4 0 4
OFF vehicle6. High clutchAT- 4 6 97. Brake bandAT- 4 9 7
Failure to change gear from “D2 ” to
“D
1 ” or from “D3 ” to “D1 ”.ON vehicle1. Fluid levelAT- 2 5 6
2. Accelerator pedal position (APP) sensorAT- 3 4 5
3. Shift solenoid valve AAT- 3 5 0
4. Shift solenoid valve BAT- 3 5 6
5. Control valve assemblyAT- 4 0 4
OFF vehicle6. Low one-way clutchAT- 4 1 6
,
AT- 4 2 3
7. High clutchAT- 4 6 9
8. Brake bandAT- 4 9 7
Symptom Condition Diagnostic Item Reference Page

AT-282
[EXC.F/EURO-OBD]
TROUBLE DIAGNOSIS — GENERAL DESCRIPTION

Gear change shock felt during decel-
eration by releasing accelerator pedal.ON vehicle1. Accelerator pedal position (APP) sensorAT-3452. Line pressure testAT-260
3. Overrun clutch solenoid valveAT-362
4. Control valve assemblyAT-404
Too high a change point from “D4 ” to
“D
3 ”, from “D3 ” to “D2 ”, from “D2 ” to
“D
1 ”.ON vehicle1. Accelerator pedal position (APP) sensorAT-3452. Vehicle speed sensor·A/T (Revolution
sensor) and vehicle speed sensor·MTRAT-332, AT-339
Kickdown does not operate when
depressing pedal in “D
4 ” within kick
down vehicle speed.ON vehicle1. Accelerator pedal position (APP) sensorAT-345
2. Vehicle speed sensor·A/T (Revolution
sensor) and vehicle speed sensor·MTRAT-332, AT-339
3. Shift solenoid valve AAT-350
4. Shift solenoid valve BAT-356
Kickdown operates or engine over-
runs when depressing pedal in “D
4 ”
beyond kick down vehicle speed limit.ON vehicle1. Vehicle speed sensor·A/T (Revolution
sensor) and vehicle speed sensor·MTRAT-332
, AT-339
2. Accelerator pedal position (APP) sensorAT-345
3. Shift solenoid valve AAT-350
4. Shift solenoid valve BAT-356
Races extremely fast or slips in
changing from “D
4 ” to “D3 ” when
depressing pedal.ON vehicle1. Fluid levelAT-256
2. Accelerator pedal position (APP) sensorAT-345
3. Line pressure testAT-260
4. Line pressure solenoid valveAT-387
5. Shift solenoid valve AAT-350
6. Control valve assemblyAT-404
OFF vehicle7. Brake bandAT-4978. Forward clutchAT-475
Races extremely fast or slips in
changing from “D
4 ” to “D2 ” when
depressing pedal.ON vehicle1. Fluid levelAT-256
2. Accelerator pedal position (APP) sensorAT-345
3. Line pressure testAT-260
4. Line pressure solenoid valveAT-387
5. Shift solenoid valve AAT-350
6. Shift solenoid valve BAT-356
7. Control valve assemblyAT-404
OFF vehicle8. Brake bandAT-4979. High clutchAT-469
10. Forward clutchAT-475
Races extremely fast or slips in
changing from “D
3 ” to “D2 ” when
depressing pedal.ON vehicle1. Fluid levelAT-256
2. Accelerator pedal position (APP) sensorAT-345
3. Line pressure testAT-260
4. Line pressure solenoid valveAT-387
5. Control valve assemblyAT-404
6. Shift solenoid valve BAT-356
OFF vehicle7. Brake bandAT-4978. High clutchAT-469
Symptom Condition Diagnostic Item Reference Page

TROUBLE DIAGNOSIS — GENERAL DESCRIPTION
AT-283
[EXC.F/EURO-OBD]
D
E
F
G
H
I
J
K
L
MA
B
AT
Races extremely fast or slips in
changing from “D
4 ” or “D3 ” to “D1 ”
when depressing pedal.ON vehicle1. Fluid levelAT- 2 5 6
2. Accelerator pedal position (APP) sensorAT- 3 4 5
3. Line pressure testAT- 2 6 0
4. Line pressure solenoid valveAT- 3 8 7
5. Shift solenoid valve AAT- 3 5 0
6. Shift solenoid valve BAT- 3 5 6
7. Control valve assemblyAT- 4 0 4
OFF vehicle8. Forward clutchAT- 4 7 59. Forward one-way clutchAT- 4 1 6
10. Low one-way clutchAT- 4 1 6,
AT- 4 2 3
Vehicle will not run in any position.ON vehicle1. Fluid levelAT- 2 5 6
2. Control cable adjustmentAT- 4 0 9
3. Line pressure testAT- 2 6 0
4. Line pressure solenoid valveAT- 3 8 7
OFF vehicle5. Oil pumpAT- 4 4 36. Torque converterAT- 4 2 3
7. Parking componentsAT- 4 1 6
Transmission noise in “D”, “2”, “1” and
“R” positions.ON vehicle 1. Fluid levelAT- 2 5 6
OFF vehicle 2. Torque converterAT- 4 2 3
Failure to change from “D3 ” to “22 ”
when changing lever into “2” position.
AT- 3 1 9ON vehicle1. Accelerator pedal position (APP) sensorAT- 3 4 52. Shift solenoid valve BAT- 3 5 6
3. Control valve assemblyAT- 4 0 4
4. Control cable adjustmentAT- 4 0 9
OFF vehicle 5. Brake bandAT- 4 9 7
Gear change from “22 ” to “23 ” in “2”
position.ON vehicle1. PNP switchAT- 3 2 4
2. Control cable adjustmentAT- 4 0 9
Engine brake does not operate in “1”
position.
AT- 3 1 7ON vehicle1. PNP switchAT- 3 2 4
2. Control cable adjustmentAT- 4 0 9
3. Vehicle speed sensor·A/T (Revolution
sensor) and vehicle speed sensor·MTRAT- 3 3 2, AT-339
4. Control valve assemblyAT- 4 0 4
5. Overrun clutch solenoid valveAT- 3 6 2
OFF vehicle6. Overrun clutchAT- 4 7 57. Low & reverse brakeAT- 4 8 3
Gear change from “11 ” to “12 ” in “1”
position.ON vehicle1. PNP switchAT- 3 2 4
2. Control cable adjustmentAT- 4 0 9
Does not change from “12 ” to “11 ” in
“1” position.ON vehicle1. PNP switchAT- 3 2 4
2. Vehicle speed sensor·A/T (Revolution
sensor) and vehicle speed sensor·MTRAT- 3 3 2, AT-339
3. Shift solenoid valve AAT- 3 5 0
4. Control valve assemblyAT- 4 0 4
OFF vehicle5. Low one-way clutchAT- 4 1 6
,
AT- 4 2 3
6. Brake bandAT- 4 9 7
7. Low & reverse brakeAT- 4 8 3
Symptom Condition Diagnostic Item Reference Page

AT-284
[EXC.F/EURO-OBD]
TROUBLE DIAGNOSIS — GENERAL DESCRIPTION

Large shock changing from “12 ” to “11
” in “1” position.ON vehicle 1. Control valve assemblyAT-404
OFF vehicle 2. Low & reverse brakeAT-483
Transmission overheats. ON vehicle1. Fluid levelAT-256
2. Engine idling rpmEC-506
3. Accelerator pedal position (APP) sensorAT-345
4. Line pressure testAT-260
5. Line pressure solenoid valveAT-387
6. Control valve assemblyAT-404
Transmission overheats. OFF vehicle7. Oil pumpAT-443
8. Reverse clutchAT-464
9. High clutchAT-469
10. Brake bandAT-497
11. Forward clutchAT-475
12. Overrun clutchAT-475
13. Low & reverse brakeAT-483
14. Torque converterAT-423
ATF shoots out during operation.
White smoke emitted from exhaust
pipe during operation.ON vehicle 1. Fluid levelAT-256
OFF vehicle2. Reverse clutchAT-464
3. High clutchAT-469
4. Brake bandAT-497
5. Forward clutchAT-475
6. Overrun clutchAT-475
7. Low & reverse brakeAT-483
Offensive smell at fluid charging pipe.ON vehicle 1. Fluid levelAT-256OFF vehicle2. Torque converterAT-423
3. Oil pumpAT-443
4. Reverse clutchAT-464
5. High clutchAT-469
6. Brake bandAT-497
7. Forward clutchAT-475
8. Overrun clutchAT-475
9. Low & reverse brakeAT-483
Torque converter is not locked up. ON vehicle1. Accelerator pedal position (APP) sensorAT-345
2. Vehicle speed sensor·A/T (Revolution
sensor) and vehicle speed sensor·MTRAT-332, AT-339
3. Engine speed signalAT-382
4. A/T fluid temp sen circ and TCM pow
sourAT-374
5. Line pressure testAT-260
6. Torque converter clutch solenoid valveAT-368
7. Control valve assemblyAT-404
Torque converter is not locked up. OFF vehicle 8. Torque converterAT-423
Symptom Condition Diagnostic Item Reference Page

TROUBLE DIAGNOSIS — GENERAL DESCRIPTION
AT-285
[EXC.F/EURO-OBD]
D
E
F
G
H
I
J
K
L
MA
B
AT

Torque converter clutch piston slip.ON vehicle1. Fluid levelAT- 2 5 6
2. Accelerator pedal position (APP) sensorAT- 3 4 5
3. Line pressure testAT- 2 6 0
4. Torque converter clutch solenoid valveAT- 3 6 8
5. Line pressure solenoid valveAT- 3 8 7
6. Control valve assemblyAT- 4 0 4
OFF vehicle 7. Torque converterAT- 4 2 3
Lock-up point is extremely high or low.
AT- 3 11ON vehicle1. Accelerator pedal position (APP) sensorAT- 3 4 5
2. Vehicle speed sensor·A/T (Revolution
sensor) and vehicle speed sensor·MTRAT- 3 3 2, AT-339
3. Torque converter clutch solenoid valveAT- 3 6 8
4. Control valve assemblyAT- 4 0 4
A/T does not shift to “D4 ” when driv-
ing with overdrive control switch “ON”.ON vehicle1. Accelerator pedal position (APP) sensorAT- 3 4 5
2. PNP switchAT- 3 2 4
3. Overdrive control switchAT- 3 2 4
4. Vehicle speed sensor·A/T (Revolution
sensor) and vehicle speed sensor·MTRAT- 3 3 2, AT-339
5. Shift solenoid valve AAT- 3 5 0
6. Overrun clutch solenoid valveAT- 3 6 2
7. Control valve assemblyAT- 4 0 4
8. A/T fluid temp sen circ and TCM pow
sourAT- 3 7 4
9. Line pressure testAT- 2 6 0
A/T does not shift to “D4 ” when driv-
ing with overdrive control switch “ON”.OFF vehicle10. Brake bandAT- 4 9 7
11. Overrun clutchAT- 4 7 5
Engine is stopped at “R”, “D”, “2” and
“1” positions.ON vehicle1. Fluid levelAT- 2 5 6
2. Torque converter clutch solenoid valveAT- 3 6 8
3. Shift solenoid valve AAT- 3 5 0
4. Shift solenoid valve BAT- 3 5 6
5. Control valve assemblyAT- 4 0 4
Symptom Condition Diagnostic Item Reference Page

AT-288
[EXC.F/EURO-OBD]
TROUBLE DIAGNOSIS — GENERAL DESCRIPTION

*1: These terminals are connected to the ECM.
*2: These terminals are connected to the data link connector.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 Y/GPNP 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 *1 L/OREngine speed sig-
nal
and Refer to EC-95, "
ECM INSPECTION
TABLE" .—
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 G/YThrottle 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 B Sensor ground Always 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 Ground Always 0V Te r m i -
nal No.Wire color Item ConditionJudgementstan-
dard(Approx.)

AT-296
[EXC.F/EURO-OBD]
TROUBLE DIAGNOSES FOR SYMPTOMS

Large Shock. “N” → “R” PositionECS00EBI
SYMPTOM:
There is large shock when changing from “N” to “R” position.
1. CHECK SELF-DIAGNOSTIC RESULTS
Perform self-diagnosis. Refer to AT- 2 4 2 , "
SELF-DIAGNOSTIC PROCEDURE (WITH CONSULT-II)" or AT-
246, "Diagnostic Procedure Without CONSULT-II" .
Do the self-diagnosis results indicate A/T fluid temperature sensor, line pressure solenoid valve, accelerator
pedal position (APP) sensor circuit?
YES >>
Check damaged circuit. Refer to the following items.
–AT- 3 8 7 , "LINE PRESSURE SOLENOID VALVE"
–AT- 3 4 5 , "ACCELE RATOR PEDAL POSITION (APP) SENSOR"
–AT- 3 7 4 , "BATT/FLUID TEMP SEN (A/T FLUID TEMP SENSOR CIRCUIT AND TCM POWER
SOURCE)"
NO >> GO TO 2
2. CHECK LINE PRESSURE
Check line pressure at idle with selector lever in D position. Refer to
AT- 2 6 0 , "
Line Pressure Test" .
OK or NG
OK >> GO TO 3.
NG >> 1. Remove control valve assembly. Refer to AT- 4 0 4 ,
"Control Valve Assembly and Accumulators" .
2. Check the following items:
–Valves to control line pressure (Pressure regulator
valve, pressure modifier valve, pilot valve and pilot fil-
ter)
–Line pressure solenoid valve
–Oil pump assembly. Refer to AT- 4 4 3 , "Oil Pump" .
3. CHECK SYMPTOM
Check again. Refer to AT- 2 6 4 , "
2. CHECK AT IDLE" .
OK or NG
OK >>INSPECTION END
NG >> 1. Perform TCM input/output signal inspection. Refer to AT- 2 8 6 , "
TCM Terminals and Reference
Va l u e" .
2. If NG, recheck TCM pin terminals for damage or loose connection with harness connector.
SAT494G