2003 NISSAN X-TRAIL ACCELERATOR PEDAL PEDAL POSITION SENSOR

TROUBLE DIAGNOSES FOR SYMPTOMS
AT-239
[EURO-OBD]
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3. CHECK OVERDRIVE CONTROL SWITCH CIRCUIT
With CONSULT-II
1. Turn ignition switch to ON. (Do not start engine.)
2. Select “TCM INPUT SIGNALS” in “DATA MONITOR” mode for “A/T” with CONSULT-II.
3. Read out “OVERDRIVE SWITCH”.
Check the signal of the overdrive control switch is indicated properly.
(Overdrive control switch ON displayed on CONSULT-II means
overdrive OFF.)
OK or NG
OK >> GO TO 4.
NG >> Check the following items:

Overdrive control switch (Refer to AT- 2 4 0 , "COMPO-
NENT INSPECTION" .)

Harness for short or open between Combination
meter and overdrive control switch

Harness of ground circuit for overdrive control switch
for short or open

Combination Meter (Refer to DI-4, "COMBINATION METERS" .)
4. CHECK CLOSED THROTTLE POSITION AND WIDE OPEN THROTTLE POSITION SIGNAL CIRCUIT
(WITH CONSULT-II)
With CONSULT-II
1. Turn ignition switch to ON. (Do not start engine.)
2. Select “TCM INPUT SIGNALS” in “DATA MONITOR” mode for “A/T” with CONSULT-II.
3. Read out “CLOSED THL/SW” and “W/O THRL-SW” depressing and releasing accelerator pedal.
Check the signal of throttle position signal is indicated properly.
OK or NG
OK >> GO TO 5.
NG >> Check the following items. If any items are damaged, repair or replace damaged parts.

Accelerator pedal position sensor — Refer to AT- 1 7 3 , "DTC P1705 ACCELERATOR PEDAL
POSITION (APP) SENSOR" .

Harness for short or open between accelerator pedal position sensor and ECM
SAT645J
Accelerator pedal
conditionData monitor
CLOSED THL/SW W/O THRL-SW
Released ON OFF
Fully depressed OFF ON
SAT646J

AT-240
[EURO-OBD]
TROUBLE DIAGNOSES FOR SYMPTOMS

5. CHECK CLOSED THROTTLE POSITION AND WIDE OPEN THROTTLE POSITION SIGNAL CIRCUIT
(WITHOUT CONSULT-II)
Without CONSULT-II
Check the following items:

Accelerator pedal position sensor — Refer to AT- 1 7 3 , "DTC P1705 ACCELERATOR PEDAL POSITION
(APP) SENSOR" .

Harness for short or open between accelerator pedal position sensor and ECM
OK or NG
OK >> GO TO 6.
NG >> Repair or replace damaged parts.
6. CHECK DTC
Perform AT- 5 2 , "
TCM SELF-DIAGNOSTIC PROCEDURE (NO TOOLS)" .
OK or NG
OK >>INSPECTION END
NG >>

Perform TCM input/output signal inspection. Refer to AT- 9 4 , "TCM Terminals and Reference
Va l u e" .

If NG, recheck TCM pin terminals for damage or loose connection with harness connector.
COMPONENT INSPECTION
Overdrive Control Switch

Check continuity between two terminals 1 and 2.
Switch position Continuity
ON No
OFF Yes
SCIA4647E

AT-248
[EXC.F/EURO-OBD]
ON BOARD DIAGNOSTIC SYSTEM DESCRIPTION

JUDGEMENT OF SELF-DIAGNOSIS CODE
O/D OFF indicator lamp:
All judgement flickers are the same.
All circuits that can be confirmed by self-diagnosis are OK.1st judgement flicker is longer than others.
Revolution sensor circuit is short-circuited or disconnected.

Go to VEHICLE SPEED SENSOR·A/T (REVOLUTION SEN-
SOR).
Refer to AT- 3 3 2
2nd judgement flicker is longer than others.
Vehicle speed sensor circuit is short-circuited or disconnected.

Go to VEHICLE SPEED SENSOR·MTR.
Refer to AT-3393rd judgement flicker is longer than others.
Accelerator pedal position (APP) sensor circuit is short-circuited
or disconnected.

Go to ACCELERATOR PEDAL POSITION (APP) SENSOR.
Refer to AT- 3 4 5
4th judgement flicker is longer than others.
Shift solenoid valve A circuit is short-circuited or disconnected.

Go to SHIFT SOLENOID VALVE A.
Refer to AT-3505th judgement flicker is longer than others.
Shift solenoid valve B circuit is short-circuited or disconnected.

Go to SHIFT SOLENOID VALVE B.
Refer to AT- 3 5 6
SCIA4672ESCIA5591E
SCIA5592ESCIA5593E
SCIA5594ESCIA5595E

TROUBLE DIAGNOSIS — INTRODUCTION
AT-253
[EXC.F/EURO-OBD]
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Diagnostic Worksheet
1.❏ Read the Fail-safe and listen to customer complaints.AT- 11,
AT- 2 5 2
2.❏ Check A/T fluidAT- 2 5 6
❏ Leakage (Follow specified procedure)
❏ Fluid condition
❏ Fluid level
3.❏ Perform Stall Test and Line Pressure Test.AT- 2 5 7
,
AT- 2 6 0
❏ 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- 2 6 2
4-1. Check before engine is started.AT- 2 6 3
❏ O/D OFF Indicator Lamp Does Not Come On, AT- 2 9 1 .
❏ SELF-DIAGNOSTIC CONFIRMATION PROCEDURE — Mark detected items.
❏ Vehicle speed sensor·A/T (Revolution sensor), AT- 3 3 2
.
❏ Vehicle speed sensor·MTR, AT-339
.
❏ Accelerator pedal position (APP) sensor, AT-345
.
❏ Shift solenoid valve A, AT- 3 5 0
.
❏ Shift solenoid valve B, AT- 3 5 6
.
❏ Overrun clutch solenoid valve, AT- 3 6 2
.
❏ Torque converter clutch solenoid valve, AT-368
.
❏ A/T fluid temperature sensor and TCM power source, AT-374
.
❏ Engine speed signal, AT- 3 8 2
.
❏ Line pressure solenoid valve, AT-387
.
❏ CAN communication line, AT- 3 2 9
.
❏ Control unit (RAM), control unit (ROM), AT-198
.
❏ Control unit (EEP ROM), AT-200
.
❏ PNP & overdrive control switches, and throttle position sensor, AT- 3 2 4
.
❏ Battery
❏ Others
4-2. Check at idleAT- 2 6 4
❏ Engine Cannot Be Started In “P” And “N” Position, AT- 2 9 3 .
❏ In “P” Position, Vehicle Moves Forward Or Backward When Pushed, AT- 2 9 4
.
❏ In “N” Position, Vehicle Moves, AT- 2 9 5
.
❏ Large Shock. “N” → “R” Position, AT- 2 9 6
.
❏ Vehicle Does Not Creep Backward In “R” Position, AT- 2 9 7
.
❏ Vehicle Does Not Creep Forward In “D”, “2” Or “1” Position, AT-299
.

AT-254
[EXC.F/EURO-OBD]
TROUBLE DIAGNOSIS — INTRODUCTION

4. 4-3. Cruise testAT-266,
AT-270
Part-1
❏ Vehicle Cannot Be Started From D
1 , AT- 3 0 1 .
❏ A/T Does Not Shift: D
1 → D2 Or Does Not Kickdown: D4 → D2 , AT-304 .
❏ A/T Does Not Shift: D
2 → D3 , AT- 3 0 7 .
❏ A/T Does Not Shift: D
3 → D4 , AT- 3 0 9 .
❏ A/T Does Not Perform Lock-up,AT- 3 11
.
❏ A/T Does Not Hold Lock-up Condition, AT- 3 1 2
.
❏ Lock-up Is Not Released, AT- 3 1 4
.
❏ Engine Speed Does Not Return To Idle (Light Braking D
4 → D3 ), AT-315 .
Part-2AT-273
❏ Vehicle Does Not Start From D1 , AT- 3 1 7 .
❏ A/T Does Not Shift: D
1 → D2 Or Does Not Kickdown: D4 → D2 , AT-304 .
❏ A/T Does Not Shift: D
2 → D3 , AT- 3 0 7 .
❏ A/T Does Not Shift: D
3 → D4 , AT- 3 0 9 .
Part-3AT-275
❏ A/T Does Not Shift: D4 → D3 When Overdrive Control Switch “ON” → “OFF”, AT-318 .
❏ Engine Speed Does Not Return To Idle (Engine Brake In D
3 ), AT- 3 1 5 .
❏ A/T Does Not Shift: D
3 → 22 , When Selector Lever “D” → “2” Position, AT- 3 1 9 .
❏ Engine Speed Does Not Return To Idle (Engine Brake In 2
2 ),AT-315 .
❏ A/T Does Not Shift: 2
2 → 11 , When Selector Lever “2” → “1” Position, AT-320 .
❏ Vehicle Does Not Decelerate By Engine Brake, AT- 3 2 2
.
❏ TCM Self-diagnosis Does Not Activate (PNP & Overdrive Control Switches, and throttle position sensor
Circuit Checks), AT-324
.
❏ SELF-DIAGNOSTIC PROCEDURE — Mark detected items.
❏ Vehicle speed sensor·A/T (Revolution sensor), AT-332
.
❏ Vehicle speed sensor·MTR, AT- 3 3 9
.
❏ Accelerator pedal position (APP) sensor, AT-345
.
❏ Shift solenoid valve A, AT-350
.
❏ Shift solenoid valve B, AT-356
.
❏ Overrun clutch solenoid valve, AT-362
.
❏ Torque converter clutch solenoid valve, AT- 3 6 8
.
❏ Batt/fluid temp sen (A/T fluid temperature sensor and TCM power source), AT-374
.
❏ Engine speed signal, AT-382
.
❏ Line pressure solenoid valve, AT-387
.
❏ CAN communication line, AT-329
.
❏ Control unit (RAM), control unit (ROM), AT- 1 9 8
.
❏ Control unit (EEP ROM), AT- 2 0 0
.
❏ PNP & overdrive control switches, and throttle position sensor, AT- 3 2 4
.
❏ Battery
❏ Others
5.❏ For self-diagnosis NG items, inspect each component. Repair or replace the damaged parts.AT-246
6.❏ Perform all Road Test and re-mark required procedures.AT-262
7.❏ Perform the Diagnostic Procedures for all remaining items marked NG. Repair or replace the damaged parts.
Refer to the Symptom Chart when you perform the procedures. (The chart also shows some other possible
symptoms and the component inspection orders.)AT-277
8.❏ Erase self-diagnosis code from TCM memories.AT-245, AT-
250

TROUBLE DIAGNOSIS — GENERAL DESCRIPTION
AT-277
[EXC.F/EURO-OBD]
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TROUBLE DIAGNOSIS — GENERAL DESCRIPTIONPFP:00000
Symptom ChartECS004VV
Numbers are arranged in order of inspection.
Perform inspections starting with number one and work up.
Symptom Condition Diagnostic Item Reference Page
Engine cannot start in “P” and “N”
positions.
AT- 2 9 3
ON vehicle1. Ignition switch and starterPG-2
,
SC-21

2. Control cable adjustmentAT- 4 0 9
3. PNP switchAT- 3 2 4
Engine starts in position other than
“N” and “P” positions.
AT- 2 9 3
ON vehicle1. Control cable adjustmentAT- 4 0 92. PNP switchAT- 3 2 4
Transaxle noise in “P” and “N” posi-
tions.ON vehicle1. Fluid levelAT- 2 5 6
2. Line pressure testAT- 2 6 0
3. Accelerator pedal position (APP) sensorAT- 3 4 5
4. Vehicle speed sensor·A/T (Revolution
sensor) and vehicle speed sensor·MTRAT- 3 3 2,
AT- 3 3 9
OFF vehicle5. Oil pumpAT- 4 4 36. Torque converterAT- 4 2 3
Vehicle moves when changing into “P”
position, or parking gear does not dis-
engage when shifted out of “P” posi-
tion.
AT- 2 9 4ON vehicle 1. Control cable adjustmentAT- 4 0 9
OFF vehicle 2. Parking componentsAT- 4 1 6,
AT- 4 4 0
Vehicle runs in “N” position.
AT- 2 9 5
ON vehicle 1. Control cable adjustmentAT- 4 0 9
OFF vehicle2. Forward clutchAT- 4 7 53. Reverse clutchAT- 4 6 4
4. Overrun clutchAT- 4 7 5
Vehicle will not run in “R” position (but
runs in “D”, “2” and “1” positions).
Clutch slips.
Very poor acceleration.
AT- 2 9 7
ON vehicle1. Control cable adjustmentAT- 4 0 9
2. Stall testAT- 2 5 7
3. Line pressure testAT- 2 6 0
4. Line pressure solenoid valveAT- 3 8 7
5. Control valve assemblyAT- 4 0 4
Vehicle will not run in “R” position (but
runs in “D”, “2” and “1” positions).
Clutch slips.
Very poor acceleration.
AT- 2 9 7
OFF vehicle6. Reverse clutchAT- 4 6 4
7. High clutchAT- 4 6 9
8. Forward clutchAT- 4 7 5
9. Overrun clutchAT- 4 7 5
10. Low & reverse brakeAT- 4 8 3
Vehicle braked when shifting into “R”
position.ON vehicle1. Fluid levelAT- 2 5 6
2. Line pressure testAT- 2 6 0
3. Line pressure solenoid valveAT- 3 8 7
4. Control valve assemblyAT- 4 0 4
OFF vehicle5. High clutchAT- 4 6 96. Brake bandAT- 4 9 7
7. Forward clutchAT- 4 7 5
8. Overrun clutchAT- 4 7 5

AT-278
[EXC.F/EURO-OBD]
TROUBLE DIAGNOSIS — GENERAL DESCRIPTION

Sharp shock in shifting from “N” to “D”
position.ON vehicle1. Engine idling rpmEC-506
2. Accelerator pedal position (APP) sensorAT-345
3. Line pressure testAT-260
4. A/T fluid temp sen circ and TCM pow
sourAT-374
5. Engine speed signalAT-382
6. Line pressure solenoid valveAT-387
7. Control valve assemblyAT-404
8. Accumulator N-DAT-404
OFF vehicle 9. Forward clutchAT-475
Vehicle will not run in “D” and “2” posi-
tions (but runs in “1” and “R” posi-
tions).ON vehicle 1. Control cable adjustmentAT-409
OFF vehicle 2. Low one-way clutchAT-416,
AT-423
Vehicle will not run in “D”, “1”, “2” posi-
tions (but runs in “R” position). Clutch
slips. Very poor acceleration.
AT- 2 9 9
ON vehicle1. Fluid levelAT-256
2. Stall testAT-257
3. Line pressure testAT-260
4. Line pressure solenoid valveAT-387
5. Control valve assemblyAT-404
6. Accumulator N-DAT-404
Vehicle will not run in “D”, “1”, “2” posi-
tions (but runs in “R” position). Clutch
slips. Very poor acceleration.
AT- 2 9 9
OFF vehicle7. Reverse clutch AT-464
8. High clutchAT-469
9. Forward clutchAT-475
10. Forward one-way clutchAT-416
11. Low one-way clutchAT-416,
AT-423
Clutches or brakes slip somewhat in
starting.ON vehicle1. Fluid levelAT-256
2. Control cable adjustmentAT-409
3. Accelerator pedal position (APP) sensorAT-345
4. Line pressure testAT-260
5. Line pressure solenoid valveAT-387
6. Control valve assemblyAT-404
7. Accumulator N-DAT-404
8. Shift solenoid valve AAT-350
9. Shift solenoid valve BAT-356
10. Overrun clutch solenoid valveAT-362
11. Torque converter clutch solenoid valveAT-368
OFF vehicle12. Forward clutchAT-475
13. Reverse clutchAT-464
14. Low & reverse brakeAT-483
15. Oil pumpAT-443
16. Torque converterAT-423
Excessive creep. ON vehicle 1. Engine idling rpmEC-506
Symptom Condition Diagnostic Item Reference Page

TROUBLE DIAGNOSIS — GENERAL DESCRIPTION
AT-279
[EXC.F/EURO-OBD]
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No creep at all.
AT- 2 9 7
and AT-299
ON vehicle1. Fluid levelAT- 2 5 62. Line pressure testAT- 3 8 7
3. Control valve assemblyAT- 4 0 4
OFF vehicle4. Forward clutchAT- 4 7 55. Oil pumpAT- 4 4 3
6. Torque converterAT- 4 2 3
Failure to change gear from “D1 ” to
“D
2 ”.ON vehicle1. Control cable adjustmentAT- 4 0 9
2. Shift solenoid valve AAT- 3 5 0
3. Control valve assemblyAT- 4 0 4
4. Vehicle speed sensor·A/T (Revolution
sensor) and vehicle speed sensor·MTRAT- 3 3 2, AT-339
5. Accelerator pedal position (APP) sensorAT- 3 4 5
OFF vehicle 6. Brake bandAT- 4 9 7
Failure to change gear from “D2 ” to
“D
3 ”.ON vehicle1. Control cable adjustmentAT- 4 0 9
2. Shift solenoid valve BAT- 3 5 6
3. Control valve assemblyAT- 4 0 4
4. Vehicle speed sensor·A/T (Revolution
sensor) and vehicle speed sensor·MTRAT- 3 3 2, AT-339
5. Accelerator pedal position (APP) sensorAT- 3 4 5
OFF vehicle6. High clutchAT- 4 6 97. Brake bandAT- 4 9 7
Failure to change gear from “D3 ” to
“D
4 ”.ON vehicle1. PNP switchAT- 3 2 4
2. Overrun clutch solenoid valveAT- 3 6 2
3. Shift solenoid valve AAT- 3 5 0
4. Vehicle speed sensor·A/T (Revolution
sensor) and vehicle speed sensor·MTRAT- 3 3 2, AT-339
5. A/T fluid temp sen circ and TCM pow
sourAT- 3 7 4
OFF vehicle 6. Brake bandAT- 4 9 7
Too high a gear change point from “D1
” to “D
2 ”, from “D2 ” to “D3 ”, from “D3
” to “D
4 ”.
AT- 3 0 4
and AT-309
ON 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. Shift solenoid valve AAT- 3 5 0
4. Shift solenoid valve BAT- 3 5 6
Gear change directly from “D1 ” to “D3
” occurs.ON vehicle1. Fluid levelAT- 2 5 62. Accumulator servo releaseAT- 4 0 4
OFF vehicle 3. Brake bandAT- 4 9 7
Engine stops when shifting lever into
“R”, “D”, “2” and “1”.ON vehicle1. Engine idling rpmEC-506
2. Fluid levelAT- 2 5 6
3. Torque converter clutch solenoid valveAT- 3 6 8
4. Control valve assemblyAT- 4 0 4
OFF vehicle 5. Torque converterAT- 4 2 3
Symptom Condition Diagnostic Item Reference Page