NISSAN X-TRAIL 2003 Electronic Repair Manual

TROUBLE DIAGNOSES FOR SYMPTOMS
AT-235
[EURO-OBD]
D
E
F
G
H
I
J
K
L
MA
B
AT
Vehicle moves forward or backward when selecting “N” position.
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 “21. TCM Self-diag-
nosis Does Not Activate (PNP& Overdrive Control
Switches, and Throttle Position sensor Circuit Checks)”,
AT-260, "
21. TCM Self-diagnosis Does Not Activate
(PNP & Overdrive Control Switches, and Throttle Posi-
tion Sensor Circuit Checks)".
No >> GOTO2
2.CHECK CONTROL CABLE
Check control cable. Refer toAT-456, "
Control Cable Adjustment".
OK or NG
OK >> GOTO3
NG >> Adjust control cable. Refer toAT- 4 5 6 , "
Control Cable
Adjustment".
3.CHECK A/T FLUID LEVEL
Check A/T fluid level again.
OK or NG
OK >> GOTO4
NG >> Refill ATF.
SCIA0706E
SAT023JB
SAT638A

AT-236
[EURO-OBD]
TROUBLE DIAGNOSES FOR SYMPTOMS
4.CHECK A/T FLUID CONDITION
1. Remove oil pan.
2. Check A/T fluid condition.
OK or NG
OK >> GOTO5
NG >> 1. Disassemble A/T.
2. Check the following items:
–Forwardclutchassembly
–Overrunclutchassembly
–Reverse clutch assembly
5.CHECK SYMPTOM
Check again.
OK or NG
OK >>INSPECTION END
NG >> 1. Perform TCM input/output signal inspection.
2. If NG, recheck TCM pin terminals for damage or loose connection with harness connector.
5. Large Shock. “N”®“R” PositionECS004SY
SYMPTOM:
There is large shock when changing from “N” to “R” position.
1.CHECK SELF-DIAGNOSTIC RESULTS
Does self-diagnosis show damage to A/T fluid temperature sensor,
line pressure solenoid valve or throttle position sensor circuit?
Ye s o r N o
Ye s > >lCheck damaged circuit. Refer to the following items.
Except for Euro-OBD
–LINE PRESSURE SOLENOID VALVE:AT-436, "LINE
PRESSURE SOLENOID VALVE"
–THROTTLE POSITION SENSOR:AT-401, "ACCELE
RATOR PEDAL POSITION (APP) SENSOR"
–BATT/FLUID TEMP SEN (A/T FLUID TEMP SEN-
SOR CIRCUIT AND TCM POWER SOURCE:AT-
426, "BATT/FLUID TEMP SEN (A/T FLUID TEMP SENSOR CIRCUIT AND TCM POWER
SOURCE)"
Euro-OBD
–LINE PRESSURE SOLENOID VALVE:AT-186, "DTC P0745 LINE PRESSURE SOLENOID
VA LV E"
–THROTTLE POSITION SENSOR:AT-203, "DTC P1705 ACCELERATOR PEDAL POSITION
(APP) SENSOR"
–BATT/FLUID TEMP SEN (A/T FLUID TEMP SENSOR CIRCUIT AND TCM POWER SOURCE:
AT - 2 1 6 , "
DTC BATT/FLUID TEMP SEN (A/T FLUID TEMP SENSOR CIRCUIT AND TCM
POWER SOURCE)"
No >> GOTO2
SAT171B
SCIA0769E

TROUBLE DIAGNOSES FOR SYMPTOMS
AT-237
[EURO-OBD]
D
E
F
G
H
I
J
K
L
MA
B
AT
2.CHECK THROTTLE POSITION SENSOR*
*: This sensor means accelerator pedal position (APP) sensor.
Check throttle position sensor. Refer to "EC-´´",
“DTC P0121 ACCELERATOR PEDAL POSITION(APP)SENSOR".
—Except for Euro-OBD
"EX-´´, "DTC P0121ACCELERATOR PEDAL POSI-
TION(APP)SENSOR".—Euro-OBD
OK or NG
OK >> GOTO3
NG >> Repair or replaceAccelerator pedal position(APP)sen-
sor.
3.CHECK LINE PRESSURE
Check line pressure at idle with selector lever in “D” position. Refer
toAT-68, "
Line Pressure Test".
OK or NG
OK >> GOTO4
NG >> 1. Remove control valve assembly. Refer toAT-453,
"Installation".
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
4.CHECK SYMPTOM
Check again.
OK or NG
OK >>INSPECTION END
NG >> 1. Perform TCM input/output signal inspection.
2. If NG, recheck TCM pin terminals for damage or loose connection with harness connector.
6. Vehicle Does Not Creep Backward In “R” PositionECS004SZ
SYMPTOM:
Vehicle does not creep backward when selecting “R” position.
1.CHECK A/T FLUID LEVEL
Check A/T fluid level again.
OK or NG
OK >> GOTO2
NG >> Refill ATF.
PBIB0498E
SAT494G
SAT638A

AT-238
[EURO-OBD]
TROUBLE DIAGNOSES FOR SYMPTOMS
2.CHECK STALL TEST
Check stall revolution with selector lever in “1” and “R” positions.
Refer toAT-65, "
Stall Te st".
OK or NG
OK >> GOTO3
OK in “1” position, NG in “R” position>>1.Remove control valve
assembly. Refer to “ON-VEHICLE SERVICE”,AT-
453, "Installation".
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 (AT-436, "LINE PRES-
SURE SOLENOID VALVE": Except for Euro-OBDAT-186, "DTC P0745 LINE PRESSURE
SOLENOID VALVE": Euro-OBD)
3. Disassemble A/T.
4. Check the following items:
–Oil pump assembly
–Torque converter
–Reverse clutch assembly
–High clutch assembly
–Low & reverse brake assembly
–Low one-way clutch
NG in both “1” and “R” positions>>GOTO6
3.CHECK LINE PRESSURE
Check line pressure at idle with selector lever in “R” position. Refer
to “Line Pressure Test”,AT-68, "
Line Pressure Test".
OK or NG
OK >> GOTO4
NG >> 1. Remove control valve assembly. Refer to “ON-VEHI-
CLE SERVICE”,AT-453, "
Installation".
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 (AT-436, "LINE PRES-
SURE SOLENOID VALVE": Except for Euro-OBD/AT-186, "DTC P0745 LINE PRESSURE
SOLENOID VALVE": Euro-OBD)
3. Disassemble A/T.
4. Check the following item:
–Oil pump assembly
SAT493G
SAT494G

TROUBLE DIAGNOSES FOR SYMPTOMS
AT-239
[EURO-OBD]
D
E
F
G
H
I
J
K
L
MA
B
AT
4.CHECKA/TFLUIDCONDITION
1. Remove oil pan.
2. Check A/T fluid condition.
OK or NG
OK >> GOTO5
NG >> GOTO6
5.CHECK SYMPTOM
Check again.
OK or NG
OK >>INSPECTION END
NG >> 1. Perform TCM input/output signal inspection.
2. If NG, recheck TCM pin terminals for damage or loose connection with harness connector.
6.DETECT MALFUNCTIONING ITEM
1. Remove control valve assembly. Refer to “ON-VEHICLE SERVICE”,AT-453, "
Installation".
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 (AT- 4 3 6 , "LINE PRESSURE SOLENOID VALVE": Except for Euro-OBD/AT-
186, "DTC P0745 LINE PRESSURE SOLENOID VALVE":Euro-OBD)
3. Disassemble A/T.
4. Check the following items:
–Oil pump assembly
–Torque converter
–Reverse clutch assembly
–High clutch assembly
–Low & reverse brake assembly
–Low one-way clutch
OK or NG
OK >> GOTO5
NG >> Repair or replace damaged parts.
SAT171B

AT-240
[EURO-OBD]
TROUBLE DIAGNOSES FOR SYMPTOMS
7. Vehicle Does Not Creep Forward In “D”, “2” Or “1” Position
ECS004T0
SYMPTOM:
Vehicle does not creep forward when selecting “D”, “2” or “1” position.
1.CHECK A/T FLUID LEVEL
Check A/T fluid level again.
OK or NG
OK >> GOTO2
NG >> Refill ATF.
2.CHECK STALL TEST
Check stall revolution with selector lever in “D” position. Refer to
“Stall Test”,AT - 6 5 , "
Stall Test".
OK or NG
OK >> GOTO3
NG >> GOTO6
3.CHECK LINE PRESSURE
Check line pressure at idle with selector lever in “D” position. Refer
to “Line Pressure Test ”,AT-68, "
Line Pressure Test".
OK or NG
OK >> GOTO4
NG >> 1. Remove control valve assembly. Refer toAT-453,
"Installation".
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 (AT-436, "LINE PRES-
SURE SOLENOID VALVE": Except for Euro-OBD/AT-186, "DTC P0745 LINE PRESSURE
SOLENOID VALVE": Euro-OBD)
3. Disassemble A/T.
4. Check the following item:
–Oil pump assembly
SAT638A
SAT493G
SAT494G

TROUBLE DIAGNOSES FOR SYMPTOMS
AT-241
[EURO-OBD]
D
E
F
G
H
I
J
K
L
MA
B
AT
4.CHECKA/TFLUIDCONDITION
1. Remove oil pan.
2. Check A/T fluid condition.
OK or NG
OK >> GOTO5
NG >> GOTO6
5.CHECK SYMPTOM
Check again.
OK or NG
OK >>INSPECTION END
NG >> 1. Perform TCM input/output signal inspection.
2. If NG, recheck TCM pin terminals for damage or loose connection with harness connector.
6.DETECT MALFUNCTIONING ITEM
1. Remove control valve assembly. Refer toAT-453, "
Installation".
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 (AT- 4 3 6 , "LINE PRESSURE SOLENOID VALVE": Except for Euro-OBD/AT-
186, "DTC P0745 LINE PRESSURE SOLENOID VALVE":Euro-OBD)
3. Disassemble A/T.
4. Check the following items:
–Oil pump assembly
–Forwardclutchassembly
–Forward one-way clutch
–Low one-way clutch
–Low & reverse brake assembly
–Torque converter
OK or NG
OK >> GOTO5
NG >> Repair or replace damaged parts.
SAT171B

AT-242
[EURO-OBD]
TROUBLE DIAGNOSES FOR SYMPTOMS
8. Vehicle Cannot Be Started From D
1ECS004T1
SYMPTOM:
Vehicle cannot be started from D
1on Cruise test — Part 1.
1.CHECK SYMPTOM
Is 6. Vehicle Does Not Creep Backward In “R” Position OK?
Ye s o r N o
Yes >> GOTO2
No >> Go to 6. Vehicle Does Not Creep Backward In “R” Position,AT - 2 3 7 , "
6. Vehicle Does Not Creep
Backward In“R”Position".
2.CHECK SELF-DIAGNOSTIC RESULTS
Does self-diagnosis show damage to vehicle speed sensor·A/T (rev-
olution sensor), shift solenoid valve A, B or vehicle speed sen-
sor·MTR after cruise test?
Ye s o r N o
Ye s > >lCheck damaged circuit. Refer to the following items.
Except for Euro-OBD
–VEHICLE SPEED SENSOR A/T (REVOLUTION
SENSOR):AT-392, "
VEHICLE SPEED SENSOR·A/T
(REVOLUTION SENSOR)"
–SHIFT SOLENOID VALVE A:AT-406, "SHIFT SOLE-
NOID VALVE A"
–SHIFT SOLENOID VALVE B:AT- 4 11 , "SHIFT SOLENOID VALVE B"
–VHCL SPEED SEN·MTR VEHICLE SPEED SENSOR·MTR:AT - 3 9 7 , "DTC VEHICLE SPEED
SENSOR MTR"
Euro-OBD
–VEHICLE SPEED SENSOR A/T (REVOLUTION SENSOR):AT-142, "DTC P0720 VEHICLE
SPEED SENSOR·A/T (REVOLUTION SENSOR)"
–SHIFT SOLENOID VALVE A:AT-193, "DTC P0750 SHIFT SOLENOID VALVE A"
–SHIFT SOLENOID VALVE B:AT-198, "DTC P0755 SHIFT SOLENOID VALVE B"
–VHCL SPEED SEN·MTR VEHICLE SPEED SENSOR·MTR: $$$$$
No >> GOTO3
3.CHECK THROTTLE POSITION SENSOR*
*: This sensor means accelerator pedal position (APP) sensor.
Check throttle position sensor. Refer to "EC-´´", “DTC P0121
ACCELERATOR PEDAL POSITION(APP)SENSOR”. —Except for
Euro-OBD/Refer to "EC-´´", “DTC P0121 ACCELERATOR PEDAL
POSITION(APP)SENSOR”. — Euro-OBD
OK or NG
OK >> GOTO4
NG >> Repair or replace accelerator pedal position (app) sen-
sor.
SCIA0770E
PBIB0498E

TROUBLE DIAGNOSES FOR SYMPTOMS
AT-243
[EURO-OBD]
D
E
F
G
H
I
J
K
L
MA
B
AT
4.CHECK LINE PRESSURE
Check line pressure at stall point with selector lever in “D” position.
Refer to “Line Pressure Test”,AT-68, "
Line Pressure Test".
OK or NG
OK >> GOTO5
NG >> GOTO8
5.CHECKA/TFLUIDCONDITION
1. Remove oil pan.
2. Check A/T fluid condition.
OK or NG
OK >> GOTO6
NG >> GOTO8
6.DETECT MALFUNCTIONING ITEM
1. Remove control valve assembly. Refer to $$$$$.
2. Check the following items:
–Shift valve A
–Shift valve B
–Shift solenoid valve A
–Shift solenoid valve B
–Pilot valve
–Pilot filter
OK or NG
OK >> GOTO7
NG >> Repair or replace damaged parts.
7.CHECK SYMPTOM
Check again.
OK or NG
OK >>INSPECTION END
NG >> 1. Perform TCM input/output signal inspection.
2. If NG, recheck TCM pin terminals for damage or loose connection with harness connector.
SAT494G
SAT171B

AT-244
[EURO-OBD]
TROUBLE DIAGNOSES FOR SYMPTOMS
8.DETECT MALFUNCTIONING ITEM
1. Remove control valve assembly. Refer toAT-453, "
Installation".
2. Check the following items:
–Shift valve A
–Shift valve B
–Shift solenoid valve A
–Shift solenoid valve B
–Pilot valve
–Pilot filter
3. Disassemble A/T.
4. Check the following items:
–Forward clutch assembly
–Forward one-way clutch
–Low one-way clutch
–High clutch assembly
–Torque converter
–Oil pump assembly
OK or NG
OK >> GOTO7
NG >> Repair or replace damaged parts.
9. A/T Does Not Shift: D1®D2Or Does Not Kickdown: D4®D2ECS004T2
SYMPTOM:
A/T does not shift from D
1to D2at the specified speed.
A/T does not shift from D
4to D2when depressing accelerator pedal fully at the specified speed.
1.CHECK SYMPTOM
Are 7. Vehicle Does Not Creep Forward In “D”, “2” Or “1” Position and 8. Vehicle Cannot Be Started From D
1
OK?
Ye s o r N o
Yes >> GOTO2
No >> Go to 7. Vehicle Does Not Creep Forward In “D”, “2” Or “1” Position and 8. Vehicle Cannot Be
Star ted F ro m D
1,AT-240, "7. Vehicle Does Not Creep Forward In“D”,“2”Or“1”Position",AT -
242, "8. Vehicle Cannot Be Started From D1".
2.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 “21. TCM Self-diag-
nosis Does Not Activate (PNP & Overdrive Control,
switches, and Throttle Position sensor Circuit Checks)”,
AT-260, "
21. TCM Self-diagnosis Does Not Activate
(PNP & Overdrive Control Switches, and Throttle Posi-
tion Sensor Circuit Checks)".
No >> GOTO3
SCIA0706E