2001 NISSAN X-TRAIL check engine

TROUBLE DIAGNOSES FOR SYMPTOMS
AT-333
[EXC.F/EURO-OBD]
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A/T Does Not Hold Lock-up ConditionECS004VE
SYMPTOM:
A/T does not hold lock-up condition for more than 30 seconds.
1.CHECK DIAGNOSTIC RESULTS
Does self-diagnosis show damage to engine speed signal circuit
after cruise test?
Ye s o r N o
Yes >> Check engine speed signal circuit. Refer to AT- 3 9 2 ,
"ENGINE SPEED SIGNAL" (Except for Euro-OBD).
No >> GO TO 2.
2.CHECK A/T FLUID CONDITION
1. Remove oil pan.
2. Check A/T fluid condition.
OK or NG
OK >> GO TO 3.
NG >> GO TO 5.
3.DETECT MALFUNCTIONING ITEM
1. Remove control valve assembly. Refer to AT- 4 1 3 , "
Installation" .
2. Check the following items:
–Torque converter clutch control valve
–Pilot valve
–Pilot filter
OK or NG
OK >> GO TO 4.
NG >> Repair or replace damaged parts.
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.
SCIA0773E
SAT171B

AT-336
[EXC.F/EURO-OBD]
TROUBLE DIAGNOSES FOR SYMPTOMS
Engine Speed Does Not Return To Idle (Light Braking D
4→ D3 )ECS004VG
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-
377, "OVERRUN CLUTCH SOLENOID VALVE"
(Except for Euro-OBD).
No >> GO TO 2.
2. CHECK ACCELERATOR PEDAL POSITION (APP) SENSOR
Check accelerator pedal position (APP) sensor. Refer to AT- 3 6 2 ,
"ACCELE RATOR PEDAL POSITION (APP) SENSOR" —Except for
Euro-OBD.
OK or NG
OK >> GO TO 3.
NG >> Repair or replace accelerator pedal position (APP) sen-
sor.
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

TROUBLE DIAGNOSES FOR SYMPTOMS
AT-343
[EXC.F/EURO-OBD]
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Vehicle Does Not Decelerate By Engine BrakeECS004VL
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- 3 4 4 , "TCM Self-
diagnosis Does Not Activate" .
No >> GO TO 2
2.CHECK CONTROL CABLE
Check control cable. Refer to AT-416, "
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-358, "DTC VEHICLE SPEED SENSOR
MTR" (Except for 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

TROUBLE DIAGNOSES FOR SYMPTOMS
AT-345
[EXC.F/EURO-OBD]
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DESCRIPTION
●PNP switch
The PNP switch assembly includes a transmission position
switch. The transmission position switch detects the selector
lever position and sends a signal to the TCM.
●Overdrive control switch
Detects the overdrive control switch position (ON or OFF) and
sends a signal to the TCM.
●Closed throttle position signal and wide-open throttle position
signal
ECM judges throttle opening based on a signal from accelerator
pedal position sensor, and sends the signal via CAN communi-
cation to TCM.
DIAGNOSTIC PROCEDURE
1.CHECK PNP SWITCH CIRCUIT (WITH CONSULT-II)
With CONSULT-II
1. Turn ignition switch to “ON” position.
(Do not start engine.)
2. Select “TCM INPUT SIGNALS” in “DATA MONITOR” mode for “A/T” with CONSULT-II.
3. Read out “P/N”, “R”, “D”, “2” and “1” position switches moving selector lever to each position.
Check that the signal of the selector lever position is indicated
properly.
OK or NG
OK >> GO TO 3.
NG >> Check the following items:
●PNP switch (Refer to AT- 3 4 9 , "COMPONENT
INSPECTION" .)
●Harness for short or open between ignition switch and
PNP switch
●Harness for short or open between PNP switch and
TCM
●Diode (P, N positions)
SCIA0752E
SCIA0776E
PBIB0498E
SAT701J

AT-346
[EXC.F/EURO-OBD]
TROUBLE DIAGNOSES FOR SYMPTOMS
2. CHECK PNP SWITCH CIRCUIT (WITHOUT CONSULT-II)
Without CONSULT-II
1. Turn ignition switch to “ON” position. (Do not start engine.)
2. Check voltage between TCM terminals 26, 27, 34, 35, 36 and
ground while moving selector lever through each position.
OK or NG
OK >> GO TO 4.
NG >> Check the following items:
●PNP switch (Refer to AT- 3 4 9 , "COMPONENT
INSPECTION" .)
●Harness for short or open between ignition switch and
PNP switch
●Harness for short or open between PNP switch and TCM
●Diode (P, N positions)
3. CHECK OVERDRIVE CONTROL SWITCH CIRCUIT (WITH CONSULT-II)
With CONSULT-II
1. Turn ignition switch to “ON” position.
(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 5.
NG >> Check the following items:
●Overdrive control switch (Refer to AT- 3 4 9 , "COMPO-
NENT INSPECTION" .)
●Harness for short or open between TCM and over-
drive control switch
●Harness of ground circuit for overdrive control switch
for short or open Voltage:
B: Battery voltage
0: 0V
Lever positionTerminal No.
36 35 34 27 26
P, N B 0 0 0 0
R0B000
D00B00
2000B0
10000B
SCIA0777E
SAT645J

TROUBLE DIAGNOSES FOR SYMPTOMS
AT-347
[EXC.F/EURO-OBD]
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4.CHECK OVERDRIVE CONTROL SWITCH CIRCUIT (WITHOUT CONSULT-II)
Without CONSULT-II
1. Turn ignition switch to “ON” position.
(Do not start engine.)
2. Check voltage between TCM terminal 22 and ground when overdrive control switch is “ON” and “OFF”.
OK or NG
OK >> GO TO 6.
NG >> Check the following items:
●Overdrive control switch (Refer to “Component Inspection”, AT- 3 4 9 , "COMPONENT INSPEC-
TION" .)
●Harness for short or open between TCM and overdrive control switch
●Harness of ground circuit for overdrive control switch for short or open Vo l t a g e :
Switch position “ON”: Battery voltage
Switch position “OFF”: 1V or less
SCIA0778E

AT-348
[EXC.F/EURO-OBD]
TROUBLE DIAGNOSES FOR SYMPTOMS
5. CHECK CLOSED THROTTLE POSITION AND WIDE OPEN THROTTLE POSITION SIGNAL CIRCUIT
(WITH CONSULT-II)
With CONSULT-II
1. Turn ignition switch to “ON” position.
(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 7.
NG >> Check the following items. If any items are damaged, repair or replace damaged parts.
●Accelerator pedal position sensor — Refer to AT- 3 6 2 , "ACCELE RATOR PEDAL POSITION
(APP) SENSOR" .
●Harness for short or open between accelerator pedal position sensor and ECM
6. 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- 3 6 2 , "ACCELE RATOR PEDAL POSITION (APP) SEN-
SOR" .
●Harness for short or open between accelerator pedal position sensor and ECM
OK or NG
OK >> GO TO 7.
NG >> Repair or replace damaged parts.
7. CHECK DTC
Perform “SELF-DIAGNOSTIC PROCEDURE (WITHOUT CONSULT-II)”. Refer to AT- 2 5 3 , "
SELF-DIAGNOS-
TIC PROCEDURE (WITHOUT CONSULT-II)" .
OK or NG
OK >>INSPECTION END
NG >>
●Perform TCM input/output signal inspection.
●If NG, recheck TCM pin terminals for damage or loose connection with harness connector.
Accelerator pedal
conditionData monitor
CLOSED THL/SW W/O THRL-SW
Released ON OFF
Fully depressed OFF ON
SAT646J

MAIN POWER SUPPLY AND GROUND CIRCUIT
AT-351
[ALL]
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TCM TERMINALS AND REFERENCE VALUE
Remarks: Specification data are reference values.
Diagnostic ProcedureECS004TI
1.CHECK TCM POWER SOURCE STEP 1
1. Turn ignition switch to ON position.
(Do not start engine.)
2. Check voltage between TCM terminals 10, 19, 28 and ground.
OK or NG
OK >> GO TO 2
NG >> GO TO 3
2.CHECK TCM POWER SOURCE STEP 2
1. Turn ignition switch to OFF position.
2. Check voltage between TCM terminal 28 and ground.
OK or NG
OK >> GO TO 4
NG >> GO TO 3
Te r m i -
nal No.Wire color Item ConditionJudgement stan-
dard
(Approx.)
10 BR/W Power source
or When turning ignition switch to “ON”. Battery voltage
When turning ignition switch to
“OFF”.0V
19 BR/W Power source Same as No. 10
25 B/W Ground — — —
28 R/BPower source
(Memory back-up)
or When turning ignition switch to
“OFF”.Battery voltage
When turning ignition switch to “ON”. Battery voltage
48 B/W Ground — — —
SCIA0713E
SCIA0714E