2001 NISSAN X-TRAIL ignition

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

AT-352
[ALL]
MAIN POWER SUPPLY AND GROUND CIRCUIT
3. DETECT MALFUNCTIONING ITEM
Check the following items:
●Harness for short or open between ignition switch and TCM terminals 10, 19 and 28
●Fuse
●Ignition switch
Refer to “PG-2, "
POWER SUPPLY ROUTING" , “POWER SUPPLY ROUTING”.
OK or NG
OK >> GO TO 4
NG >> Repair or replace damaged parts.
4. CHECK TCM GROUND CIRCUIT
1. Turn ignition switch to OFF position.
2. Disconnect TCM harness connector.
3. Check continuity between TCM terminals 25, 48 and ground. Refer to wiring diagram — AT — MAIN.
If OK, check harness for short to ground and short to power.
OK or NG
OK >>INSPECTION END
NG >> Repair open circuit or short to ground or short to power in harness or connectors. Continuity should exist.

AT-356
[ALL]
VEHICLE SPEED SENSOR·A/T (REVOLUTION SENSOR)
Diagnostic Procedure
ECS004TL
1. CHECK INPUT SIGNAL (WITH CONSULT-II)
With CONSULT-II
1. Start engine.
2. Select “TCM INPUT SIGNALS” in “DATA MONITOR” mode for
“A/T” with CONSULT-II.
3. Read out the value of “VHCL/S SE·A/T” while driving.
Check the value changes according to driving speed.
OK or NG
OK >> GO TO 3.
NG >> GO TO 2.
2. CHECK REVOLUTION SENSOR (WITH CONSULT-II)
With CONSULT-II
1. Start engine.
●Harness for short or open between TCM, ECM and revolution sensor
●Harness for short or open between ignition switch and revolution sensor
OK or NG
OK >> GO TO 3.
NG >> Repair or replace damaged parts.
SAT014K
SAT614J
MTBL0575

AT-362
[ALL]
ACCELE RATOR PEDAL POSITION (APP) SENSOR
ACCELE RATOR PEDAL POSITION (APP) SENSOR
PFP:22620
DescriptionECS004TP
●Accelerator pedal position (APP) sensor
Electric throttle control actuator consists of throttle control motor,
acceleration pedal position sensor, throttle position sensor, etc.
The actuator sends a signal to the TCM.
CONSULT-II REFERENCE VALUE IN DATA MONITOR MODE
Remarks: Specification data are reference values.
TCM TERMINALS AND REFERENCE VALUE
Remarks: Specification data are reference values.
ON BOARD DIAGNOSIS LOGIC
*:This code means Accelerator pedal position (APP) sensor in reality.
PBIB0498E
Monitor item Condition Specification
Accelerator pedal position (APP) sensor
(THRTL POS SEN)Fully-closed throttle Approximately 0.5V
Fully-open throttle Approximately 4V
Termi-
nal No.Wire color Item ConditionJudgement stan-
dard
(Approx.)
32 RThrottle position
sensor
(Power source)
or When turning ignition switch “ON”. 4.5 - 5.5V
When turning ignition switch “OFF”. 0V
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 throttle:
4V
42 BGround
(Throttle position
sensor)———
Diagnostic trouble code Malfunction is detected when... Check items (Possible cause)
: THROTTLE POSI SEN*
TCM receives an excessively low or high
voltage from the sensor.
●Harness or connectors
(The sensor circuit is open or shorted.)
●Accelerator pedal position (APP) sensor
: 3rd judgement flicker