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![NISSAN X-TRAIL 2001 Service Repair Manual BATT/FLUID TEMP SEN (A/T FLUID TEMP SENSOR CIRCUIT AND TCM POW-
ER SOURCE)
AT-387
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ON BOARD DIAGNOSIS LOGIC
SELF-DIAGNOSIS CODE CONFIRMATION PROCEDURE
After the repair, NISSAN X-TRAIL 2001 Service Repair Manual BATT/FLUID TEMP SEN (A/T FLUID TEMP SENSOR CIRCUIT AND TCM POW-
ER SOURCE)
AT-387
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ON BOARD DIAGNOSIS LOGIC
SELF-DIAGNOSIS CODE CONFIRMATION PROCEDURE
After the repair,](/manual-img/5/57405/w960_57405-2464.png)
BATT/FLUID TEMP SEN (A/T FLUID TEMP SENSOR CIRCUIT AND TCM POW-
ER SOURCE)
AT-387
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ON BOARD DIAGNOSIS LOGIC
SELF-DIAGNOSIS CODE CONFIRMATION PROCEDURE
After the repair, perform the following procedure to confirm the malfunction is eliminated.
With CONSULT-II
1. Start engine.
2. Select “SELF-DIAG RESULTS” mode for A/T with CONSULT-II.
3. Drive vehicle under the following conditions:
Selector lever in “D” position, vehicle speed higher than 10 km/h
(6 MPH), throttle opening greater than 1/8 of the full open posi-
tion, engine speed higher than 450 rpm and driving for more
than 10 minutes.
Without CONSULT-II
1. Start engine.
2. Drive vehicle under the following conditions:
Selector lever in “D” position, vehicle speed higher than 10 km/h
(6 MPH), throttle opening greater than 1/8 of the full open posi-
tion, engine speed higher than 450 rpm and driving for more
than 10 minutes.
3. Perform self-diagnosis.
Refer to AT- 2 5 3 , "
SELF-DIAGNOSTIC PROCEDURE (WITH-
OUT CONSULT-II)" .
Diagnostic trouble code Malfunction is detected when... Check items (Possible cause)
: BATT/FLUID TEMP SEN
TCM receives an excessively low or high
voltage from the sensor.
●Harness or connectors
(The sensor circuit is open or shorted.)
●A/T fluid temperature sensor
: 8th judgement flicker
SAT014K
SCIA0702E
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AT-388
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BATT/FLUID TEMP SEN (A/T FLUID TEMP SENSOR CIRCUIT AND TCM POW-
ER SOURCE)
Wiring Diagram — AT — BA/FTS
ECS004U9
TCWA0044E
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![NISSAN X-TRAIL 2001 Service Repair Manual BATT/FLUID TEMP SEN (A/T FLUID TEMP SENSOR CIRCUIT AND TCM POW-
ER SOURCE)
AT-389
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Diagnostic ProcedureECS004UA
1.CHECK TCM POWER SOURCE
1. Turn ignition switch to “ON NISSAN X-TRAIL 2001 Service Repair Manual BATT/FLUID TEMP SEN (A/T FLUID TEMP SENSOR CIRCUIT AND TCM POW-
ER SOURCE)
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Diagnostic ProcedureECS004UA
1.CHECK TCM POWER SOURCE
1. Turn ignition switch to “ON](/manual-img/5/57405/w960_57405-2466.png)
BATT/FLUID TEMP SEN (A/T FLUID TEMP SENSOR CIRCUIT AND TCM POW-
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Diagnostic ProcedureECS004UA
1.CHECK TCM POWER SOURCE
1. Turn ignition switch to “ON” position.
(Do not start engine.)
2. Check voltage between TCM terminals 10, 19, 28 and ground.
3. Turn ignition switch to “OFF” position.
4. Check voltage between TCM terminal 28 and ground.
OK or NG
OK >> GO TO 2.
NG >> Check the following items:
●Harness for short or open between ignition switch and
TCM (Main harness)
●Ignition switch and fuse
Refer to PG-2, "
POWER SUPPLY ROUTING" .
2.CHECK A/T FLUID TEMPERATURE SENSOR WITH TERMINAL CORD ASSEMBLY
1. Turn ignition switch to “OFF” position.
2. Disconnect terminal cord assembly connector in engine compartment.
3. Check resistance between terminals 6 and 7 when A/T is cold.
4. Reinstall any part removed.
OK or NG
OK (With CONSULT-II)>>GO TO 3.
OK (Without CONSULT-II)>>GO TO 4.
NG >> 1. Remove oil pan.
2. Check the following items:
A/T fluid temperature sensor
Refer to AT- 3 9 1 , "
Component Inspection" .
Harness of terminal cord assembly for short or open Voltage: Battery voltage
Voltage: Battery voltage
SCIA0736E
Resistance Cold[20°C(68°F)]
: Approximately 2.5 kΩ
SCIA0737E
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![NISSAN X-TRAIL 2001 Service Repair Manual AT-390
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BATT/FLUID TEMP SEN (A/T FLUID TEMP SENSOR CIRCUIT AND TCM POW-
ER SOURCE)
3. CHECK INPUT SIGNAL OF A/T FLUID TEMPERATURE SENSOR (WITH CONSULT- I I )
With CONSULT-II
1. Start engine.
2. S NISSAN X-TRAIL 2001 Service Repair Manual AT-390
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BATT/FLUID TEMP SEN (A/T FLUID TEMP SENSOR CIRCUIT AND TCM POW-
ER SOURCE)
3. CHECK INPUT SIGNAL OF A/T FLUID TEMPERATURE SENSOR (WITH CONSULT- I I )
With CONSULT-II
1. Start engine.
2. S](/manual-img/5/57405/w960_57405-2467.png)
AT-390
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BATT/FLUID TEMP SEN (A/T FLUID TEMP SENSOR CIRCUIT AND TCM POW-
ER SOURCE)
3. CHECK INPUT SIGNAL OF A/T FLUID TEMPERATURE SENSOR (WITH CONSULT- I I )
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 “FLUID TEMP SE”.
OK or NG
OK >> GO TO 5.
NG >> Check the following item:
●Harness for short or open between TCM, ECM and
terminal cord assembly
●Ground circuit for ECM
Refer to EC-580, "
DTC P1065 ECM POWER SUP-
PLY" (QR25DE) or EC-1269, "DTC P1065 ECM POWER SUPPLY" (QR20DE).
4. CHECK INPUT SIGNAL OF A/T FLUID TEMPERATURE SENSOR (WITHOUT CONSULT-II)
Without CONSULT-II
1. Start engine.
2. Check voltage between TCM terminal 47 and ground while warming up A/T.
3. Turn ignition switch to “OFF” position.
4. Disconnect TCM harness connector.
5. Check resistance between terminal 42 and ground.
OK or NG
OK >> GO TO 5.
NG >> Check the following item:
●Harness for short or open between TCM, ECM and
terminal cord assembly
●Ground circuit for ECM
Refer to EC-580, "
DTC P1065 ECM POWER SUP-
PLY" (QR25DE) or EC-1269, "DTC P1065 ECM
POWER SUPPLY" (QR20DE). Vo l ta g e
Cold [20°C (68°F)] → Hot [80°C (176°F)]:
Approximately 1.5V→0.5V
SAT614J
Vo l ta g e
Cold [20°C (68°F)] → Hot [80°C (176°F)]:
Approximately 1.5V→0.5V
SCIA0738E
Continuity should exist.
SCIA0739E
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BATT/FLUID TEMP SEN (A/T FLUID TEMP SENSOR CIRCUIT AND TCM POW-
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5.CHECK DTC
Perform Self-diagnosis Code confirmation procedure. Refer to AT- 3 8 7 , "
SELF-DIAGNOSIS CODE CONFIR-
MATION PROCEDURE" .
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.
Component InspectionECS004UB
A/T FLUID TEMPERATURE SENSOR
●For removal, refer to AT- 4 1 4 , "Control Valve Assembly and
Accumulators" .
●Check resistance between two terminals while changing temper-
ature as shown at left.
Temperature °C (°F) Resistance
20 (68) Approximately 2.5 kΩ
80 (176) Approximately 0.3 kΩ
SAT298F
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![NISSAN X-TRAIL 2001 Service Repair Manual AT-392
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ENGINE SPEED SIGNAL
ENGINE SPEED SIGNAL
PFP:24825
DescriptionECS004UC
The engine speed signal is sent from the ECM to the TCM.
TCM TERMINALS AND REFERENCE VALUE
Remarks: Specification dat NISSAN X-TRAIL 2001 Service Repair Manual AT-392
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ENGINE SPEED SIGNAL
ENGINE SPEED SIGNAL
PFP:24825
DescriptionECS004UC
The engine speed signal is sent from the ECM to the TCM.
TCM TERMINALS AND REFERENCE VALUE
Remarks: Specification dat](/manual-img/5/57405/w960_57405-2469.png)
AT-392
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ENGINE SPEED SIGNAL
ENGINE SPEED SIGNAL
PFP:24825
DescriptionECS004UC
The engine speed signal is sent from the ECM to the TCM.
TCM TERMINALS AND REFERENCE VALUE
Remarks: Specification data are reference values.
ON BOARD DIAGNOSIS LOGIC
SELF-DIAGNOSIS CODE CONFIRMATION PROCEDURE
After the repair, perform the following procedure to confirm the malfunction is eliminated.
With CONSULT-II
1. Start engine.
2. Select “SELF-DIAG RESULTS” mode for A/T with CONSULT-II.
3. Drive vehicle under the following conditions:
Selector lever in “D” position, vehicle speed higher than 10 km/h
(6 MPH), throttle opening greater than 1/8 of the full throttle
position and driving for more than 10 seconds.
Without CONSULT-II
1. Start engine.
2. Drive vehicle under the following conditions:
Selector lever in “D” position, vehicle speed higher than 10 km/h
(6 MPH), throttle opening greater than 1/8 of the full throttle
position and driving for more than 10 seconds.
3. Perform self-diagnosis.
Refer to AT- 2 5 3 , "
SELF-DIAGNOSTIC PROCEDURE (WITH-
OUT CONSULT-II)" .
Te r m i -
nal No.Wire color Item ConditionJudgement stan-
dard
(Approx.)
39 L/OREngine speed
signalandRefer to EC-479, "
ECM INSPECTION TABLE"
(QR25DE) or EC-1166, "ECM INSPECTION
TABLE" (QR20DE).—
Diagnostic trouble code Malfunction is detected when... Check item (Possible cause)
: ENGINE SPEED SIG
TCM does not receive the proper voltage
signal from ECM.
●Harness or connectors
(The sensor circuit is open or shorted.)
: 9th judgement flicker
SAT014K
SCIA0703E
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ENGINE SPEED SIGNAL
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Wiring Diagram — AT — ENGSSECS004UD
TCWA0045E
Page 2472 of 3833
AT-394
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ENGINE SPEED SIGNAL
Diagnostic Procedure
ECS004UE
1. CHECK DTC WITH ECM
Perform diagnostic test mode II (self-diagnostic results) for engine control. Check ignition signal circuit condi-
tion.
OK or NG
OK (With CONSULT-II)>>GO TO 2.
OK (Without CONSULT-II)>>GO TO 3.
NG >> Check ignition signal circuit for engine control. Refer to EC-683, "
IGNITION SIGNAL" (QR25DE)
orEC-1331, "
IGNITION SIGNAL" (QR20DE).
2. 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 “ENGINE SPEED”.
Check engine speed changes according to throttle position.
OK or NG
OK >> GO TO 4.
NG >> Check the following items:
●Harness for short or open between TCM and ECM
●Resistor and ignition coil
Refer to EC-683, "
IGNITION SIGNAL" (QR25DE) or
EC-1331, "
IGNITION SIGNAL" (QR20DE).
SAT014K
SAT645J