Page 410 of 3066
![NISSAN X-TRAIL 2003 Electronic Repair Manual AT-404
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ACCELE RATOR PEDAL POSITION (APP) SENSOR
Diagnostic Procedure
ECS004TR
1.CHECK DTC WITH ECM
lCheck P code with CONSULT-II “ENGINE”.
Turn ignition switch ON and select “SELF DIAGNOST NISSAN X-TRAIL 2003 Electronic Repair Manual AT-404
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ACCELE RATOR PEDAL POSITION (APP) SENSOR
Diagnostic Procedure
ECS004TR
1.CHECK DTC WITH ECM
lCheck P code with CONSULT-II “ENGINE”.
Turn ignition switch ON and select “SELF DIAGNOST](/manual-img/5/57402/w960_57402-409.png)
AT-404
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ACCELE RATOR PEDAL POSITION (APP) SENSOR
Diagnostic Procedure
ECS004TR
1.CHECK DTC WITH ECM
lCheck P code with CONSULT-II “ENGINE”.
Turn ignition switch ON and select “SELF DIAGNOSTIC RESULTS” mode for “ENGINE” with CONSULT-II.
Refer to "EC-48, "
Malfunction Indicator (MI)"", “Malfunction Indicator Lamp (MIL)”.
OK or NG
OK (With CONSULT-II)>>GOTO2
OK (Without CONSULT-II)>>GOTO3
NG >> Check throttle position sensor circuit for engine control. Refer to "EC-154, "
DTC P0121 APP SEN-
SOR"", “DTC P0121 Accelerator pedal position (APP) sensor”.
2.CHECK INPUT SIGNAL (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 the value of “THRTL POS SEN”.
OK or NG
OK >> GO TO 4
NG >> Check harness for short or open between ECM and
TCM regarding throttle position sensor circuit. (Main
harness)
SAT014K
Vo l ta g e :
Fully-closed throttle :Approximately 0.5V
Fully-open throttle :Approximately 4V
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Page 411 of 3066
ACCELE RATOR PEDAL POSITION (APP) SENSOR
AT-405
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3.CHECK INPUT SIGNAL (WITHOUT CONSULT-II)
Wi th ou t C O N S U LT-I I
1. Turn ignition switch to “ON” position.
(Do not start engine.)
2. Check voltage between TCM terminals 41 and 42 while accelerator pedal is depressed slowly.
(Voltage rises gradually in response to throttle position.)
OK or NG
OK >> GO TO 4
NG >> Check harness for short or open between ECM and
TCM regarding throttle position sensor circuit. (Main
harness)
4.CHECK DTC
Perform Self-diagnosis Code confirmation procedure,AT-402, "
SELF-DIAGNOSIS CODE CONFIRMATION
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. Vo l ta g e :
Fully-closed throttle valve :Approximately 0.5V
Fully-open throttle valve :Approximately 4V
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Page 412 of 3066
![NISSAN X-TRAIL 2003 Electronic Repair Manual AT-406
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SHIFT SOLENOID VALVE A
SHIFT SOLENOID VALVE A
PFP:31940
DescriptionECS004TS
Shift solenoid valves A and B are turned “ON” or “OFF” by the TCM
in response to signals sent from the NISSAN X-TRAIL 2003 Electronic Repair Manual AT-406
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SHIFT SOLENOID VALVE A
SHIFT SOLENOID VALVE A
PFP:31940
DescriptionECS004TS
Shift solenoid valves A and B are turned “ON” or “OFF” by the TCM
in response to signals sent from the](/manual-img/5/57402/w960_57402-411.png)
AT-406
[ALL]
SHIFT SOLENOID VALVE A
SHIFT SOLENOID VALVE A
PFP:31940
DescriptionECS004TS
Shift solenoid valves A and B are turned “ON” or “OFF” by the TCM
in response to signals sent from the PNP switch, vehicle speed and
throttle position sensors. Gears will then be shifted to the optimum
position.
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 in D
1®D2position.
SCIA0718E
Gear position 1 2 3 4
Shift solenoid valve A ON (Closed) OFF (Open) OFF (Open) ON (Closed)
Shift solenoid valve B ON (Closed) ON (Closed) OFF (Open) OFF (Open)
Te r m i -
nal No.Wire color Item ConditionJudgement stan-
dard
(Approx.)
11 L / WShift solenoid
valve AWhen shift solenoid valve A oper-
ates.
(When driving in “D
1”or“D4”.)Battery voltage
When shift solenoid valve A does not
operate.
(When driving in “D
2”or“D3”.)0V
Diagnostic trouble code Malfunction is detected when... Check items (Possible cause)
:SHIFTSOLENOID/VA
TCM detects an improper voltage drop
when it tries to operate the solenoid valve.
lHarness or connectors
(The solenoid circuit is open or shorted.)
lShift solenoid valve A
: 4th judgement flicker
SAT014K
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![NISSAN X-TRAIL 2003 Electronic Repair Manual SHIFT SOLENOID VALVE A
AT-409
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Diagnostic ProcedureECS004TU
1.CHECK VALVE RESISTANCE
1. Turn ignition switch to “OFF” position.
2. Disconnect terminal cord assembly NISSAN X-TRAIL 2003 Electronic Repair Manual SHIFT SOLENOID VALVE A
AT-409
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Diagnostic ProcedureECS004TU
1.CHECK VALVE RESISTANCE
1. Turn ignition switch to “OFF” position.
2. Disconnect terminal cord assembly](/manual-img/5/57402/w960_57402-414.png)
SHIFT SOLENOID VALVE A
AT-409
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Diagnostic ProcedureECS004TU
1.CHECK VALVE RESISTANCE
1. Turn ignition switch to “OFF” position.
2. Disconnect terminal cord assembly connector in engine compartment.
3. Check resistance between terminal 2 and ground.
OK or NG
OK >> GO TO 2
NG >> 1. Remove control valve assembly. Refer toAT-453,
"Installation".
2. Check the following items:
Shift solenoid valve A
Refer to “Component Inspection”,AT-410, "
Compo-
nent Inspection".
Harness of terminal cord assembly for short or open
2.CHECK POWER SOURCE CIRCUIT
1. Turn ignition switch to “OFF” position.
2. Disconnect TCM harness connector.
3. Check continuity between terminal 2 and TCM harness connector terminal 11.
If OK, check harness for short to ground and short to power.
4. Reinstall any part removed.
OK or NG
OK >> GO TO 3
NG >> Repair open circuit or short to ground or short to power
in harness or connectors.
3.CHECK DTC
Perform Self-diagnosis Code confirmation procedure,AT-406, "
SHIFT SOLENOID VALVE A".
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. Resistance : 20 - 30W
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Continuity should exist.
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Page 417 of 3066
![NISSAN X-TRAIL 2003 Electronic Repair Manual SHIFT SOLENOID VALVE B
AT-411
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SHIFT SOLENOID VALVE BPFP:31940
DescriptionECS004TW
Shift solenoid valves A and B are turned “ON” or “OFF” by the TCM
in response NISSAN X-TRAIL 2003 Electronic Repair Manual SHIFT SOLENOID VALVE B
AT-411
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SHIFT SOLENOID VALVE BPFP:31940
DescriptionECS004TW
Shift solenoid valves A and B are turned “ON” or “OFF” by the TCM
in response](/manual-img/5/57402/w960_57402-416.png)
SHIFT SOLENOID VALVE B
AT-411
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SHIFT SOLENOID VALVE BPFP:31940
DescriptionECS004TW
Shift solenoid valves A and B are turned “ON” or “OFF” by the TCM
in response to signals sent from the PNP switch, vehicle speed and
throttle position sensors. Gears will then be shifted to the optimum
position.
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. DrivevehicleinD
1®D2®D3position.
SCIA0718E
Gear position 1 2 3 4
Shift solenoid valve A ON (Closed) OFF (Open) OFF (Open) ON (Closed)
Shift solenoid valve B ON (Closed) ON (Closed) OFF (Open) OFF (Open)
Te r m i -
nal No.Wire color Item ConditionJudgement stan-
dard
(Approx.)
12 L/YShift solenoid
valve BWhen shift solenoid valve B oper-
ates.
(When driving in “D
1”or“D2”.)Battery voltage
When shift solenoid valve B does not
operate.
(When driving in “D
3”or“D4”.)0V
Diagnostic trouble code Malfunction is detected when... Check items (Possible cause)
: SHIFT SOLENOID/VB
TCM detects an improper voltage drop
when it tries to operate the solenoid valve.
lHarness or connectors
(The solenoid circuit is open or shorted.)
lShift solenoid valve B
: 5th judgement flicker
SAT014K
Page 420 of 3066
![NISSAN X-TRAIL 2003 Electronic Repair Manual AT-414
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SHIFT SOLENOID VALVE B
Diagnostic Procedure
ECS004TY
1.CHECK VALVE RESISTANCE
1. Turn ignition switch to “OFF” position.
2. Disconnect terminal cord assembly connector in engine compa NISSAN X-TRAIL 2003 Electronic Repair Manual AT-414
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SHIFT SOLENOID VALVE B
Diagnostic Procedure
ECS004TY
1.CHECK VALVE RESISTANCE
1. Turn ignition switch to “OFF” position.
2. Disconnect terminal cord assembly connector in engine compa](/manual-img/5/57402/w960_57402-419.png)
AT-414
[ALL]
SHIFT SOLENOID VALVE B
Diagnostic Procedure
ECS004TY
1.CHECK VALVE RESISTANCE
1. Turn ignition switch to “OFF” position.
2. Disconnect terminal cord assembly connector in engine compartment.
3. Check resistance between terminal 1 and ground.
OK or NG
OK >> GO TO 2
NG >> 1. Remove control valve assembly. Refer toAT-453,
"Installation".
2. Check the following items:
Shift solenoid valve B
Refer to “Component Inspection”,AT-415, "
Compo-
nent Inspection".
Harness of terminal cord assembly for short or open
2.CHECK POWER SOURCE CIRCUIT
1. Turn ignition switch to “OFF” position.
2. Disconnect TCM harness connector.
3. Check continuity between terminal 12 and TCM harness connector terminal 1.
If OK, check harness for short to ground and short to power.
4. Reinstall any part removed.
OK or NG
OK >> GO TO 3
NG >> Repair open circuit or short to ground or short to power
in harness or connectors.
3.CHECK DTC
Perform Self-diagnosis Code confirmation procedure,AT- 4 11 , "
SHIFT SOLENOID VALVE B".
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. Resistance : 5 - 20W
SCIA0723E
Continuity should exist.
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Page 425 of 3066
![NISSAN X-TRAIL 2003 Electronic Repair Manual OVERRUN CLUTCH SOLENOID VALVE
AT-419
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Diagnostic ProcedureECS0 04 U2
1.CHECK VALVE RESISTANCE
1. Turn ignition switch to “OFF” position.
2. Disconnect terminal cord NISSAN X-TRAIL 2003 Electronic Repair Manual OVERRUN CLUTCH SOLENOID VALVE
AT-419
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Diagnostic ProcedureECS0 04 U2
1.CHECK VALVE RESISTANCE
1. Turn ignition switch to “OFF” position.
2. Disconnect terminal cord](/manual-img/5/57402/w960_57402-424.png)
OVERRUN CLUTCH SOLENOID VALVE
AT-419
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Diagnostic ProcedureECS0 04 U2
1.CHECK VALVE RESISTANCE
1. Turn ignition switch to “OFF” position.
2. Disconnect terminal cord assembly connector in engine compartment.
3. Check resistance between terminal 3 and ground.
OK or NG
OK >> GO TO 2
NG >> 1. Remove control valve assembly. Refer to $$$$$.
2. Check the following items:
Overrun clutch solenoid valve
Refer to “Component Inspection”,AT-420, "
Compo-
nent Inspection".
Harness of terminal cord assembly for short or open
2.CHECK POWER SOURCE CIRCUIT
1. Turn ignition switch to “OFF” position.
2. Disconnect TCM harness connector.
3. Check continuity between terminal 3 and TCM harness connector terminal 20.
If OK, check harness for short to ground and short to power.
4. Reinstall any part removed.
OK or NG
OK >> GO TO 3
NG >> Repair open circuit or short to ground or short to power
in harness or connectors.
3.CHECK DTC
Perform Self-diagnosis Code confirmation procedure,AT-416, "
OVERRUN CLUTCH SOLENOID VALVE".
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. Resistance : 20 - 30W
SCIA0727E
Continuity should exist.
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Page 430 of 3066
![NISSAN X-TRAIL 2003 Electronic Repair Manual AT-424
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TORQUE CONVERTER CLUTCH SOLENOID VALVE
Diagnostic Procedure
ECS004U6
1.CHECK VALVE RESISTANCE
1. Turn ignition switch to “OFF” position.
2. Disconnect terminal cord assembly connector NISSAN X-TRAIL 2003 Electronic Repair Manual AT-424
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TORQUE CONVERTER CLUTCH SOLENOID VALVE
Diagnostic Procedure
ECS004U6
1.CHECK VALVE RESISTANCE
1. Turn ignition switch to “OFF” position.
2. Disconnect terminal cord assembly connector](/manual-img/5/57402/w960_57402-429.png)
AT-424
[ALL]
TORQUE CONVERTER CLUTCH SOLENOID VALVE
Diagnostic Procedure
ECS004U6
1.CHECK VALVE RESISTANCE
1. Turn ignition switch to “OFF” position.
2. Disconnect terminal cord assembly connector in engine compartment.
3. Check resistance between terminal 5 and ground.
OK or NG
OK >> GO TO 2
NG >> 1. Remove oil pan. Refer toAT- 4 5 3 , "
Installation".
2. Check the following items:
Torque converter clutch solenoid valve
Refer to “Component Inspection”,AT-425, "
Compo-
nent Inspection".
Harness of terminal cord assembly for short or open
2.CHECK POWER SOURCE CIRCUIT
1. Turn ignition switch to “OFF” position.
2. Disconnect TCM harness connector.
3. Check continuity between terminal 5 and TCM harness connector terminal 3.
If OK, check harness for short to ground and short to power.
4. Reinstall any part removed.
OK or NG
OK >> GO TO 3
NG >> Repair open circuit or short to ground or short to power
in harness or connectors.
3.CHECK DTC
Perform Self-diagnosis Code confirmation procedure,AT - 4 2 1 , "
TORQUE CONVERTER CLUTCH SOLENOID
VA LV E".
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. Resistance : 5 - 20W
SCIA0731E
Continuity should exist.
SCIA0732E