NISSAN X-TRAIL 2003 Service Repair Manual

DTC P0750 SHIFT SOLENOID VALVE A
AT-165
[EURO-OBD]
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2. CHECK SHIFT SOLENOID VALVE A CIRCUIT
1. Turn ignition switch OFF.
2. Disconnect TCM connector.
3. Check resistance between TCM connector terminal and ground.
OK or NG
OK >> GO TO 5.
NG >> GO TO 3.
3. CHECK HARNESS BETWEEN TCM AND TERMINAL CORD ASSEMBLY HARNESS CONNECTOR
1. Turn ignition switch OFF.
2. Disconnect terminal cord assembly harness connector and TCM connector.
3. Check continuity between terminal cord assembly harness con-
nector terminal and TCM connector terminal.
4. If OK, check harness for short to ground and short to power.
5. If OK, check continuity between ground and transaxle assembly.
6. Reinstall any part removed.
OK or NG
OK >> GO TO 4.
NG >> Repair open circuit or short to ground or short to power in harness or connectors.
4. CHECK VALVE RESISTANCE
1. Turn ignition switch OFF.
2. Disconnect terminal cord assembly harness connector in engine room.
3. Check resistance between terminal cord assembly harness con-
nector terminal and ground.
OK or NG
OK >> GO TO 5.
NG >> Repair or replace damaged parts.
5. CHECK DTC
Perform AT- 1 6 1 , "
DTC Confirmation Procedure" .
OK or NG
OK >>INSPECTION END
NG >> GO TO 6.
Solenoid Valve Connector No.Terminal No.
(Wire color)Resistance
(Approx.)
Shift solenoid valve A F46 11 (L/W) -
Ground20 - 30 Ω
SCIA3249E
Item Connector No.Terminal No.
(Wire color)Continuity
TCM F46 11 (L/W)
Ye s
Terminal cord assembly
harness connectorF23 2 (L/W)
SCIA3250E
Resistance : 20 - 30Ω
SCIA3453E

AT-166
[EURO-OBD]
DTC P0750 SHIFT SOLENOID VALVE A

6. CHECK TCM
1. Check TCM input/output signal. Refer to AT- 9 4 , "
TCM Terminals and Reference Value" .
2. If NG, recheck TCM pin terminals for damage or loose connection with harness connector.
OK or NG
OK >>INSPECTION END
NG >> Repair or replace damaged parts.
Component InspectionECS004S1
SHIFT SOLENOID VALVE A

For removal, refer to AT- 4 0 4 , "Control Valve Assembly and Accumulators" .
Resistance Check

Check resistance between terminal and ground.
Operation Check

Check solenoid valve by listening for its operating sound while
applying battery voltage to the terminal and ground.
Solenoid valve Terminal No.Resistance
(Approx.)
Shift solenoid
valve A2 Ground 20 - 30Ω
SCIA2049E
SCIA2052E

DTC P0755 SHIFT SOLENOID VALVE B
AT-167
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DTC P0755 SHIFT SOLENOID VALVE BPFP:31940
DescriptionECS004S2
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.
CONSULT-II REFERENCE VALUE IN DATA MONITOR MODE
Remarks: Specification data are reference values.
On Board Diagnosis LogicECS00CUD
Possible CauseECS00CUE
Check the following items.

Harness or connector
(The solenoid circuit is open or shorted.)

Shift solenoid valve B
DTC Confirmation ProcedureECS00CUF
CAUTION:
Always drive vehicle at a safe speed.
NOTE:
If “DTC Confirmation Procedure” has been previously conducted, always turn ignition switch OFF and
wait at least 5 seconds before conducting the next test.
After the repair, perform the following procedure to confirm the malfunction is eliminated.
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)
Monitor item Condition Display value
SHIFT S/V B (ON/OFF)When shift solenoid valve B operates.
(When driving in D
1 or D2 .)ON
When shift solenoid valve B does not operate.
(When driving in D
3 or D4 .)OFF
Diagnostic trouble code Malfunction is detected when... Check items (Possible cause)
: SHIFT SOLENOID/V B
TCM detects an improper voltage drop
when it tries to operate the solenoid valve.

Harness or connectors
(The solenoid circuit is open or shorted.)

Shift solenoid valve B
: P0755

AT-168
[EURO-OBD]
DTC P0755 SHIFT SOLENOID VALVE B

WITH CONSULT-II
1. Turn ignition switch ON and select “DATA MONITOR” mode for
“A/T” with CONSULT-II.
2. Start engine.
3. Drive vehicle in D position and allow the transmission to shift 1
→ 2 → 3 (“GEAR”).
4. If the check result is NG, go to AT- 1 7 0 , "
Diagnostic Procedure" .
WITH GST
Follow the procedure “WITH CONSULT-II”.
WITHOUT CONSULT-II
1. Start engine.
2. Drive vehicle in D → D
2 → D3 position.
3. Perform self-diagnosis.
Refer to AT- 5 2 , "
Diagnostic Procedure Without CONSULT-II" .
4. If the check result is NG, go to AT- 1 7 0 , "
Diagnostic Procedure" .
SAT014K
SCIA5358E
SCIA5595E

DTC P0755 SHIFT SOLENOID VALVE B
AT-169
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Wiring Diagram — AT — SSV/BECS004S3
TCWA0041E

AT-170
[EURO-OBD]
DTC P0755 SHIFT SOLENOID VALVE B

TERMINALS AND REFERENCE VALUE MEASURED BETWEEN EACH TERMINAL
Diagnostic ProcedureECS004S4
1. CHECK INPUT SIGNAL
With CONSULT-II
1. Start engine.
2. Select “MAIN SIGNALS” in “DATA MONITOR” mode for “A/T” with CONSULT-II.
3. Read out the value of “SHIFT S/V B” while driving.
Check the value changes according to driving speed.
Without CONSULT-II
1. Start engine.
2. Check voltage between TCM connector terminal and ground.
OK or NG
OK >> GO TO 5.
NG >> GO TO 2.
Termi-
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
Monitor item Condition Display value
SHIFT S/V BWhen shift solenoid valve B operates.
(When driving in D
1 or D2 .)ON
When shift solenoid valve B does not oper-
ate.
(When driving in D
3 or D4 .)OFF
SCIA3251E
Name Connec-
tor No. Terminal
No. (Wire
color) ConditionJudge-
mentstan-
dard(Appro
x.)
Shift sole-
noid valve B F46 12 (L/Y) -
GroundWhen shift solenoid valve
B operates.
(When driving in D
1 or
D
2 .)Battery
voltage
When shift solenoid valve
B does not operate.
(When driving in D
3 or
D
4 .)0V
SCIA3253E

DTC P0755 SHIFT SOLENOID VALVE B
AT-171
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2. CHECK SHIFT SOLENOID VALVE B CIRCUIT
1. Turn ignition switch OFF.
2. Disconnect TCM connector.
3. Check resistance between TCM connector terminal and ground.
OK or NG
OK >> GO TO 5.
NG >> GO TO 3.
3. CHECK HARNESS BETWEEN TCM AND TERMINAL CORD ASSEMBLY HARNESS CONNECTOR
1. Turn ignition switch OFF.
2. Disconnect terminal cord assembly harness connector and TCM connector.
3. Check continuity between terminal cord assembly harness con-
nector terminal and TCM connector terminal.
4. If OK, check harness for short to ground and short to power.
5. If OK, check continuity between ground and transaxle assembly.
6. Reinstall any part removed.
OK or NG
OK >> GO TO 4.
NG >> Repair open circuit or short to ground or short to power in harness or connectors.
4. CHECK VALVE RESISTANCE
1. Turn ignition switch OFF.
2. Disconnect terminal cord assembly harness connector in engine room.
3. Check resistance between terminal cord assembly harness con-
nector terminal and ground.
OK or NG
OK >> GO TO 5.
NG >> Repair or replace damaged parts.
5. CHECK DTC
Perform AT- 1 6 7 , "
DTC Confirmation Procedure" .
OK or NG
OK >>INSPECTION END
NG >> GO TO 6.
Solenoid Valve Connector No.Terminal No.
(Wire color)Resistance
(Approx.)
Shift solenoid valve B F46 12 (L/Y) -
Ground5 - 20 Ω
SCIA3254E
Item Connector No.Terminal No.
(Wire color)Continuity
TCM F46 12 (L/Y)
Ye s
Terminal cord assembly
harness connectorF23 1 (L/Y)
SCIA3255E
Resistance : 5 - 20Ω
SCIA3454E

AT-172
[EURO-OBD]
DTC P0755 SHIFT SOLENOID VALVE B

6. CHECK TCM
1. Check TCM input/output signal. Refer to AT- 9 4 , "
TCM Terminals and Reference Value" .
2. If NG, recheck TCM pin terminals for damage or loose connection with harness connector.
OK or NG
OK >>INSPECTION END
NG >> Repair or replace damaged parts.
Component InspectionECS004S5
SHIFT SOLENOID VALVE B

For removal, refer to AT- 4 0 4 , "Control Valve Assembly and Accumulators" .
Resistance Check

Check resistance between terminal and ground.
Operation Check

Check solenoid valve by listening for its operating sound while
applying battery voltage to the terminal and ground.
Solenoid valve Terminal No.Resistance
(Approx.)
Shift solenoid
valve B1 Ground 5 - 20Ω
SCIA2055E
SCIA2058E

DTC P1705 ACCELERATOR PEDAL POSITION (APP) SENSOR
AT-173
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DTC P1705 ACCELERATOR PEDAL POSITION (APP) SENSORPFP:22620
DescriptionECS004S6

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.
On Board Diagnosis LogicECS00CUG
Possible CauseECS00CUH
Harness or connector
(The sensor circuit is open shorted.)
DTC Confirmation ProcedureECS00CUI
CAUTION:
Always drive vehicle at a safe speed.
NOTE:
If “DTC Confirmation Procedure” has been previously conducted, always turn ignition switch “OFF”
and wait at least 5 seconds before conducting the next test.
After the repair, perform the following procedure to confirm the malfunction is eliminated.
WITH CONSULT-II
1. Turn ignition switch ON and select “DATA MONITOR” mode for
“A/T” with CONSULT-II.
2. Check the following.
If the check result is NG, go to AT- 1 7 6 , "
Diagnostic Procedure" .
If the check result is OK, go to following step.
PBIB0498E
Monitor item Condition Specification
Accelerator pedal position (APP) sensor
(THRTL POS SEN)Fully-closed throttle Approximately 0.5V
Fully-open throttle Approximately 4V
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
: P1705
Accelerator pedal condition THRTL POS SEN
Fully released Less than 4.7V
Partially depressed 0.1 - 4.6V
Fully depressed 1.9 - 4.6V
SAT014K

AT-174
[EURO-OBD]
DTC P1705 ACCELERATOR PEDAL POSITION (APP) SENSOR

3. Turn ignition switch ON and select “DATA MONITOR” mode for
“A/T” with CONSULT-II.
4. Start engine and maintain the following conditions for at least 3
consecutive seconds. Then release accelerator pedal com-
pletely.
VHCL SPEED SE: 10 km/h (6 MPH) or more
THRTL POS SEN: Approximately 3V or less
Selector lever: D position (OD ON)
If the check result is NG, go to AT- 1 7 6 , "
Diagnostic Procedure" .
If the check result is OK, go to following step.
5. Maintain the following conditions for at least 3 consecutive sec-
onds. Then release accelerator pedal completely.
VHCL SPEED SE: 10 km/h (6 MPH) or more
Accelerator pedal: Wide open throttle
Selector lever: D position (OD ON)
WITH GST
Follow the procedure “WITH CONSULT-II”.
WITHOUT CONSULT-II
1. Start engine.
2. Drive vehicle under the following conditions for more than 3 sec-
onds.
Selector lever position: D position
Vehicle speed: 10km/h (6MPH) or more
Throttle position: greater than 4.0/8 of the full throttle posi-
tion
3. Perform self-diagnosis.
Refer to AT- 5 2 , "
Diagnostic Procedure Without CONSULT-II" .
4. If the check result is NG, go to AT- 1 7 6 , "
Diagnostic Procedure" .
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