NISSAN ALMERA N16 2003 Electronic Repair Manual
Manufacturer: NISSAN, Model Year: 2003, Model line: ALMERA N16, Model: NISSAN ALMERA N16 2003Pages: 3189, PDF Size: 54.76 MB
Page 1611 of 3189
![NISSAN ALMERA N16 2003 Electronic Repair Manual DTC P0734 A/T 4TH GEAR FUNCTION
AT-155
[EURO-OBD]
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Diagnostic ProcedureECS007OW
1.CHECK SHIFT UP (D3 TO D4 )
During “Cruise test — Part 1” (AT- 7 8
), does A/T shift f NISSAN ALMERA N16 2003 Electronic Repair Manual DTC P0734 A/T 4TH GEAR FUNCTION
AT-155
[EURO-OBD]
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Diagnostic ProcedureECS007OW
1.CHECK SHIFT UP (D3 TO D4 )
During “Cruise test — Part 1” (AT- 7 8
), does A/T shift f](/img/5/57350/w960_57350-1610.png)
DTC P0734 A/T 4TH GEAR FUNCTION
AT-155
[EURO-OBD]
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Diagnostic ProcedureECS007OW
1.CHECK SHIFT UP (D3 TO D4 )
During “Cruise test — Part 1” (AT- 7 8
), does A/T shift from D3 to D4
at the specified speed?
Ye s o r N o
Ye s > > G O T O 9
No >> GO TO 2
2.CHECK LINE PRESSURE
Perform line pressure test.
Refer to AT-67, "
Line Pressure Test" .
OK or NG
OK >> GO TO 3
NG >> GO TO 6
3.CHECK SOLENOID VALVES
1. Remove control valve assembly.
Refer to AT-406, "
Control Valve Assembly and Accumulators" .
2. Refer to AT-158, "
Component Inspection" .
OK or NG
OK >> GO TO 4
NG >> Replace solenoid valve assembly.
SAT988H
Engine speed rpmLine pressure kPa (bar, kg/cm2
, psi )
D, 2 and 1 positions R position
Idle 500 (0.50, 5.1, 73) 778 (7.78, 7.9, 113)
Stall 1,165 (11.7, 11.9, 169) 1,813 (18.1, 18.5, 263)
SAT847JB
Page 1612 of 3189
![NISSAN ALMERA N16 2003 Electronic Repair Manual AT-156
[EURO-OBD]
DTC P0734 A/T 4TH GEAR FUNCTION
4. CHECK CONTROL VALVE
1. Disassemble control valve assembly.
Refer to AT- 4 3 9 , "
Control Valve Assembly" .
2. Check to ensure that:
●V NISSAN ALMERA N16 2003 Electronic Repair Manual AT-156
[EURO-OBD]
DTC P0734 A/T 4TH GEAR FUNCTION
4. CHECK CONTROL VALVE
1. Disassemble control valve assembly.
Refer to AT- 4 3 9 , "
Control Valve Assembly" .
2. Check to ensure that:
●V](/img/5/57350/w960_57350-1611.png)
AT-156
[EURO-OBD]
DTC P0734 A/T 4TH GEAR FUNCTION
4. CHECK CONTROL VALVE
1. Disassemble control valve assembly.
Refer to AT- 4 3 9 , "
Control Valve Assembly" .
2. Check to ensure that:
●Valve, sleeve and plug slide along valve bore under their own
weight.
●Valve, sleeve and plug are free from burrs, dents and scratches.
●Control valve springs are free from damage, deformation and
fatigue.
●Hydraulic line is free from obstacles.
OK or NG
OK >> GO TO 5
NG >> Repair control valve.
5. CHECK SHIFT UP (D3 TO D4 )
Does A/T shift from D
3 to D4 at the specified speed?
OK or NG
OK >> GO TO 9
NG >> Check control valve again. Repair or replace control valve assembly.
6. CHECK LINE PRESSURE SOLENOID VALVE
1. Remove control valve assembly.
Refer to AT- 4 0 6 , "
Control Valve Assembly and Accumulators" .
2. Refer to AT- 1 5 8 , "
Component Inspection" .
OK or NG
OK >> GO TO 7
NG >> Replace solenoid valve assembly.
SAT367H
SAT888JA
Page 1613 of 3189
![NISSAN ALMERA N16 2003 Electronic Repair Manual DTC P0734 A/T 4TH GEAR FUNCTION
AT-157
[EURO-OBD]
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7.CHECK CONTROL VALVE
1. Disassemble control valve assembly.
Refer to AT-439, "
Control Valve Assembly" .
2. Check l NISSAN ALMERA N16 2003 Electronic Repair Manual DTC P0734 A/T 4TH GEAR FUNCTION
AT-157
[EURO-OBD]
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7.CHECK CONTROL VALVE
1. Disassemble control valve assembly.
Refer to AT-439, "
Control Valve Assembly" .
2. Check l](/img/5/57350/w960_57350-1612.png)
DTC P0734 A/T 4TH GEAR FUNCTION
AT-157
[EURO-OBD]
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7.CHECK CONTROL VALVE
1. Disassemble control valve assembly.
Refer to AT-439, "
Control Valve Assembly" .
2. Check line pressure circuit valves for sticking.
●Pressure regulator valve
●Pilot valve
●Pressure modifier valve
OK or NG
OK >> GO TO 8
NG >> Repair control valve.
8.CHECK SHIFT UP (D3 TO D4 )
Does A/T shift from D
3 to D4 at the specified speed?
Ye s o r N o
Ye s > > G O T O 9
No >> Check control valve again. Repair or replace control valve assembly.
9.CHECK DTC
Perform AT- 1 5 2 , "
DIAGNOSTIC TROUBLE CODE (DTC) CONFIRMATION PROCEDURE" .
OK or NG
OK >>INSPECTION END
NG >> Perform “Cruise test — Part 1” again and return to the start point of this test group.
SAT367H
Page 1614 of 3189
![NISSAN ALMERA N16 2003 Electronic Repair Manual AT-158
[EURO-OBD]
DTC P0734 A/T 4TH GEAR FUNCTION
Component Inspection
ECS007OX
SOLENOID VALVES
●For removal, refer to AT-406, "Control Valve Assembly and Accumulators" .
Resistance Check
NISSAN ALMERA N16 2003 Electronic Repair Manual AT-158
[EURO-OBD]
DTC P0734 A/T 4TH GEAR FUNCTION
Component Inspection
ECS007OX
SOLENOID VALVES
●For removal, refer to AT-406, "Control Valve Assembly and Accumulators" .
Resistance Check](/img/5/57350/w960_57350-1613.png)
AT-158
[EURO-OBD]
DTC P0734 A/T 4TH GEAR FUNCTION
Component Inspection
ECS007OX
SOLENOID VALVES
●For removal, refer to AT-406, "Control Valve Assembly and Accumulators" .
Resistance Check
●Check resistance between two terminals.
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
Ground20 - 30Ω
Shift solenoid
valve B1 5 - 20Ω
Line pressure
solenoid valve4 2.5 - 5Ω
SAT848JB
SAT847JB
Page 1615 of 3189
![NISSAN ALMERA N16 2003 Electronic Repair Manual DTC P0740 TORQUE CONVERTER CLUTCH SOLENOID VALVE
AT-159
[EURO-OBD]
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DTC P0740 TORQUE CONVERTER CLUTCH SOLENOID VALVEPFP:31940
DescriptionECS007OY
The torque converter clutch s NISSAN ALMERA N16 2003 Electronic Repair Manual DTC P0740 TORQUE CONVERTER CLUTCH SOLENOID VALVE
AT-159
[EURO-OBD]
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DTC P0740 TORQUE CONVERTER CLUTCH SOLENOID VALVEPFP:31940
DescriptionECS007OY
The torque converter clutch s](/img/5/57350/w960_57350-1614.png)
DTC P0740 TORQUE CONVERTER CLUTCH SOLENOID VALVE
AT-159
[EURO-OBD]
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DTC P0740 TORQUE CONVERTER CLUTCH SOLENOID VALVEPFP:31940
DescriptionECS007OY
The torque converter clutch solenoid valve is activated, with the gear
in “D
4 ”, by the TCM in response to signals sent from the vehicle
speed and throttle position sensors. Lock-up piston operation will
then be controlled.
Lock-up operation, however, is prohibited when A/T fluid tempera-
ture is too low.
When the accelerator pedal is depressed (less than 2/8) in lock-up
condition, the engine speed should not change abruptly. If there is a
big jump in engine speed, there is no lock-up.
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
DIAGNOSTIC TROUBLE CODE (DTC) CONFIRMATION PROCEDURE
NOTE:
If “DIAGNOSTIC TROUBLE CODE 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”.
2. Select “DATA MONITOR” mode for “ENGINE” with CONSULT-II
and wait at least 1 second.
SCIA0718E
Monitor item Condition Specification
Torque converter clutch solenoid valve
dutyLock-up “OFF”
↓
Lock-up “ON”Approximately 4%
↓
Approximately 94%
Te r m i -
nal No.Wire color Item ConditionJudgement stan-
dard
(Approx.)
3GY/RTorque converter
clutch solenoid
valve When A/T performs lock-up. 8 - 15V
When A/T does not perform lock-up. 0V
Diagnostic trouble code Malfunction is detected when... Check items (Possible cause)
: TCC SOLENOID/CIRC
TCM detects an improper voltage drop
when it tries to operate the solenoid valve.
●Harness or connectors
(The solenoid circuit is open or shorted.)
●T/C clutch solenoid valve
: P0740
SAT014K
Page 1616 of 3189
![NISSAN ALMERA N16 2003 Electronic Repair Manual AT-160
[EURO-OBD]
DTC P0740 TORQUE CONVERTER CLUTCH SOLENOID VALVE
3. If DTC is detected, go to AT- 1 6 2 , "Diagnostic Procedure" .
With GST
Follow the procedure “With CONSULT-II”.
SAT NISSAN ALMERA N16 2003 Electronic Repair Manual AT-160
[EURO-OBD]
DTC P0740 TORQUE CONVERTER CLUTCH SOLENOID VALVE
3. If DTC is detected, go to AT- 1 6 2 , "Diagnostic Procedure" .
With GST
Follow the procedure “With CONSULT-II”.
SAT](/img/5/57350/w960_57350-1615.png)
AT-160
[EURO-OBD]
DTC P0740 TORQUE CONVERTER CLUTCH SOLENOID VALVE
3. If DTC is detected, go to AT- 1 6 2 , "Diagnostic Procedure" .
With GST
Follow the procedure “With CONSULT-II”.
SAT020K
Page 1617 of 3189
![NISSAN ALMERA N16 2003 Electronic Repair Manual DTC P0740 TORQUE CONVERTER CLUTCH SOLENOID VALVE
AT-161
[EURO-OBD]
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Wiring Diagram — AT — TCVECS007OZ
YAT 2 3 9 NISSAN ALMERA N16 2003 Electronic Repair Manual DTC P0740 TORQUE CONVERTER CLUTCH SOLENOID VALVE
AT-161
[EURO-OBD]
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Wiring Diagram — AT — TCVECS007OZ
YAT 2 3 9](/img/5/57350/w960_57350-1616.png)
DTC P0740 TORQUE CONVERTER CLUTCH SOLENOID VALVE
AT-161
[EURO-OBD]
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Wiring Diagram — AT — TCVECS007OZ
YAT 2 3 9
Page 1618 of 3189
![NISSAN ALMERA N16 2003 Electronic Repair Manual AT-162
[EURO-OBD]
DTC P0740 TORQUE CONVERTER CLUTCH SOLENOID VALVE
Diagnostic Procedure
ECS007P0
1. CHECK VALVE RESISTANCE
1. Turn ignition switch to “OFF” position.
2. Disconnect terminal cord as NISSAN ALMERA N16 2003 Electronic Repair Manual AT-162
[EURO-OBD]
DTC P0740 TORQUE CONVERTER CLUTCH SOLENOID VALVE
Diagnostic Procedure
ECS007P0
1. CHECK VALVE RESISTANCE
1. Turn ignition switch to “OFF” position.
2. Disconnect terminal cord as](/img/5/57350/w960_57350-1617.png)
AT-162
[EURO-OBD]
DTC P0740 TORQUE CONVERTER CLUTCH SOLENOID VALVE
Diagnostic Procedure
ECS007P0
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 to AT- 4 0 6 , "
ON-VEHICLE
SERVICE" .
2. Check the following items:
–Torque converter clutch solenoid valve
Refer to AT-163, "
Component 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 AT-159, "
DIAGNOSTIC TROUBLE CODE (DTC) 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. Resistance: 5 - 20Ω
SAT889JB
Continuity should exist.
SAT890JB
Page 1619 of 3189
![NISSAN ALMERA N16 2003 Electronic Repair Manual DTC P0740 TORQUE CONVERTER CLUTCH SOLENOID VALVE
AT-163
[EURO-OBD]
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Component InspectionECS007P1
TORQUE CONVERTER CLUTCH SOLENOID VALVE
●For removal, refer to AT-406, "C NISSAN ALMERA N16 2003 Electronic Repair Manual DTC P0740 TORQUE CONVERTER CLUTCH SOLENOID VALVE
AT-163
[EURO-OBD]
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Component InspectionECS007P1
TORQUE CONVERTER CLUTCH SOLENOID VALVE
●For removal, refer to AT-406, "C](/img/5/57350/w960_57350-1618.png)
DTC P0740 TORQUE CONVERTER CLUTCH SOLENOID VALVE
AT-163
[EURO-OBD]
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Component InspectionECS007P1
TORQUE CONVERTER CLUTCH SOLENOID VALVE
●For removal, refer to AT-406, "Control Valve Assembly and Accumulators" .
Resistance Check
●Check resistance between two terminals.
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.)
Torque converter
clutch solenoid
valve5 Ground 5 - 20Ω
SAT053KA
SAT054KA
Page 1620 of 3189
![NISSAN ALMERA N16 2003 Electronic Repair Manual AT-164
[EURO-OBD]
DTC P0745 LINE PRESSURE SOLENOID VALVE
DTC P0745 LINE PRESSURE SOLENOID VALVE
PFP:31940
DescriptionECS007P2
The line pressure solenoid valve regulates the oil pump discharge NISSAN ALMERA N16 2003 Electronic Repair Manual AT-164
[EURO-OBD]
DTC P0745 LINE PRESSURE SOLENOID VALVE
DTC P0745 LINE PRESSURE SOLENOID VALVE
PFP:31940
DescriptionECS007P2
The line pressure solenoid valve regulates the oil pump discharge](/img/5/57350/w960_57350-1619.png)
AT-164
[EURO-OBD]
DTC P0745 LINE PRESSURE SOLENOID VALVE
DTC P0745 LINE PRESSURE SOLENOID VALVE
PFP:31940
DescriptionECS007P2
The line pressure solenoid valve regulates the oil pump discharge
pressure to suit the driving condition in response to a signal sent
from the TCM.
NOTE:
The line pressure duty cycle value is not consistent when the
closed throttle position switch is “ON”. To confirm the line
pressure duty cycle at low pressure, the accelerator (throttle)
should be open until the closed throttle position switch is
“OFF”.
CONSULT-II REFERENCE VALUE IN DATA MONITOR MODE
Remarks: Specification data are reference values.
NOTE:
The line pressure duty cycle value is not consistent when the closed throttle position switch is “ON”. To confirm the line pressure duty
cycle at low pressure, the accelerator (throttle) should be open until the closed throttle position switch is “OFF”.
TCM TERMINALS AND REFERENCE VALUE
Remarks: Specification data are reference values.
ON BOARD DIAGNOSIS LOGIC
SCIA0735E
Monitor item Condition Specification
Line pressure solenoid valve dutySmall throttle opening
(Low line pressure)
↓
Large throttle opening
(High line pressure)Approximately 24%
↓
Approximately 95%
Termi-
nal No.Wire color Item ConditionJudgement stan-
dard
(Approx.)
1R/WLine pressure
solenoid valveWhen releasing accelerator pedal
after warming up engine.1.5 - 3.0V
When depressing accelerator pedal
fully after warming up engine.0V
2P/BLine pressure
solenoid valve
(with dropping
resistor)When releasing accelerator pedal
after warming up engine.4 - 14V
When depressing accelerator pedal
fully after warming up engine.0V
Diagnostic trouble code Malfunction is detected when... Check items (Possible cause)
: L/PRESS SOL/CIRC
TCM detects an improper voltage drop
when it tries to operate the solenoid valve.
●Harness or connectors
(The solenoid circuit is open or shorted.)
●Line pressure solenoid valve
: P0745