2003 NISSAN ALMERA N16 Resistor

DTC P0745 LINE PRESSURE SOLENOID VALVE
AT-167
[EURO-OBD]
D
E
F
G
H
I
J
K
L
MA
B
AT
Diagnostic ProcedureECS007P4
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 4 and ground.
OK or NG
OK >> GO TO 2
NG >>1.Remove control valve assembly. Refer to AT- 4 0 6 ,
"Control Valve Assembly and Accumulators" .
2. Check the following items:
–Line pressure solenoid valve
Refer to AT- 1 6 9 , "
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 resistance between terminal 4 and TCM harness connector terminal 2.
OK or NG
OK >> GO TO 3
NG >> Check the following items:
●Dropping resistor
Refer to AT- 1 6 9 , "
Component Inspection" .
●Harness for short or open between TCM terminal 2
and terminal cord assembly Resistance: 2.5 - 5Ω
SAT895JA
Resistance: 10 - 15Ω
SAT896JB

AT-170
[EURO-OBD]
DTC P0745 LINE PRESSURE SOLENOID VALVE
DROPPING RESISTOR
●Check resistance between two terminals.
Resistance: 10 - 15Ω
SAT003K

AT-266
[EXC.F/EURO-OBD]
TROUBLE DIAGNOSIS — BASIC INSPECTION
JUDGEMENT OF LINE PRESSURE TEST
Road TestECS007QU
DESCRIPTION
●The purpose of the test is to determine overall performance of A/
T and analyze causes of problems.
●The road test consists of the following three parts:
1. Check before engine is started
2. Check at idle
3. Cruise test
●Before road test, familiarize yourself with all test procedures and
items to check.
●Conduct tests on all items until specified symptom is found.
Troubleshoot items which check out No Good after road test.
Refer to the following items.
Judgement Suspected parts
At idleLine pressure is low in all positions.
●Oil pump wear
●Control piston damage
●Pressure regulator valve or plug sticking
●Spring for pressure regulator valve damaged
●Fluid pressure leakage between oil strainer and pressure regulator valve
●Clogged strainer
Line pressure is low in particular posi-
tion.
●Fluid pressure leakage between manual valve and particular clutch
●For example, line pressure is:
− Low in “R” and “1” positions, but
− Normal in “D” and “2” positions.
Therefore, fluid leakage exists at or around low and reverse brake circuit.
Refer to AT- 1 8 , "
CLUTCH AND BAND CHART" .
Line pressure is high.
●Maladjustment of throttle position sensor
●A/T fluid temperature sensor damaged
●Line pressure solenoid valve sticking
●Short circuit of line pressure solenoid valve circuit
●Pressure modifier valve sticking
●Pressure regulator valve or plug sticking
●Open in dropping resistor circuit
At stall
speedLine pressure is low.
●Maladjustment of throttle position sensor
●Line pressure solenoid valve sticking
●Short circuit of line pressure solenoid valve circuit
●Pressure regulator valve or plug sticking
●Pressure modifier valve sticking
●Pilot valve sticking
SAT786A
SAT496G

AT-302
[EXC.F/EURO-OBD]
TROUBLE DIAGNOSIS — GENERAL DESCRIPTION
CONSULT-II REFERENCE VALUE IN DATA MONITOR MODE
Remarks: Specification data are reference values.
TCM Terminals and Reference ValueECS007QW
PREPARATION
●Measure voltage between each terminal and terminal 25 or 48
by following “TCM INSPECTION TABLE”.
TCM HARNESS CONNECTOR TERMINAL LAYOUT
TCM INSPECTION TABLE
(Data are reference values.)
Monitor item Condition Specification (Approximately)
A/T fluid temperature sensorCold [20°C (68°F)]
↓
Hot [80°C (176°F)]1.5V
↓
0.5V2.5kΩ
↓
0.3kΩ
Line pressure solenoid valve dutySmall throttle opening
(Low line pressure)
↓
Large throttle opening
(High line pressure)Approximately 24%
↓
Approximately 95%
Torque converter clutch solenoid valve dutyLock-up “OFF”
↓
Lock-up “ON”Approximately 4%
↓
Approximately 94%
Throttle position sensor (Accelerator pedal
position (APP) sensor)Fully-closed throttle Approximately 0.5V
Fully-open throttle Approximately 4V
SAT216J
SAT999J
Te r m i -
nal No.Wire color Item ConditionJudgementstan-
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

AT-386
[ALL]
ENGINE SPEED SIGNAL
Diagnostic Procedure
ECS007SI
1. CHECK DTC WITH ECM
Perform “Overall function check” for ignition signal. Refer to EC-369, "
Diagnostic Procedure" .
OK or NG
OK (With CONSULT-II)>>GO TO 2
OK (Without CONSULT-II)>>GO TO 3
NG >> Follow the construction of EC-369, "
Diagnostic Procedure" .
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-365, "
IGNITION SIGNAL" .
3. CHECK INPUT SIGNAL (WITHOUT CONSULT-II)
Without CONSULT-II
1. Start engine.
2. Check voltage between TCM terminal 39 and ground.
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-365, "
IGNITION SIGNAL" .
SAT014K
SAT645J
Voltage (Idle speed):
Refer to EC-365, "
IGNITION SIGNAL" .
SCIA0740E

AT-388
[ALL]
LINE PRESSURE SOLENOID VALVE
LINE PRESSURE SOLENOID VALVE
PFP:31940
DescriptionECS007SJ
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%
Te r m i -
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)
: LINE PRESSURE S/V
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
: 10th judgement flicker

LINE PRESSURE SOLENOID VALVE
AT-391
[ALL]
D
E
F
G
H
I
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K
L
MA
B
AT
Diagnostic ProcedureECS007SL
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 4 and ground.
OK or NG
OK >> GO TO 2
NG >>1.Remove control valve assembly. Refer to AT- 4 0 6 ,
"Control Valve Assembly and Accumulators" .
2. Check the following items:
–Line pressure solenoid valve
Refer to AT- 3 9 3 , "
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 resistance between terminal 4 and TCM harness connector terminal 2.
OK or NG
OK >> GO TO 3
NG >> Check the following items:
●Dropping resistor
Refer to AT- 3 9 3 , "
Component Inspection" .
●Harness for short or open between TCM terminal 2
and terminal cord assembly Resistance: 2.5 - 5Ω
SAT895JA
Resistance: 10 - 15Ω
SAT896JB

AT-394
[ALL]
LINE PRESSURE SOLENOID VALVE
DROPPING RESISTOR
●Check resistance between two terminals.
Resistance: 10 - 15Ω
SAT003K