2001 NISSAN ALMERA ESP

SAT561J
Line Pressure TestNJAT0027LINE PRESSURE TEST PORTSNJAT0027S01Location of line pressure test ports are shown in the illustration.
+Always replace pressure plugs as they are self-sealing
bolts.
SAT647B
LINE PRESSURE TEST PROCEDURENJAT0027S021. Check A/T fluid and engine oil levels. If necessary, add fluid or
oil.
2. Drive vehicle for approx. 10 minutes or until engine oil and ATF
reach operating temperature.
ATF operating temperature:
50 - 80ÉC (122 - 176ÉF)
UAT008
3. Install pressure gauge to corresponding line pressure port.
UAT008
4. Set parking brake and block wheels.
+Continue to depress brake pedal fully while line pressure
test is being performed at stall speed.
SAT493G
5. Start engine and measure line pressure at idle and stall speed.
+When measuring line pressure at stall speed, follow the
stall test procedure.
Line pressure: Refer to SDS, AT-473.
TROUBLE DIAGNOSIS Ð BASIC INSPECTION
Line Pressure Test
AT-84

Terminal
No.Wire color Item ConditionJudgement stan-
dard
41 GYThrottle position
sensor
When depressing accelerator pedal
slowly after warming up engine.
(Voltage rises gradually in response
to throttle position.)Fully-closed
throttle:
Approximately
0.5V
Fully-open
throttle:
Approximately 4V
42 BThrottle position
sensor
(Ground)ÐÐ
45 R/Y Stop lamp switchWhen depressing brake pedal. Battery voltage
When releasing brake pedal. 1V or less
47 BRA/T fluid tempera-
ture sensorWhen ATF temperature is 20ÉC
(68ÉF).Approximately
1.5V
When ATF temperature is 80ÉC
(176ÉF).Approximately
0.5V
48 B Ground Ð Ð
*2: This terminal is connected to the ECM. (Terminal No. 15 is for EURO-OBD only.)
*3: These terminals are connected to the data link connector.
TROUBLE DIAGNOSIS Ð GENERAL DESCRIPTION
TCM Terminals and Reference Value (Cont'd)
AT-122

SAT004K
DescriptionNJAT0070+Throttle position sensor
The throttle position sensor detects the throttle valve position
and sends a signal to the TCM.
+Throttle position switch
Consists of a wide open throttle position switch and a closed
throttle position switch.
The wide open throttle position switch sends a signal to the
TCM when the throttle valve is open at least 1/2 of the full
throttle position. The closed throttle position switch sends a
signal to the TCM when the throttle valve is fully closed.
CONSULT-II REFERENCE VALUE IN DATA MONITOR
MODE
NJAT0070S01Remarks: Specification data are reference values.
Monitor item Condition Specification
Throttle position sensorFully-closed throttle Approximately 0.5V
Fully-open throttle Approximately 4V
TCM TERMINALS AND REFERENCE VALUENJAT0070S02Remarks: Specification data are reference values.
Terminal
No.Wire color Item ConditionJudgement stan-
dard
16 Y/PUClosed throttle
position switch
(in throttle posi-
tion switch)
When releasing accelerator pedal
after warming up engine.
Refer to ªPreparationº, ªSELF-DI-
AGNOSTIC PROCEDURE (Without
CONSULT-II)º, AT-44.Battery voltage
When depressing accelerator pedal
after warming up engine.
Refer to ªPreparationº, ªSELF-DI-
AGNOSTIC PROCEDURE (Without
CONSULT-II)º, AT-44.1V or less
17 LGWide open
throttle position
switch
(in throttle posi-
tion switch)When depressing accelerator pedal
more than half-way after warming
up engine.Battery voltage
When releasing accelerator pedal
after warming up engine.1V or less
32 RThrottle position
sensor
(Power source)Ð 4.5 - 5.5V
41 GYThrottle position
sensorWhen depressing accelerator pedal
slowly after warming up engine.
(Voltage rises gradually in response
to throttle position.)Fully-closed
throttle:
Approximately
0.5V
Fully-open
throttle:
Approximately 4V
42 BGround
(Throttle position
sensor)ÐÐ
THROTTLE POSITION
SENSOR
EXCEPT FOR EURO-OBD
Description
AT-134

3 CHECK INPUT SIGNAL (WITHOUT CONSULT-II)
Without CONSULT-II
1. Apply vacuum to the throttle opener then check the following. Refer to steps 1 to 5 of ªPreparationº, ªSELF-DIAGNOS-
TIC PROCEDURE (Without CONSULT-II)º, AT-44.
2. Turn ignition switch to ªONº position.
(Do not start engine.)
3. Check voltage between TCM terminals 41 and 42 while accelerator pedal is depressed slowly.
Voltage:
Fully-closed throttle valve:
Approximately 0.5V
Fully-open throttle valve:
Approximately 4V
(Voltage rises gradually in response to throttle position)
SAT453J
OK or NG
OK©GO TO 5.
NG©Check harness for short or open between ECM and TCM regarding throttle position sen-
sor circuit. (Main harness)
THROTTLE POSITION
SENSOR
EXCEPT FOR EURO-OBD
Diagnostic Procedure (Cont'd)
AT-138

SAT322GC
DescriptionNJAT0064Shift solenoid valves A and B are turned ªONº or ªOFFº 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.
Gear position1234
Shift solenoid valve A ON (Closed) OFF (Open) OFF (Open) ON (Closed)
Shift solenoid valve B ON (Closed) ON (Closed) OFF (Open) OFF (Open)
TCM TERMINALS AND REFERENCE VALUENJAT0064S01Remarks: Specification data are reference values.
Terminal
No.Wire color Item ConditionJudgement stan-
dard
11 L/WShift solenoid
valve A
When shift solenoid valve A oper-
ates.
(When driving in ªD
1ºorªD4º.)Battery voltage
When shift solenoid valve A does
not operate.
(When driving in ªD
2ºorªD3º.)1V or less
ON BOARD DIAGNOSIS LOGICNJAT0064S02
Diagnostic trouble code Malfunction is detected when ... Check items (Possible cause)
: SHIFT SOLENOID/VA 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 A
: 4th judgement flicker
SHIFT SOLENOID VALVE AEXCEPT FOR EURO-OBD
Description
AT-142

SAT322GC
DescriptionNJAT0067Shift solenoid valves A and B are turned ªONº or ªOFFº 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.
Gear position1234
Shift solenoid valve A ON (Closed) OFF (Open) OFF (Open) ON (Closed)
Shift solenoid valve B ON (Closed) ON (Closed) OFF (Open) OFF (Open)
TCM TERMINALS AND REFERENCE VALUENJAT0067S01Remarks: Specification data are reference values.
Terminal
No.Wire color Item ConditionJudgement stan-
dard
12 L/YShift solenoid
valve B
When shift solenoid valve B oper-
ates.
(When driving in ªD
1ºorªD2º.)Battery voltage
When shift solenoid valve B does
not operate.
(When driving in ªD
3ºorªD4º.)1V or less
ON BOARD DIAGNOSIS LOGICNJAT0067S02
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.+Harness or connectors
(The solenoid circuit is open or shorted.)
+Shift solenoid valve B
: 5th judgement flicker
SHIFT SOLENOID VALVE BEXCEPT FOR EURO-OBD
Description
AT-148

SAT322GC
DescriptionNJAT0073The overrun clutch solenoid valve is activated by the TCM in
response to signals sent from the inhibitor switch, overdrive con-
trol switch, vehicle speed and throttle position sensors. The over-
run clutch operation will then be controlled.
TCM TERMINALS AND REFERENCE VALUENJAT0073S01Remarks: Specification data are reference values.
Terminal
No.Wire color Item ConditionJudgement stan-
dard
20 L/BOverrun clutch
solenoid valve
When overrun clutch solenoid valve
operates.Battery voltage
When overrun clutch solenoid valve
does not operate.1V or less
ON BOARD DIAGNOSIS LOGICNJAT0073S02
Diagnostic trouble code Malfunction is detected when ... Check items (Possible cause)
: OVERRUN CLUTCH 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.)
+Overrun clutch solenoid valve
: 6th judgement flicker
SAT580J
SAT815H
SELF-DIAGNOSIS CODE CONFIRMATION PROCEDURENJAT0073S04After the repair, perform the following procedure to confirm the
malfunction is eliminated.
With CONSULT-IINJAT0073S04011) Start engine.
2) Select ªSELF-DIAG RESULTSº mode for A/T with CONSULT-
II.
3) Drive vehicle under the following conditions:
Selector lever in ªDº position, overdrive control switch in ªOFFº
position and vehicle speed higher than 10 km/h (6 MPH).
Without CONSULT-IINJAT0073S04021) Start engine.
2) Drive vehicle under the following conditions:
Selector lever in ªDº position, overdrive control switch in ªOFFº
position and vehicle speed higher than 10 km/h (6 MPH).
3) Perform self-diagnosis.
Refer to ªSELF-DIAGNOSTIC PROCEDURE (Without
CONSULT-II)º, AT-44.
OVERRUN CLUTCH SOLENOID
VALVE
EXCEPT FOR EURO-OBD
Description
AT-154

SAT322GC
DescriptionNJAT0055The torque converter clutch solenoid valve is activated, with the
gear in ªD
4º, by the TCM in response to signals sent from the
vehicle speed and throttle position sensors. Lock-up piston opera-
tion 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
NJAT0055S01Remarks: Specification data are reference values.
Monitor item Condition Specification
Torque converter clutch solenoid valve
dutyLock-up ªOFFº
¯
Lock-up ªONºApproximately 4%
¯
Approximately 94%
TCM TERMINALS AND REFERENCE VALUENJAT0055S02Remarks: Specification data are reference values.
Terminal
No.Wire color Item ConditionJudgement
standard
3 GY/RTorque converter
clutch solenoid
valve
When A/T performs lock-up. 8 - 15V
When A/T does not perform lock-
up.1V or less
ON BOARD DIAGNOSIS LOGICNJAT0055S03
Diagnostic trouble code Malfunction is detected when ... Check items (Possible cause)
: T/C CLUTCH SOL/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.)
+T/C clutch solenoid valve
: 7th judgement flicker
TORQUE CONVERTER CLUTCH
SOLENOID VALVE
EXCEPT FOR EURO-OBD
Description
AT-159