NISSAN ALMERA 2001 Service Manual

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

SAT580J
SAT818H
SELF-DIAGNOSIS CODE CONFIRMATION PROCEDURENJAT0055S05After the repair, perform the following procedure to confirm the
malfunction is eliminated.
With CONSULT-IINJAT0055S05011) Start engine.
2) Select ªSELF-DIAG RESULTSº mode for A/T with CONSULT-
II.
3) Drive vehicle in D
1®D2®D3®D4®D4lock-up position.
Without CONSULT-IINJAT0055S05021) Start engine.
2) Drive vehicle in D
1®D2®D3®D4®D4lock-up position.
3) Perform self-diagnosis.
Refer to ªSELF-DIAGNOSTIC PROCEDURE (Without
CONSULT-II)º, AT-44.
TORQUE CONVERTER CLUTCH
SOLENOID VALVE
EXCEPT FOR EURO-OBD
Description (Cont'd)
AT-160

Wiring Diagram Ð AT Ð TCVNJAT0207
HAT082
TORQUE CONVERTER CLUTCH
SOLENOID VALVE
EXCEPT FOR EURO-OBD
Wiring Diagram Ð AT Ð TCV
AT-161

Diagnostic ProcedureNJAT0056
1 CHECK VALVE RESISTANCE
1. Turn ignition switch to ªOFFº position.
2. Disconnect terminal cord assembly connector in engine compartment.
3. Check resistance between terminal 5 and ground.
Resistance:
5-20W
SAT889JA
OK or NG
OK©GO TO 2.
NG©1. Remove oil pan. Refer to AT-351.
2. Check the following items:
+Torque converter clutch solenoid valve
Refer to ªComponent Inspectionº, AT-164.
+Harness of terminal cord assembly for short or open
TORQUE CONVERTER CLUTCH
SOLENOID VALVE
EXCEPT FOR EURO-OBD
Diagnostic Procedure
AT-162

2 CHECK POWER SOURCE CIRCUIT
1. Turn ignition switch to ªOFFº position.
2. Disconnect TCM harness connector.
3. Check continuity between terminal 5 and TCM harness connector terminal 3.
Continuity should exist.
SAT890JA
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-160.
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 con-
nector.
TORQUE CONVERTER CLUTCH
SOLENOID VALVE
EXCEPT FOR EURO-OBD
Diagnostic Procedure (Cont'd)
AT-163

SAT025K
Component InspectionNJAT0057TORQUE CONVERTER CLUTCH SOLENOID VALVENJAT0057S01+For removal, refer to AT-351.
Resistance CheckNJAT0057S0101+Check resistance between two terminals.
Solenoid valve Terminal No.Resistance
(Approx.)
Torque converter
clutch solenoid
valve5 Ground 5 - 20W
SAT026K
Operation CheckNJAT0057S0102+Check solenoid valve by listening for its operating sound while
applying battery voltage to the terminal and ground.
TORQUE CONVERTER CLUTCH
SOLENOID VALVE
EXCEPT FOR EURO-OBD
Component Inspection
AT-164

SAT283HC
SAT021J
DescriptionNJAT0076The A/T fluid temperature sensor detects the A/T fluid temperature
and sends a signal to the TCM.
CONSULT-II REFERENCE VALUE IN DATA MONITOR
MODE
NJAT0076S01Remarks: Specification data are reference values.
Monitor item Condition Specification
A/T fluid temperature sensorCold [20ÉC (68ÉF)]
¯
Hot [80ÉC (176ÉF)]Approximately 1.5V
¯
Approximately 0.5VApproximately 2.5 kW
¯
Approximately 0.3 kW
TCM TERMINALS AND REFERENCE VALUENJAT0076S02Remarks: Specification data are reference values.
Terminal
No.Wire color Item ConditionJudgement
standard
10 BR/R Power source
When turning ignition switch to
ªONº.Battery voltage
When turning ignition switch to
ªOFFº.1V or less
19 BR/R Power source Same as No. 10
28 R/BPower source
(Memory back-up)
or
When turning ignition switch to
ªOFFº.Battery voltage
When turning ignition switch to
ªONº.Battery voltage
42 BGround
(A/T fluid tempera-
ture sensor)
ÐÐ
47 BRA/T fluid tempera-
ture sensorWhen ATF temperature is 20ÉC
(68ÉF).Approximately
1.5V
When ATF temperature is 80ÉC
(176ÉF).Approximately
0.5V
BATT/FLUID TEMP SEN (A/T FLUID TEMP SENSOR CIRCUIT AND TCM
POWER SOURCE)
EXCEPT FOR EURO-OBD
Description
AT-165

ON BOARD DIAGNOSIS LOGICNJAT0076S03
Diagnostic trouble code Malfunction is detected when ... Check items (Possible cause)
: BATT/FLUID TEMP SEN
TCM receives an excessively low or high
voltage from the sensor.+Harness or connectors
(The sensor circuit is open or shorted.)
+A/T fluid temperature sensor
: 8th judgement flicker
SAT580J
SAT821H
SELF-DIAGNOSIS CODE CONFIRMATION PROCEDURENJAT0076S05After the repair, perform the following procedure to confirm the
malfunction is eliminated.
With CONSULT-IINJAT0076S05011) 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, vehicle speed higher than 10
km/h (6 MPH), throttle opening greater than 1/8 of the full open
position, engine speed higher than 450 rpm and driving for
more than 10 minutes.
Without CONSULT-IINJAT0076S05021) Start engine.
2) Drive vehicle under the following conditions:
Selector lever in ªDº position, vehicle speed higher than 10
km/h (6 MPH), throttle opening greater than 1/8 of the full open
position, engine speed higher than 450 rpm and driving for
more than 10 minutes.
3) Perform self-diagnosis.
Refer to ªSELF-DIAGNOSTIC PROCEDURE (Without
CONSULT-II)º, AT-44.
BATT/FLUID TEMP SEN (A/T FLUID TEMP SENSOR CIRCUIT AND TCM
POWER SOURCE)
EXCEPT FOR EURO-OBD
Description (Cont'd)
AT-166

Wiring Diagram Ð AT Ð BA/FTSNJAT0214
HAT083
BATT/FLUID TEMP SEN (A/T FLUID TEMP SENSOR CIRCUIT AND TCM
POWER SOURCE)
EXCEPT FOR EURO-OBD
Wiring Diagram Ð AT Ð BA/FTS
AT-167

Diagnostic ProcedureNJAT0077
1 CHECK TCM POWER SOURCE
1. Turn ignition switch to ªONº position.
(Do not start engine.)
2. Check voltage between TCM terminals 10, 19, 28 and ground.
Voltage:
Battery voltage
3. Turn ignition switch to ªOFFº position.
4. Check voltage between TCM terminal 28 and ground.
Voltage:
Battery voltage
SAT461J
OK or NG
OK©GO TO 2.
NG©Check the following items:
+Harness for short or open between ignition switch and TCM (Main harness)
+Ignition switch and fuse
Refer to EL-10, ªPOWER SUPPLY ROUTINGº.
BATT/FLUID TEMP SEN (A/T FLUID TEMP SENSOR CIRCUIT AND TCM
POWER SOURCE)
EXCEPT FOR EURO-OBD
Diagnostic Procedure
AT-168