Assembly NISSAN ALMERA 2001 Workshop Manual

Diagnostic ProcedureNJAT0301
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 4 and ground.
Resistance:
2.5-5W
SAT895JB
OK or NG
OK©GO TO 2.
NG©1. Remove control valve assembly. Refer to AT-351.
2. Check the following items:
+Line pressure solenoid valve
Refer to ªComponent Inspectionº, AT-245.
+Harness of terminal cord assembly for short or open
DTC P0745 LINE PRESSURE SOLENOID VALVEEURO-OBD
Diagnostic Procedure
AT-242

2 CHECK POWER SOURCE CIRCUIT
1. Turn ignition switch to ªOFFº position.
2. Disconnect TCM harness connector.
3. Check resistance between terminal 4 and TCM harness connector terminal 2.
Resistance:
10-15W
SAT896JB
OK or NG
OK©GO TO 3.
NG©Check the following items:
+Dropping resistor
Refer to ªComponent Inspectionº, AT-245.
+Harness for short or open between TCM terminal 2 and terminal cord assembly (Main
harness)
DTC P0745 LINE PRESSURE SOLENOID VALVEEURO-OBD
Diagnostic Procedure (Cont'd)
AT-243

Diagnostic ProcedureNJAT0305
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 2 and ground.
Resistance:
20-30W
SAT900JB
OK or NG
OK©GO TO 2.
NG©1. Remove control valve assembly. Refer to AT-351.
2. Check the following items:
+Shift solenoid valve A
Refer to ªComponent Inspectionº, AT-251.
+Harness of terminal cord assembly for short or open
DTC P0750 SHIFT SOLENOID VALVE AEURO-OBD
Diagnostic Procedure
AT-249

Diagnostic ProcedureNJAT0309
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 1 and ground.
Resistance:
5-20W
SAT904JB
OK or NG
OK©GO TO 2.
NG©1. Remove control valve assembly. Refer to AT-351.
2. Check the following items:
+Shift solenoid valve B
Refer to ªComponent Inspectionº, AT-257.
+Harness of terminal cord assembly for short or open
DTC P0755 SHIFT SOLENOID VALVE BEURO-OBD
Diagnostic Procedure
AT-255

Diagnostic ProcedureNJAT0317
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 3 and ground.
Resistance:
20-30W
SAT908JB
OK or NG
OK©GO TO 2.
NG©1. Remove control valve assembly. Refer to AT-351.
2. Check the following items:
+Overrun clutch solenoid valve
Refer to ªComponent Inspectionº, AT-273.
+Harness of terminal cord assembly for short or open
DTC P1760 OVERRUN CLUTCH SOLENOID VALVEEURO-OBD
Diagnostic Procedure
AT-271

2 CHECK A/T FLUID TEMPERATURE SENSOR WITH TERMINAL CORD ASSEMBLY
1. Turn ignition switch to ªOFFº position.
2. Disconnect terminal cord assembly connector in engine compartment.
3. Check resistance between terminals 6 and 7 when A/T is cold.
Resistance:
Cold [20ÉC (68ÉF)]
Approximately 2.5 kW
SAT912JB
4. Reinstall any part removed.
OK or NG
OK (With CONSULT-II)©GO TO 3.
OK (Without CONSULT-
II)©GO TO 4.
NG©1. Remove oil pan.
2. Check the following items:
+A/T fluid temperature sensor
Refer to ªComponent Inspectionº, AT-280.
+Harness of terminal cord assembly for short or open
3 CHECK INPUT SIGNAL OF A/T FLUID TEMPERATURE SENSOR (WITH CONSULT-II)
With CONSULT-II
1. Start engine.
2. Select ªECU INPUT SIGNALSº in ªDATA MONITORº mode for ªA/Tº with CONSULT-II.
3. Read out the value of ªFLUID TEMP SEº.
Voltage:
Cold [20ÉC (68ÉF)]®Hot [80ÉC (176ÉF)]:
Approximately 1.5V®0.5V
SAT614J
OK or NG
OK©GO TO 5.
NG©Check the following item:
+Harness for short or open between TCM, ECM and terminal cord assembly (Main har-
ness)
+Ground circuit for ECM
Refer to EC-178, ªTROUBLE DIAGNOSIS FOR POWER SUPPLYº.
DTC BATT/FLUID TEMP SEN (A/T FLUID TEMP SENSOR CIRCUIT AND TCM
POWER SOURCE)
EURO-OBD
Diagnostic Procedure (Cont'd)
AT-278

4 CHECK INPUT SIGNAL OF A/T FLUID TEMPERATURE SENSOR (WITHOUT CONSULT-II)
Without CONSULT-II
1. Start engine.
2. Check voltage between TCM terminal 47 and ground while warming up A/T.
Voltage:
Cold [20ÉC (68ÉF)]®Hot [80ÉC (176ÉF)]:
Approximately 1.5V®0.5V
SAT463J
3. Turn ignition switch to ªOFFº position.
4. Disconnect TCM harness connector.
5. Check resistance between terminal 42 and ground.
Continuity should exist.
SAT464J
OK or NG
OK©GO TO 5.
NG©Check the following item:
+Harness for short or open between TCM, ECM and terminal cord assembly (Main har-
ness)
+Ground circuit for ECM
Refer to EC-178, ªTROUBLE DIAGNOSIS FOR POWER SUPPLYº.
5 CHECK DTC
Perform Diagnostic Trouble Code (DTC) confirmation procedure, AT-275.
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.
DTC BATT/FLUID TEMP SEN (A/T FLUID TEMP SENSOR CIRCUIT AND TCM
POWER SOURCE)
EURO-OBD
Diagnostic Procedure (Cont'd)
AT-279

SAT070K
DescriptionNJAT0323The vehicle speed sensor´MTR is built into the speedometer
assembly. The sensor functions as an auxiliary device to the revo-
lution sensor when it is malfunctioning. The TCM will then use a
signal sent from the vehicle speed sensor´MTR.
TCM TERMINALS AND REFERENCE VALUENJAT0323S01Remarks: Specification data are reference values.
Terminal
No.Wire color Item ConditionJudgement stan-
dard
40 PU/RVehicle speed
sensor
When moving vehicle at 2 to 3 km/h
(1 to 2 MPH) for1m(3ft)ormore.Voltage varies
between less
than 1V and more
than 4.5V
ON BOARD DIAGNOSIS LOGICNJAT0323S02
Diagnostic trouble code Malfunction is detected when ... Check items (Possible cause)
: VHCL SPEED SEN´MTR
TCM does not receive the proper voltage
signal from the sensor.+Harness or connectors
(The sensor circuit is open or shorted.)
+Vehicle speed sensor
: 2nd judgement flicker
DTC VHCL SPEED SEN´MTR VEHICLE SPEED SENSOR´MTREURO-OBD
Description
AT-281

3 CHECK A/T FLUID LEVEL
Check A/T fluid level again.
SAT638A
OK or NG
OK©GO TO 4.
NG©Refill ATF.
4 CHECK A/T FLUID CONDITION
1. Remove oil pan.
2. Check A/T fluid condition.
SAT171B
OK or NG
OK©GO TO 5.
NG©1. Disassemble A/T.
2. Check the following items:
+Forward clutch assembly
+Overrun clutch assembly
+Reverse clutch assembly
5 CHECK SYMPTOM
Check again.
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.
TROUBLE DIAGNOSES FOR SYMPTOMS
4. In ªNº Position, Vehicle Moves (Cont'd)
AT-302

3 CHECK LINE PRESSURE
Check line pressure at idle with selector lever in ªDº position. Refer to ªLine Pressure Testº, AT-84.
SAT494G
OK or NG
OK©GO TO 4.
NG©1. Remove control valve assembly. Refer to AT-351.
2. Check the following items:
+Valves to control line pressure (Pressure regulator valve, pressure modifier valve, pilot
valve and pilot filter)
+Line pressure solenoid valve
4 CHECK SYMPTOM
Check again.
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.
TROUBLE DIAGNOSES FOR SYMPTOMS
5. Large Shock. ªNº®ªRº Position (Cont'd)
AT-304