Engine NISSAN ALMERA 2001 Service Manual

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

ON BOARD DIAGNOSIS LOGICNJAT0319S03
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
SAT014K
SAT971J
SAT335HC
DIAGNOSTIC TROUBLE CODE (DTC) CONFIRMATION
PROCEDURE
NJAT0319S04After the repair, perform the following procedure to confirm the
malfunction is eliminated.
With CONSULT-II
1) Start engine.
2) Select ªDATA MONITORº mode for ªA/Tº with CONSULT-II.
3) Drive vehicle under the following conditions:
Selector lever in ªDº, vehicle speed higher than 20 km/h (12
MPH).
Without CONSULT-II
1) Start engine.
2) Drive vehicle under the following conditions:
Selector lever in ªDº, vehicle speed higher than 20 km/h (12
MPH).
3) Perform self-diagnosis.
Refer to TCM SELF-DIAGNOSTIC PROCEDURE (No Tools),
AT-63.
DTC BATT/FLUID TEMP SEN (A/T FLUID TEMP SENSOR CIRCUIT AND TCM
POWER SOURCE)
EURO-OBD
Description (Cont'd)
AT-275

Diagnostic ProcedureNJAT0321
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.
DTC BATT/FLUID TEMP SEN (A/T FLUID TEMP SENSOR CIRCUIT AND TCM
POWER SOURCE)
EURO-OBD
Diagnostic Procedure
AT-277

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

SAT014K
SAT971J
SAT329HA
DIAGNOSTIC TROUBLE CODE (DTC) CONFIRMATION
PROCEDURE
NJAT0323S03CAUTION:
+Always drive vehicle at a safe speed.
+If conducting this ªDTC CONFIRMATION PROCEDUREº
again, always turn ignition switch ªOFFº and wait at least
5 seconds before continuing.
After the repair, perform the following procedure to confirm the
malfunction is eliminated.
With CONSULT-II
1) Turn ignition switch ªONº and select ªDATA MONITORº mode
for ªA/Tº with CONSULT-II.
2) Start engine and accelerate vehicle from 0 to 25 km/h (0 to 16
MPH).
Without CONSULT-II
1) Start engine.
2) Drive vehicle under the following conditions:
Selector lever in ªDº and vehicle speed higher than 25 km/h (16
MPH).
3) Perform self-diagnosis.
Refer to TCM SELF-DIAGNOSTIC PROCEDURE (No Tools),
AT-63.
DTC VHCL SPEED SEN´MTR VEHICLE SPEED SENSOR´MTREURO-OBD
Description (Cont'd)
AT-282

Diagnostic ProcedureNJAT0325
1 CHECK INPUT SIGNAL
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 ªVHCL/S SE´MTRº while driving.
Check the value changes according to driving speed.
SAT614J
Without CONSULT-II
1. Start engine.
2. Check voltage between TCM terminal 40 and ground while driving at 2 to 3 km/h (1 to 2 MPH) for1m(3ft)ormore.
Voltage:
Voltage varies between less than 1V and more than 4.5V.
SAT465JB
OK or NG
OK©GO TO 2.
NG©Check the following items:
+Vehicle speed sensor and ground circuit for vehicle speed sensor
Refer to EL-144, ªMETERS AND GAUGESº.
+Harness for short or open between TCM and vehicle speed sensor (Main harness)
2 CHECK DTC
Perform Diagnostic Trouble Code (DTC) confirmation procedure, AT-282.
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 VHCL SPEED SEN´MTR VEHICLE SPEED SENSOR´MTREURO-OBD
Diagnostic Procedure
AT-285

SAT574J
DescriptionNJAT0326The TCM consists of a microcomputer and connectors for signal
input and output and for power supply. The unit controls the A/T.
ON BOARD DIAGNOSIS LOGICNJAT0326S01
Diagnostic Trouble Code No. Malfunction is detected when .... Check Item (Possible Cause)
: CONTROL UNIT (RAM),
CONTROL UNIT (ROM)TCM memory (RAM) or (ROM) is mal-
functioning.+TCM
SAT014K
SAT971J
DIAGNOSTIC TROUBLE CODE (DTC) CONFIRMATION
PROCEDURE
NJAT0326S02NOTE:
If ªDIAGNOSTIC TROUBLE CODE CONFIRMATION PROCE-
DUREº has been previously conducted, always turn ignition
switch ªOFFº and wait at least 5 seconds before conducting
the next test.
With CONSULT-II
1) Turn ignition switch ªONº and select ªDATA MONITORº mode
for A/T with CONSULT-II.
2) Start engine.
3) Run engine for at least 2 seconds at idle speed.
Diagnostic ProcedureNJAT0327
1 INSPECTION START (WITH CONSULT-II)
With CONSULT-II
1. Turn ignition switch ªONº and select ªSELF DIAGNOSISº mode for A/T with CONSULT-II.
2. Touch ªERASEº.
©GO TO 2.
DTC CONTROL UNIT (RAM), CONTROL UNIT (ROM)
Description
AT-286

SAT574J
DescriptionNJAT0328The TCM consists of a microcomputer and connectors for signal
input and output and for power supply. The unit controls the A/T.
ON BOARD DIAGNOSIS LOGICNJAT0328S01
Diagnostic trouble code Malfunction is detected when ... Check item (Possible cause)
: CONT UNIT (EEP ROM) TCM memory (EEP ROM) is malfunction-
ing.+TCM
SAT014K
SAT971J
DIAGNOSTIC TROUBLE CODE (DTC) CONFIRMATION
PROCEDURE
NJAT0328S02NOTE:
If ªDIAGNOSTIC TROUBLE CODE CONFIRMATION PROCE-
DUREº has been previously conducted, always turn ignition
switch ªOFFº and wait at least 5 seconds before conducting
the next test.
With CONSULT-II
1) Turn ignition switch ªONº and select ªDATA MONITORº mode
for A/T with CONSULT-II.
2) Start engine.
3) Run engine for at least 2 seconds at idle speed.
DTC CONTROL UNIT (EEP ROM)
Description
AT-288

SAT466J
1. O/D OFF Indicator Lamp Does Not Come On=NJAT0331SYMPTOM:
O/D OFF indicator lamp does not come on for about 2 seconds
when turning ignition switch to ªONº.
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
SAT467J
3. Turn ignition switch to ªOFFº position.
4. Check voltage between TCM terminal 28 and ground.
Voltage: Battery voltage
OK or NG
OK©GO TO 2.
NG©Check the following items:
+Harness for short or open between ignition switch and TCM terminals 10, 19 and 28
(Main harness).
+Refer to ªWiring Diagram Ð AT Ð MAINº, AT-123.
+Ignition switch and fuse Refer to EL-10, ªPOWER SUPPLY ROUTINGº.
TROUBLE DIAGNOSES FOR SYMPTOMS
1. O/D OFF Indicator Lamp Does Not Come On
AT-296