2001 NISSAN ALMERA TINO engine

Diagnostic ProcedureNLAT0283
1 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 CVT is cold.
Resistance:
Cold [20ÉC (68ÉF)]
Approximately 2.5 kW
SAT229K
4. Reinstall any part removed.
OK or NG
OK (With CONSULT-II)©GO TO 2.
OK (Without CONSULT-
II)©GO TO 3.
NG©Replace CVT assembly.
2 CHECK INPUT SIGNAL OF A/T FLUID TEMPERATURE SENSOR (WITH CONSULT-II)
With CONSULT-II
1. Start engine.
2. Select ªTCM INPUT SIGNALSº in ªDATA MONITORº mode for ªCVTº with CONSULT-II.
3. Read out the value of ªFLUID TEMP SEº.
Voltage:
Cold [20ÉC (68ÉF)]®Hot [80ÉC (176ÉF)]:
Approximately 1.5V®0.5V
SAT271K
OK or NG
OK©GO TO 4.
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 section, ªTROUBLE DIAGNOSIS FOR POWER SUPPLYº.
CVT FLUID TEMPERATURE
SENSOR CIRCUIT
EXCEPT FOR EURO-OBD
Diagnostic Procedure
AT-174

3 CHECK INPUT SIGNAL OF CVT FLUID TEMPERATURE SENSOR (WITHOUT CONSULT-II)
Without CONSULT-II
1. Start engine.
2. Check voltage between TCM terminal 47 and ground while warming up CVT.
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 4.
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 section, ªTROUBLE DIAGNOSIS FOR POWER SUPPLYº.
4 CHECK DTC
Perform Self-diagnosis Code confirmation procedure, AT-171.
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.
CVT FLUID TEMPERATURE
SENSOR CIRCUIT
EXCEPT FOR EURO-OBD
Diagnostic Procedure (Cont'd)
AT-175

DescriptionNLAT0285The engine speed signal is sent from the ECM to the TCM.
TCM TERMINALS AND REFERENCE VALUENLAT0285S01Remarks: Specification data are reference values.
Terminal
No.Wire color Item ConditionJudgement stan-
dard (Approx.)
39 L/OREngine speed
signal
When engine runs at idle speed. 0.5 - 1.5V
ON BOARD DIAGNOSIS LOGICNLAT0285S02
Diagnostic trouble code Malfunction is detected when ... Check item (Possible cause)
: ENGINE SPEED SIG
TCM does not receive the proper voltage
signal from ECM.+Harness or connectors
(The sensor circuit is open or shorted.)
: 9th judgement flicker
SAT250K
SAT823H
SELF-DIAGNOSIS CODE CONFIRMATION PROCEDURENLAT0285S03After the repair, perform the following procedure to confirm the
malfunction is eliminated.
With CONSULT-IINLAT0285S03011) Start engine.
2) Select ªSELF-DIAG RESULTSº mode for CVT 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
throttle position and driving for more than 10 seconds.
Without CONSULT-IINLAT0285S03021) 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
throttle position and driving for more than 10 seconds.
3) Perform self-diagnosis.
Refer to ªSELF-DIAGNOSTIC PROCEDURE (Without
CONSULT-II)º, AT-35.
ENGINE SPEED SIGNALEXCEPT FOR EURO-OBD
Description
AT-176

Wiring Diagram Ð AT Ð ENGSSNLAT0286
YAT178
ENGINE SPEED SIGNALEXCEPT FOR EURO-OBD
Wiring Diagram Ð AT Ð ENGSS
AT-177

Diagnostic ProcedureNLAT0287
1 CHECK DTC WITH ECM
Perform diagnostic test mode II (self-diagnostic results) for engine control. Check ignition signal circuit condition.
OK or NG
OK (With CONSULT-II)©GO TO 2.
OK (Without CONSULT-
II)©GO TO 3.
NG©Check ignition signal circuit for engine control. Refer to EC section, ªIGNITION SIGNALº.
2 CHECK INPUT SIGNAL (With CONSULT-II)
With CONSULT-II
1. Start engine.
2. Select ªTCM INPUT SIGNALSº in ªDATA MONITORº mode for ªCVTº with CONSULT-II.
SAT250K
3. Read out the value of ªENGINE SPEEDº.
Check engine speed changes according to throttle position.
SAT271K
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 section, ªIGNITION SIGNALº.
ENGINE SPEED SIGNALEXCEPT FOR EURO-OBD
Diagnostic Procedure
AT-178

3 CHECK INPUT SIGNAL (Without CONSULT-II)
Without CONSULT-II
1. Start engine.
2. Check voltage between TCM terminal 39 and ground.
Voltage (Idle speed):
Refer to EC section, ªIGNITION SIGNALº.
SAT424JA
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 section, ªIGNITION SIGNALº.
4 CHECK DTC
Perform Self-diagnosis Code confirmation procedure, AT-176.
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.
ENGINE SPEED SIGNALEXCEPT FOR EURO-OBD
Diagnostic Procedure (Cont'd)
AT-179

SAT574J
DescriptionNLAT0288The TCM consists of a microcomputer and connectors for signal
input and output and for power supply. The unit controls the CVT.
ON BOARD DIAGNOSIS LOGICNLAT0288S01
Diagnostic trouble code Malfunction is detected when ... Check item (Possible cause)
: CONTROL UNIT (RAM)
: CONTROL UNIT (ROM)TCM memory (RAM) or (ROM) is mal-
functioning.TCM
SAT250K
SAT252K
DIAGNOSTIC TROUBLE CODE (DTC) CONFIRMATION
PROCEDURE
NLAT0288S02NOTE:
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 CVT with CONSULT-II.
2) Start engine.
3) Run engine for at least 2 seconds at idle speed.
CONTROL UNIT (RAM), CONTROL UNIT (ROM)
Description
AT-180

SAT574J
DescriptionNLAT0241The TCM consists of a microcomputer and connectors for signal
input and output and for power supply. The unit controls the CVT.
ON BOARD DIAGNOSIS LOGICNLAT0241S01
Diagnostic trouble code Malfunction is detected when ... Check item (Possible cause)
: CONT UNIT (EEPROM)TCM memory (EEPROM) is malfunction-
ing.TCM
SAT250K
SAT252K
DIAGNOSTIC TROUBLE CODE (DTC) CONFIRMATION
PROCEDURE
NLAT0241S02NOTE:
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 CVT with CONSULT-II.
2) Start engine.
3) Run engine for at least 2 seconds at idle speed.
CONTROL UNIT (EEPROM)
Description
AT-182