NISSAN ALMERA TINO 2001 Service Repair Manual

SAT021J
DescriptionNLAT0281The CVT fluid temperature sensor detects the CVT fluid tempera-
ture and sends a signal to the TCM.
CONSULT-II REFERENCE VALUE IN DATA MONITOR
MODE
NLAT0281S01Remarks: Specification data are reference values.
Monitor item Condition Specification (Approximately)
CVT temperature sensorCold [20ÉC (68ÉF)]
¯
Hot [80ÉC (176ÉF)]1.5V
¯
0.5V2.5 kW
¯
0.3 kW
TCM TERMINALS AND REFERENCE VALUENLAT0281S02Remarks: Specification data are reference values.
Terminal
No.Wire color Item ConditionJudgement stan-
dard (Approx.)
42 BGround
(CVT fluid tem-
perature sensor)
ÐÐ
47 BRCVT fluid tem-
perature sensorWhen ATF temperature is 20ÉC
(68ÉF).1.5V
When ATF temperature is 80ÉC
(176ÉF).0.5V
ON BOARD DIAGNOSIS LOGICNLAT0281S03
Diagnostic trouble code Malfunction is detected when ... Check items (Possible cause)
: FLUID TEMP SEN
TCM receives an excessively low or high
voltage from the sensor.+Harness or connectors
(The sensor circuit is open or shorted.)
+CVT fluid temperature sensor
: 8th judgement flicker
CVT FLUID TEMPERATURE
SENSOR CIRCUIT
EXCEPT FOR EURO-OBD
Description
AT-170

SAT250K
SAT821HB
SELF-DIAGNOSIS CODE CONFIRMATION PROCEDURENLAT0281S04After the repair, perform the following procedure to confirm the
malfunction is eliminated.
With CONSULT-IINLAT0281S04011) 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 open
position, engine speed higher than 450 rpm and driving for
more than 10 minutes.
Without CONSULT-IINLAT0281S04021) 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-35.
CVT FLUID TEMPERATURE
SENSOR CIRCUIT
EXCEPT FOR EURO-OBD
Description (Cont'd)
AT-171

Wiring Diagram Ð AT Ð FTSNLAT0282MODELS WITH ECM IN ENGINE COMPARTMENTNLAT0282S01
YAT175
CVT FLUID TEMPERATURE
SENSOR CIRCUIT
EXCEPT FOR EURO-OBD
Wiring Diagram Ð AT Ð FTS
AT-172

MODELS WITH ECM IN CABINNLAT0282S02
YAT214
CVT FLUID TEMPERATURE
SENSOR CIRCUIT
EXCEPT FOR EURO-OBD
Wiring Diagram Ð AT Ð FTS (Cont'd)
AT-173

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