NISSAN ALMERA TINO 2001 Service Repair Manual

MODELS WITH ECM IN CABINNLAT0258S02
YAT217
THROTTLE POSITION SENSOREXCEPT FOR EURO-OBD
Wiring Diagram Ð AT Ð TPS (Cont'd)
AT-140

Diagnostic ProcedureNLAT0259
1 CHECK DTC WITH ECM
Perform diagnostic test mode II (self-diagnostic results) for engine control.
Refer to EC SECTION , ªMalfunction Indicator (MI)º, ªON BOARD DIAGNOSTIC SYSTEM DESCRIPTIONº.
OK or NG
OK (With CONSULT-II)©GO TO 2.
OK (Without CONSULT-
II)©GO TO 3.
NG©Check throttle position sensor circuit for engine control. Refer to EC section , ªDTC
P0120 THROTTLE POSITION SENSORº.
2 CHECK INPUT SIGNAL (WITH CONSULT-II)
With CONSULT-II
1. Apply vacuum to the throttle opener then check the following. Refer from step 1 to 5 of ªPreparationº, ªSELF-DIAG-
NOSTIC PROCEDURE (Without CONSULT-II)º, AT-35.
2. Turn ignition switch to ªONº position.
(Do not start engine.)
3. Select ªTCM INPUT SIGNALSº in ªDATA MONITORº mode for ªCVTº with CONSULT-II.
SAT250K
4. Read out the value of ªTHRTL POSI SENº.
Voltage:
Fully-closed throttle:
Approximately 0.5V
Fully-open throttle:
Approximately 4V
SAT236K
OK or NG
OK©GO TO 4.
NG©Check harness for short or open between ECM and TCM regarding throttle position sen-
sor circuit. (Main harness)
THROTTLE POSITION SENSOREXCEPT FOR EURO-OBD
Diagnostic Procedure
AT-141

3 CHECK INPUT SIGNAL (WITHOUT CONSULT-II)
Without CONSULT-II
1. Apply vacuum to the throttle opener then check the following. Refer to steps 1 to 5 of ªPreparationº, ªSELF-DIAGNOS-
TIC PROCEDURE (Without CONSULT-II)º, AT-35.
2. Turn ignition switch to ªONº position.
(Do not start engine.)
3. Check voltage between TCM terminals 41 and 42 while accelerator pedal is depressed slowly.
Voltage:
Fully-closed throttle valve:
Approximately 0.5V
Fully-open throttle valve:
Approximately 4V
(Voltage rises gradually in response to throttle position)
SAT453J
OK or NG
OK©GO TO 5.
NG©Check harness for short or open between ECM and TCM regarding throttle position sen-
sor circuit. (Main harness)
THROTTLE POSITION SENSOREXCEPT FOR EURO-OBD
Diagnostic Procedure (Cont'd)
AT-142

4 CHECK THROTTLE POSITION SWITCH CIRCUIT (WITH CONSULT-II)
With CONSULT-II
1. Apply vacuum to the throttle opener, then check the following. Refer to steps 1 to 5 of ªPreparationº, ªSELF-DIAGNOS-
TIC PROCEDURE (Without CONSULT-II)º, AT-35.
2. Turn ignition switch to ªONº position.
(Do not start engine.)
3. Select ªTCM INPUT SIGNALSº in ªDATA MONITORº mode for ªCVTº with CONSULT-II.
4. Read out ªCLOSED THL/SWº and ªW/O THRL/P-SWº depressing and releasing accelerator pedal.
Check the signal of throttle position switch is indicated properly.
MTBL0011
SAT264K
OK or NG
OK©GO TO 6.
NG©Check the following items:
+Throttle position switch Ð Refer to ªComponents Inspectionº, AT-145.
+Harness for short or open between ignition switch and throttle position switch (Main
harness)
+Harness for short or open between throttle position switch and TCM (Main harness)
THROTTLE POSITION SENSOREXCEPT FOR EURO-OBD
Diagnostic Procedure (Cont'd)
AT-143

5 CHECK THROTTLE POSITION SWITCH CIRCUIT (WITHOUT CONSULT-II)
Without CONSULT-II
1. Apply vacuum to the throttle opener, then check the following. Refer to steps 1 to 5 of ªPreparationº, ªSELF-DIAGNOS-
TIC PROCEDURE (Without CONSULT-II)º, AT-35.
2. Turn ignition switch to ªONº position.
(Do not start engine.)
3. Check voltage between TCM terminals 16, 17 and ground while depressing, and releasing accelerator pedal slowly.
(After warming up engine)
MTBL0137
SAT454JA
OK or NG
OK©GO TO 6.
NG©Check the following items:
+Throttle position switch Ð Refer to ªComponents Inspectionº, AT-145.
+Harness for short or open between ignition switch and throttle position switch (Main
harness)
+Harness for short or open between throttle position switch and TCM (Main harness)
6 CHECK DTC
Perform Self-diagnosis Code confirmation procedure, AT-138.
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.
THROTTLE POSITION SENSOREXCEPT FOR EURO-OBD
Diagnostic Procedure (Cont'd)
AT-144

SAT851JA
Component Inspection=NLAT0260THROTTLE POSITION SWITCHNLAT0260S01Closed Throttle Position Switch (Idle position)NLAT0260S0101+Check continuity between terminals 4 and 5.
[Refer to ªPreparationº, ªSELF-DIAGNOSTIC PROCEDURE
(Without CONSULT-II)º, AT-35.]
Accelerator pedal condition Continuity
Released Yes
Depressed No
+To adjust closed throttle position switch, refer to EC section,
(ªBasic Inspectionº, ªTROUBLE DIAGNOSIS Ð BASIC
INSPECTIONº.)
SAT852JA
Wide Open Throttle Position SwitchNLAT0260S0102+Check continuity between terminals 5 and 6.
Accelerator pedal condition Continuity
Released No
Depressed Yes
THROTTLE POSITION SENSOREXCEPT FOR EURO-OBD
Component Inspection
AT-145

DescriptionNLAT0261The step motor is turned ON/OFF 4 times according to the signal
from TCM. As a result, the flow of line pressure to primary pulley
is changed and pulley ratio is controlled.
CONSULT-II REFERENCE VALUE IN DATA MONITOR
MODE
NLAT0261S05Remarks: Specification data are reference values.
Monitor item Condition Specification
Step motorThe vehicle runs a safe condition and
press/depress accelerator pedal.ON/OFF
TCM TERMINALS AND REFERENCE VALUENLAT0261S01Remarks: Specification data are reference values.
Terminal
No.Wire color Item ConditionJudgement stan-
dard (Approx.)
11 P U
Step motorWithin 2 seconds after key switch ªONº, the time measurement by
using the pulse width measurement function (Hi level) of CON-
SULT-II.
+CONSULT-II cable connect to data link connector.
+This inspection cannot be measured by circuit tester.30.0 msec
12 L/W10.0 msec
20 L/Y30.0 msec
21 P/L10.0 msec
ON BOARD DIAGNOSIS LOGICNLAT0261S02
Diagnostic trouble code Malfunction is detected when ... Check items (Possible cause)
: STEP MOTOR TCM detects an improper voltage drop
when it tries to operate the solenoid
valve.+Harness or connectors
(The solenoid circuit is open or shorted.)
+Stepping motor circuit
: 4th judgement flicker
SAT250K
SAT809HA
SELF-DIAGNOSIS CODE CONFIRMATION PROCEDURENLAT0261S03After the repair, perform the following procedure to confirm the
malfunction is eliminated.
With CONSULT-IINLAT0261S03011) Start engine.
2) Select ªSELF-DIAG RESULTSº mode for CVT with CONSULT-
II.
3) Drive vehicle in D position.
Without CONSULT-IINLAT0261S03021) Start engine.
2) Drive vehicle in D position.
3) Perform self-diagnosis.
Refer to ªSELF-DIAGNOSTIC PROCEDURE (Without
CONSULT-II)º, AT-35.
STEPPING MOTOR Ð CIRCUITEXCEPT FOR EURO-OBD
Description
AT-146

Wiring Diagram Ð AT Ð STMNLAT0262
YAT182
STEPPING MOTOR Ð CIRCUITEXCEPT FOR EURO-OBD
Wiring Diagram Ð AT Ð STM
AT-147

Diagnostic ProcedureNLAT0265
1 CHECK POWER SOURCE CIRCUIT
1. Turn ignition switch to ªONº position.
2. Check ªSELF-DIAG RESULTSº with CONSULT-II.
3. If ªCVT SAFE FUNCTIONº activate, refer to ªCVT SAFE FUNCTIONº, AT-125.
4. Turn ignition switch to ªOFFº position.
5. Disconnect TCM harness connector.
6. Check continuity between terminal 2, 3, 4, 5 and TCM harness connector terminal 11, 12, 20, 21.
Continuity should exist.
SAT655JA
If OK, check harness for short to ground and short to power.
7. Reinstall any part removed.
OK or NG
OK©GO TO 2.
NG©Repair open circuit or short to ground or short to power in harness or connectors.
2 CHECK DTC
Perform ªSELF-DIAGNOSIS CODE CONFIRMATION PROCEDUREº, AT-146.
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.
STEPPING MOTOR Ð CIRCUITEXCEPT FOR EURO-OBD
Diagnostic Procedure
AT-148

SAT690JA
Component Inspection=NLAT0266STEP MOTORNLAT0266S01Resistance CheckNLAT0266S0101+Check resistance between terminals.
Control valve Terminal No. Resistance (Approx.)
Step motor2 and 3
28W
4 and 5
2 and ground
14W 3 and ground
4 and ground
5 and ground
STEPPING MOTOR Ð CIRCUITEXCEPT FOR EURO-OBD
Component Inspection
AT-149