NISSAN PRIMERA 1999 Electronic Manual Online

DescriptionNCAT0070IThrottle position sensor
The throttle position sensor detects the throttle valve position
and sends a signal to the TCM.
IThrottle position switch
Consists of a wide open throttle position switch and a closed
throttle position switch.
The wide open throttle position switch sends a signal to the
TCM when the throttle valve is open at least 1/2 of the full
throttle position. The closed throttle position switch sends a
signal to the TCM when the throttle valve is fully closed.
CONSULT-II REFERENCE VALUE IN DATA MONITOR
MODE
NCAT0070S01Remarks: Specification data are reference values.
Monitor item Condition Specification
Throttle position sensorFully-closed throttleApproximately 0.5V
Fully-open throttleApproximately 4V
TCM TERMINALS AND REFERENCE VALUENCAT0070S02Remarks: Specification data are reference values.
Terminal
No.Wire color Item ConditionJudgement
standard
16 YClosed throttle
position switch
(in throttle position
switch)
When releasing accelerator pedal
after warming up engine.Battery voltage
When depressing accelerator pedal
after warming up engine.Approx. 0V
17 LGWide open throttle
position switch
(in throttle position
switch)When depressing accelerator pedal
more than half-way after warming
up engine.Battery voltage
When releasing accelerator pedal
after warming up engine.Approx. 0V
32 GThrottle position
sensor
(Power source)When turning ignition switch to
ªONº.4.5 - 5.5V
When turning ignition switch to
ªOFFº.Approx. 0V
41 GYThrottle position
sensorWhen depressing accelerator pedal
slowly after warming up engine.
(Voltage rises gradually in
response to throttle position.)Fully-closed
throttle:
Approximately
0.3V
Fully-open
throttle:
Approximately
3V
42 BGround
(Throttle position
sensor)ÐÐ
SAT413J Throttle position
sensor and throttle
position switch
DTC P1705 THROTTLE POSITION SENSOR
Description
AT-79

ON BOARD DIAGNOSIS LOGICNCAT0070S03
Diagnostic trouble code Malfunction is detected when ... Check items (Possible cause)
: TP SEN/CIRC A/T
TCM receives an excessively low or high
voltage from the sensor.IHarness or connectors
(The sensor circuit is open or shorted.)
IThrottle position sensor
IThrottle position switch
: P1705
: MI Code No. 1705
DIAGNOSTIC TROUBLE CODE (DTC) CONFIRMATION
PROCEDURE
NCAT0070S04CAUTION:
Always drive vehicle at a safe speed.
NOTE:
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.
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 ªCVTº with CONSULT-II.
2) Check the following.
Acceleratr pedal
conditionTHRTL POS SEN CLOSED THL/SW W/O THRL/P×SW
Fully released Less than 0.5V ON OFF
Partially
depressed0.5 - 1.9V OFF OFF
Fully depressed 1.9 - 4.0V OFF ON
If the check result is NG, go to ªDIAGNOSTIC PROCEDUREº,
AT-82.
If the check result is OK, go to following step.
3) Turn ignition switch ªONº and select ªDATA MONITORº mode
for ªENGINEº with CONSULT-II.
4) Start engine and maintain the following conditions for at least
5 consecutive seconds. Then release accelerator pedal com-
pletely.
VHCL SPEED SE: 10 km/h (6 MPH) or more
THRTL POSI SEN: Approximately 3V or less
Selector lever: D position
If the check result is NG, go to ªDIAGNOSTIC PROCEDUREº,
AT-82.
With GST
Follow the procedure ªWith CONSULT-IIº.
SAT651J
SAT971J
SAT654J
DTC P1705 THROTTLE POSITION SENSOR
Description (Cont'd)
AT-80

Wiring Diagram Ð AT Ð TPSNCAT0212
YAT252
DTC P1705 THROTTLE POSITION SENSOR
Wiring Diagram Ð AT Ð TPS
AT-81

Diagnostic ProcedureNCAT0071
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. Turn ignition switch to ªONº position.
(Do not start engine.)
2. Select ªECU INPUT SIGNALSº in ªDATA MONITORº mode for ªCVTº with CONSULT-II.
3. Read out the value of ªTHRTL POS SENº.
Voltage:
Fully-closed throttle:
Approximately 0.5V
Fully-open throttle:
Approximately 4V
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)
3 CHECK INPUT SIGNAL (Without CONSULT-II)
Without CONSULT-II
1. Turn ignition switch to ªONº position.
(Do not start engine.)
2. 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)
DTC P1705 THROTTLE POSITION SENSOR
Diagnostic Procedure
AT-82

4 CHECK THROTTLE POSITION SWITCH CIRCUIT (With CONSULT-II)
With CONSULT-II
1. Turn ignition switch to ªONº position.
(Do not start engine.)
2. Select ªECU INPUT SIGNALSº in ªDATA MONITORº mode for ªCVTº with CONSULT-II.
3. 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.
OK or NG
OK©GO TO 6.
NG©Check the following items:
IThrottle position switch Ð Refer to ªComponents Inspectionº, AT-85.
IHarness for short or open between ignition switch and throttle position switch (Main
harness)
IHarness for short or open between throttle position switch and TCM (Main harness)
Accelerator pedal
conditionData monitor
CLOSED THL/SW W/O THRL/P-SW
ReleasedON OFF
Fully depressedOFF ON
MTLB0011
DTC P1705 THROTTLE POSITION SENSOR
Diagnostic Procedure (Cont'd)
AT-83

5 CHECK THROTTLE POSITION SWITCH CIRCUIT (Without CONSULT-II)
Without CONSULT-II
1. Turn ignition switch to ªONº position.
(Do not start engine.)
2. Check voltage between TCM terminals 16, 17 and ground while depressing, and releasing accelerator pedal slowly. (After warming up
engine)
SAT454J
OK or NG
OK©GO TO 6.
NG©Check the following items:
IThrottle position switch Ð Refer to ªComponents Inspectionº, AT-85.
IHarness for short or open between ignition switch and throttle position switch (Main
harness)
IHarness for short or open between throttle position switch and TCM (Main harness)
Accelerator pedal
conditionVoltage
Terminal No. 16 Terminal No. 17
ReleasedBattery voltage 1V or less
Fully depressed1V or less Battery voltage
MTBL0137
6 CHECK DTC
Perform Diagnostic Trouble Code (DTC) confirmation procedure, AT-80.
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 P1705 THROTTLE POSITION SENSOR
Diagnostic Procedure (Cont'd)
AT-84

Component Inspection=NCAT0072THROTTLE POSITION SWITCHNCAT0072S01Closed Throttle Position Switch (Idle position)NCAT0072S0101ICheck continuity between terminals 5 and 6.
Accelerator pedal condition Continuity
ReleasedYe s
DepressedNo
ITo adjust closed throttle position switch, refer to EC section
(ªBasic Inspectionº, ªTROUBLE DIAGNOSIS Ð Basic Inspec-
tionº).
Wide Open Throttle Position SwitchNCAT0072S0102ICheck continuity between terminals 5 and 4.
Accelerator pedal condition Continuity
ReleasedNo
DepressedYe s
SAT688J Throttle position switch
harness connector
SAT689J Throttle position switch
harness connector
DTC P1705 THROTTLE POSITION SENSOR
Component Inspection
AT-85

DescriptionNCAT0224IThe step motor is ON/OFF of 4 aspects changes 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
NCAT0224S01Remarks: 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 VALUENCAT0224S02Remarks: Specification data are reference values.
Terminal
No.Wire color Item ConditionJudgement
standard
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.
ICONSULT-II cable connect to data link connector.
IThis 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 LOGICNCAT0224S03
Diagnostic trouble code Malfunction is detected when ... Check items (Possible cause)
: STEP MOTOR/CIRC
When in operating step motor ON and
OFF, there is no proper change in the
voltage of the terminal TCM which corre-
sponds to it.IHarness or connectors
(The step motor circuit is open or
shorted.)
IStep motor
: P1777
: MI Code No. 1777
DTC P1777 STEP MOTOR Ð CIRCUIT
Description
AT-86

DIAGNOSTIC TROUBLE CODE (DTC) CONFIRMATION
PROCEDURE
NCAT0224S04CAUTION:
IAlways drive vehicle at a safe speed.
IBe careful not to rev engine into the red zone on the
tachometer.
NOTE:
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.
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 ªENGINEº with CONSULT-II.
2) Drive vehicle for at least 5 consecutive seconds.
If the check result is ªNGº, go to ªDiagnostic Procedureº,
AT-89.
With GST
Follow the procedure ªWith CONSULT-IIº.
SAT651J
SAT654J
DTC P1777 STEP MOTOR Ð CIRCUIT
Description (Cont'd)
AT-87

Wiring Diagram Ð AT Ð STMNCAT0225
YAT208
TCM
(TRANSMISSION
CONTROL MODULE)
: Detectable line for DTC
: Non-detectable line for DTC
CONTROL
VA LV E
(STEP MOTOR)
DTC P1777 STEP MOTOR Ð CIRCUIT
Wiring Diagram Ð AT Ð STM
AT-88