2002 NISSAN TERRANO Service Repair Manual

Terminal
No.Item ConditionJudgement
standard
10 Power source
When turning ignition switch to ªONº. Battery voltage
When turning ignition switch to
ªOFFº.Approximately 0V
11 Shift solenoid valve A
When shift solenoid valve A oper-
ates.
(When driving in ªD
1ºorªD4º.)Battery voltage
When shift solenoid valve A does not
operate.
(When driving in ªD
2ºorªD3º.)Approximately 0V
12 Shift solenoid valve BWhen shift solenoid valve B oper-
ates.
(When driving in ªD
1ºorªD2º.)Battery voltage
When shift solenoid valve B does
not operate.
(When driving in ªD
3ºorªD4º.)Approximately 0V
16Closed throttle position
switch
[in throttle (accelerator)
position switch]
When releasing accelerator pedal
after warming up engine.Battery voltage
When depressing accelerator pedal
after warming up engine.Approximately 0V
17Wide open throttle posi-
tion switch
[in throttle (accelerator)
position switch]When depressing accelerator pedal
more than half-way after warming up
engine.Battery voltage
When releasing accelerator pedal
after warming up engine.Approximately 0V
18A/T mode switch
ªSNOWºWhen setting A/T mode switch in
ªSNOWº position.Battery voltage
When setting A/T mode switch in
other position.Approximately 0V
19 Power source Same as No. 104
20Overrun clutch solenoid
valve
When overrun clutch solenoid valve
operates.Battery voltage
When overrun clutch solenoid valve
does not operate.Approximately 0V
22 Overdrive control switch
When setting overdrive control
switch in ªONº positionBattery voltage
When setting overdrive control
switch in ªOFFº position1V or less
26Park/neutral ª1º position
switchWhen setting selector lever to ª1º
position.Battery voltage
When setting selector lever to other
positions.Approximately 0V
27Park/neutral ª2º position
switchWhen setting selector lever to ª2º
position.Battery voltage
When setting selector lever to other
positions.Approximately 0V
28 Ground Ð Ð
TROUBLE DIAGNOSIS Ð General Description
TCM Terminals and Reference Value (Cont'd)
AT-47

Terminal
No.Item ConditionJudgement
standard
28Power source
(Back-up)
or
When turning ignition switch to
ªOFFº.Battery voltage
When turning ignition switch to ªONº. Battery voltage
29Revolution sensor
(Measure in AC rang)
When vehicle cruises at 30 km/h (19
MPH).1V or more
Voltage rises gradually in
response to vehicle
speed.
When vehicle parks. 0V
34Park/neutral ªDº position
switch
When setting selector lever to ªDº
position.Battery voltage
When setting selector lever to other
positions.Approximately 0V
35Park/neutral ªRº position
switchWhen setting selector lever to ªRº
position.Battery voltage
When setting selector lever to other
positions.Approximately 0V
36Park/neutral ªNº or ªPº
position switchWhen setting selector lever to ªNº or
ªPº position.Battery voltage
When setting selector lever to other
positions.Approximately 0V
39 Engine speed signal
When engine runs at idle speed. 0.8V
When engine runs at 2,000 rpm. Approximately 2.2V
40 Vehicle speed sensor
When moving vehicle at 2 to 3 km/h
(1 to 2 MPH) for1m(3ft)ormore.Voltage varies between
less than 1V and more
than 4.5V
42Throttle (accelerator)
position sensor
(Power source)
Ð 4.5 - 5.5V
42 Ground Ð Ð
43 SPORT indicator lamp
When setting A/T mode switch in
ªSPORTº position.Approximately 0V
When setting A/T mode switch in
other position.Battery voltage
44A/T mode switch
ªSPORTºWhen setting A/T mode switch in
ªSPORTº position.Battery voltage
When setting A/T mode switch in
other position.Approximately 0V
47A/T fluid temperature
sensorWhen ATF temperature is 20ÉC
(68ÉF).Approximately 1.5V
When ATF temperature is 80ÉC
(176ÉF).Approximately 0.5V
TROUBLE DIAGNOSIS Ð General Description
TCM Terminals and Reference Value (Cont'd)
AT-48

Wiring Diagram Ð AT Ð VSSA/T
YAT262
TROUBLE DIAGNOSIS FOR VHCL SPEED SEN×A/T
AT-49

Vehicle Speed Sensor×A/T (Revolution sensor)
DESCRIPTION
The revolution sensor detects the revolution of the out put shaft
parking pawl lock gear and emits a pulse signal. The pulse signal
is sent to the TCM which converts it into vehicle speed.
ON BOARD DIAGNOSIS LOGIC
Diagnostic trouble code Malfunction is detected when ...Check items
(Possible cause)
: VHCL SPEED SEN×A/T
TCM does not receive the proper volt-
age signal from the sensor.IHarness or connectors
(The sensor circuit is open or
shorted.)
IRevolution sensor
: 1st judgement flicker
SELF-DIAGNOSIS CODE CONFIRMATION PROCEDURE
After the repair, perform the following procedure to confirm the
malfunction is eliminated.
1) Start engine.
2) Select ªSELF-DIAG RESULTSº mode with CONSULT-II.
3) Drive vehicle under the following conditions:
Selector lever in ªDº position, vehicle speed higher than
30 km/h (19 MPH), throttle opening greater than 1/8 of
the full throttle position and driving for more than 5 sec-
onds.
------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------OR------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------
1) Start engine.
2) Drive vehicle under the following conditions:
Selector lever in ªDº position, vehicle speed higher than
30 km/h (19 MPH), throttle opening greater than 1/8 of
the full throttle position and driving for more than 5 sec-
onds.
3) Perform self-diagnosis.
Refer to SELF-DIAGNOSTIC PROCEDURE (Without
CONSULT-II), AT-15.
YAT336
SAT252K
SAT806H
TROUBLE DIAGNOSIS FOR VHCL SPEED SEN×A/T
AT-50

DIAGNOSTIC PROCEDURE
CHECK REVOLUTION SENSOR.
Refer to ªCOMPONENT INSPECTIONº
below.
OK
ENG
Repair or replace revolu-
tion sensor.
CHECK INPUT SIGNAL.
1. Start engine.
2. Select ªECU INPUT SIGNALSº in
Data Monitor.
3. Read out the value of ªVHCL/S
SE×A/Tº while driving.
Check the value changes accord-
ing to driving speed.
-----------------------------------------------------------------------------------------------------------------------OR -----------------------------------------------------------------------------------------------------------------------
1. Start engine.
2. Check voltage between TCM ter-
minalq
42and ground while driving.
(Measure in AC range.)
Voltage:
At 0 km/h (0 MPH):
0V
At 30 km/h (19 MPH):
1V or more
(Voltage rises gradually in
response to vehicle speed.)
OK
ENG
Check the following items:
IHarness for short or
open between TCM and
revolution sensor (Main
harness)
IHarness for short or
open between revolution
sensor and ECM (Main
harness)
IGround circuit for ECM
Refer to EC section
(ªTROUBLE DIAGNOSIS
FOR POWER SUPPLYº).
Perform ªSELF-DIAGNOSIS CODE CON-
FIRMATION PROCEDUREº.
OK
ENG
1. Perform TCM input/
output signal inspection.
2. If NG, recheck TCM pin
terminals for damage or
loose connection with
harness connector.
INSPECTION END
COMPONENT INSPECTION
Revolution sensor
IFor removal, refer to AT-114.
ICheck resistance between terminalsq
1,q2andq3.
Terminal No. Resistance
q
1q2500 - 650W
q
2q3No continuity
q
1q3No continuity
YAT297
NAT218
H
H
H
TROUBLE DIAGNOSIS FOR VHCL SPEED SEN×A/T
Vehicle Speed Sensor×A/T (Revolution sensor)
(Cont'd)
AT-51

Wiring Diagram Ð AT Ð VSSMTR
LHD MODELS
YAT263
TROUBLE DIAGNOSIS FOR VHCL SPEED SEN×MTR
AT-52

RHD MODELS
YAT264
TROUBLE DIAGNOSIS FOR VHCL SPEED SEN×MTR
Wiring Diagram Ð AT Ð VSSMTR (Cont'd)
AT-53

Vehicle Speed Sensor×MTR
DESCRIPTION
The vehicle speed sensor×MTR is built into the speedometer
assembly. The sensor functions as an auxiliary device to the revo-
lution sensor when it is malfunctioning. The TCM will then use a
signal sent from the vehicle speed sensor×MTR.
ON BOARD DIAGNOSIS LOGIC
Diagnostic trouble code Malfunction is detected when ...Check items
(Possible cause)
: VHCL SPEED SEN×MTR
TCM does not receive the proper volt-
age signal from the sensor.IHarness or connectors
(The sensor circuit is open or
shorted.)
IVehicle speed sensor
: 2nd judgement flicker
SELF-DIAGNOSIS CODE CONFIRMATION PROCEDURE
After the repair, perform the following procedure to confirm the
malfunction is eliminated.
1) Start engine.
2) Select ªSELF-DIAG RESULTSº mode with CONSULT-II.
3) Drive vehicle under the following conditions:
Selector lever in ªDº position and vehicle speed higher
than 20 km/h (12 MPH).
------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------OR------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------
1) Start engine.
2) Drive vehicle under the following conditions:
Selector lever in ªDº position and vehicle speed higher
than 20 km/h (12 MPH).
3) Perform self-diagnosis.
Refer to SELF-DIAGNOSTIC PROCEDURE (Without
CONSULT-II), AT-15.
NAT238
SAT807H
TROUBLE DIAGNOSIS FOR VHCL SPEED SEN×MTR
AT-54