2002 NISSAN TERRANO engine

Shift Solenoid Valve B
DESCRIPTION
Shift solenoid valves A and B are turned ªONº or ªOFFº by the TCM
in response to signals sent from the park/neutral position switch,
vehicle speed and throttle (accelerator) position sensors. Gears will
then be shifted to the optimum position.
Gear position1234
Shift solenoid valve A ON OFF OFF ON
Shift solenoid valve B ON ON OFF OFF
ON BOARD DIAGNOSIS LOGIC
Diagnostic trouble code Malfunction is detected when ...Check items
(Possible cause)
: SHIFT SOLENOID/V B
TCM detects an improper voltage drop
when it tries to operate the solenoid
valve.IHarness or connectors
(The solenoid circuit is open or
shorted.)
IShift solenoid valve B
: 5th 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 in D
1,D2,D3position.
------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------OR------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------
1) Start engine.
2) Drive vehicle in D
1,D2,D3position.
3) Perform self-diagnosis.
Refer to SELF-DIAGNOSTIC PROCEDURE (Without
CONSULT-II), AT-15.
SAT341H
SAT812H
TROUBLE DIAGNOSIS FOR SHIFT SOLENOID/V B
AT-66

DIAGNOSTIC PROCEDURE
CHECK GROUND CIRCUIT.
1. Turn ignition switch to ªOFFº position.
2. Disconnect terminal cord assembly con-
nector in engine compartment.
3. Check resistance between terminalq
1
and ground.
Resistance: 20 - 40W
OK
ENG
1. Remove control valve
assembly. Refer to
AT-139.
2. Check the following
items:
IShift solenoid valve B
Refer to ªCOMPONENT
INSPECTIONº below.
IHarness of terminal cord
assembly for short or
open
CHECK POWER SOURCE CIRCUIT.
1. Turn ignition switch to ªOFFº position.
2. Disconnect TCM harness connector.
3. Check resistance between terminalq
1
and TCM harness connector terminal
q
12.
Resistance:
Approximately 0W
If OK, check harness for short to
ground and short to power.
4. Reinstall any part removed.
OK
ENG
Repair open circuit or short
to ground or short to power
in harness or connector.
Perform ªSELF-DIAGNOSIS CODE CON-
FIRMATION PROCEDUREº, AT-66.
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
Shift solenoid valve B
IFor removal, refer to AT-139.
Resistance check
ICheck resistance between terminalq
1and ground.
Solenoid valve Terminal No.Resistance
(Approx.)
Shift solenoid
valve Bq
1Ground 20 - 40W
Operation check
ICheck solenoid valve by listening for its operating sound while
applying battery voltage to the terminalq
1and ground.
YAT304
YAT305
YAT306
YAT307
H
H
H
TROUBLE DIAGNOSIS FOR SHIFT SOLENOID/V B
Shift Solenoid Valve B (Cont'd)
AT-67

Overrun Clutch Solenoid Valve
DESCRIPTION
The overrun clutch solenoid valve is activated by the TCM in
response to signals sent from the park/neutral position switch, over-
drive control switch, vehicle speed and throttle (accelerator) posi-
tion sensors. The overrun clutch operation will then be controlled.
ON BOARD DIAGNOSIS LOGIC
Diagnostic trouble code Malfunction is detected when ...Check items
(Possible cause)
: OVERRUN CLUTCH S/V
TCM detects an improper voltage drop
when it tries to operate the solenoid
valve.IHarness or connectors
(The solenoid circuit is open or
shorted.)
IOverrun clutch solenoid valve
: 6th 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, overdrive control switch in
ªOFFº position and vehicle speed higher than 10 km/h (6
MPH).
------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------OR------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------
1) Start engine.
2) Drive vehicle under the following conditions:
Selector lever in ªDº position, overdrive control switch in
ªOFFº position and vehicle speed higher than 10 km/h (6
MPH).
3) Perform self-diagnosis.
Refer to SELF-DIAGNOSTIC PROCEDURE (Without
CONSULT-II), AT-15.
SAT341H
YAT351
TROUBLE DIAGNOSIS FOR OVERRUN CLUTCH S/V
AT-69

DIAGNOSTIC PROCEDURE
CHECK GROUND CIRCUIT.
1. Turn ignition switch to ªOFFº position.
2. Disconnect terminal cord assembly
connector in engine compartment.
3. Check resistance between terminalq
3
and ground.
Resistance: 20 - 40W
OK
ENG
1. Remove control valve
assembly. Refer to
AT-113.
2. Check the following items:
IOverrun clutch solenoid
valve
Refer to ªCOMPONENT
INSPECTIONº below.
IHarness of terminal cord
assembly for short or open
CHECK POWER SOURCE CIRCUIT.
1. Turn ignition switch to ªOFFº position.
2. Disconnect TCM harness connector.
3. Check resistance between terminalq
3
and TCM harness connector terminal
q
20.
Resistance:
Approximately 0W
If OK, check harness for short to
ground and short to power.
4. Reinstall any part removed.
OK
ENG
Repair open circuit or short
to ground or short to power
in harness or connector.
Perform ªSELF-DIAGNOSIS CODE
CONFIRMATION PROCEDUREº, AT-69.
OK
ENG
1. Perform TCM input/output
signal inspection.
2. If NG, recheck TCM pin
terminals for damage or
loose connection with har-
ness connector.
INSPECTION END
COMPONENT INSPECTION
Overrun clutch solenoid valve
IFor removal, refer to AT-113.
Resistance check
ICheck resistance between terminalq
3and ground.
Solenoid valve Terminal No.Resistance
(Approx.)
Overrun clutch
solenoid valveq
3Ground 20 - 40W
Operation check
ICheck solenoid valve by listening for its operating sound while
applying battery voltage to the terminalq
3and ground.
YAT308
YAT309
YAT310
YAT311
H
H
H
TROUBLE DIAGNOSIS FOR OVERRUN CLUTCH S/V
Overrun Clutch Solenoid Valve (Cont'd)
AT-70

Torque Converter Clutch Solenoid Valve
DESCRIPTION
The torque converter clutch solenoid valve is activated, with the
gear in D
4, by the TCM in response to signals sent from the vehicle
speed and throttle (accelerator) position sensors. Torque converter
clutch piston operation will then be controlled.
Lock-up operation, however, is prohibited when A/T fluid tempera-
ture is too low.
ON BOARD DIAGNOSIS LOGIC
Diagnostic trouble code Malfunction is detected when ...Check items
(Possible cause)
: T/C CLUTCH SOL/V
TCM detects an improper voltage drop
when it tries to operate the solenoid
valve.IHarness or connectors
(The solenoid circuit is open or
shorted.)
IT/C clutch solenoid valve
: 7th judgement flicker
CONSULT-II REFERENCE VALUE IN DATA MONITOR MODE
Remarks: Specification data are reference values.
Monitor item Condition Specification
Torque converter clutch solenoid valve
dutyLock-up ªOFFº
"
Lock-up ªONºApproximately
4%
"
Approximately
94%
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 in D
1,D2,D3,D4,D4lock-up
position.
------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------OR------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------
1) Start engine.
2) Drive vehicle in D
1,D2,D3,D4,D4lock-up
position.
3) Perform self-diagnosis.
Refer to SELF-DIAGNOSTIC PROCEDURE (Without
CONSULT-II), AT-15.
SAT342HA
SAT818H
TROUBLE DIAGNOSIS FOR T/C CLUTCH SOL/V
AT-72

DIAGNOSTIC PROCEDURE
CHECK GROUND CIRCUIT.
1. Turn ignition switch to ªOFFº position.
2. Disconnect terminal cord assembly
connector in engine compartment.
3. Check resistance between terminalq
6
and ground.
Resistance: 10 - 20W
OK
ENG
1. Remove oil pan. Refer
to AT-123.
2. Check the following
items:
ITorque converter clutch
solenoid valve
Refer to ªCOMPONENT
INSPECTIONº on next
page.
IHarness of terminal cord
assembly for short or
open
CHECK POWER SOURCE CIRCUIT.
1. Turn ignition switch to ªOFFº position.
2. Disconnect TCM harness connector.
3. Check resistance between terminalq
6
and TCM harness connector terminal
q
3.
Resistance:
Approximately 0W
If OK, check harness for short to
ground and short to power.
4. Reinstall any part removed.
OK
ENG
Repair open circuit or short
to ground or short to
power in harness or con-
nector.
Perform ªSELF-DIAGNOSIS CODE CON-
FIRMATION PROCEDUREº, AT-72.
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
YAT312
YAT313
H
H
H
TROUBLE DIAGNOSIS FOR T/C CLUTCH SOL/V
Torque Converter Clutch Solenoid Valve
(Cont'd)
AT-73

A/T Fluid Temperature Sensor and TCM Power
Source
DESCRIPTION
The A/T fluid temperature sensor detects the A/T fluid temperature
and sends a signal to the TCM.
ON BOARD DIAGNOSIS LOGIC
Diagnostic trouble code Malfunction is detected when ...Check items
(Possible cause)
:
BATT/FLUID TEMP SEN
TCM receives an excessively low or
high voltage from the sensor.IHarness or connectors
(The sensor circuit is open or
shorted.)
IA/T fluid temperature sensor
: 8th judgement flicker
CONSULT-II REFERENCE VALUE IN DATA MONITOR MODE
Remarks: Specification data are reference values.
Monitor item Condition Specification
A/T fluid temperature sensorCold [20ÉC (68ÉF)]
"
Hot [80ÉC (176ÉF)]Approximately
1.5V
"
Approximately
0.5V
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
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.
------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------OR------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------
1) 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 SELF-DIAGNOSTIC PROCEDURE (Without
CONSULT-II), AT-15.
SAT342HA
SAT821H
TROUBLE DIAGNOSIS FOR BATT/FLUID TEMP SEN
AT-76

DIAGNOSTIC PROCEDURE
CHECK TCM POWER SOURCE.
1. Turn ignition switch to ªONº position.
(Do not start engine.)
2. Check voltage between TCM terminals
q
42,q47and ground.
Battery voltage should exist.
OK
ENG
Check the following items:
IHarness for short or
open between ignition
switch and TCM (Main
harness)
IIgnition switch and fuse
Refer to EL section
(ªPOWER SUPPLY
ROUTINGº).
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 terminalsq
6
andq7when A/T is cold.
Resistance:
Cold [20ÉC (68ÉF)]
Approximately 2.5 kW
4. Reinstall any part removed.
OK
ENG
1. Remove oil pan.
2. Check the following
items:
IA/T fluid temperature
sensor
Refer to ªCOMPONENT
INSPECTIONº on next
page.
IHarness of terminal cord
assembly for short or
open
qA
(Go to next page.)
YAT316
YAT317
H
H
TROUBLE DIAGNOSIS FOR BATT/FLUID TEMP SEN
A/T Fluid Temperature Sensor and TCM Power
Source (Cont'd)
AT-77