Nissan Almera Tino V10. Manual — part 163
AT-376
[ALL]
TORQUE CONVERTER CLUTCH SOLENOID VALVE
TORQUE CONVERTER CLUTCH SOLENOID VALVE
PFP:31940
Description
ECS009BF
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 position sensors. Lock-up piston operation will
then be controlled.
Lock-up operation, however, is prohibited when A/T fluid tempera-
ture is too low.
When the accelerator pedal is depressed (less than 2/8) in lock-up
condition, the engine speed should not change abruptly. If there is a
big jump in engine speed, there is no lock-up.
CONSULT-II REFERENCE VALUE IN DATA MONITOR MODE
Remarks: Specification data are reference values.
TCM TERMINALS AND REFERENCE VALUE
Remarks: Specification data are reference values.
ON BOARD DIAGNOSIS LOGIC
SCIA0718E
Monitor item
Condition
Specification
Torque converter clutch solenoid valve
duty
Lock-up “OFF”
↓
Lock-up “ON”
Approximately 4%
↓
Approximately 94%
Termi-
nal No.
Wire color
Item
Condition
Judgement stan-
dard
(Approx.)
3
GY/R
Torque converter
clutch solenoid
valve
When A/T performs lock-up.
8 - 15V
When A/T does not perform lock-up.
0V
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.
●
Harness or connectors
(The solenoid circuit is open or shorted.)
●
T/C clutch solenoid valve
: 7th judgement flicker
TORQUE CONVERTER CLUTCH SOLENOID VALVE
AT-377
[ALL]
D
E
F
G
H
I
J
K
L
M
A
B
AT
SELF-DIAGNOSIS CODE CONFIRMATION PROCEDURE
After the repair, perform the following procedure to confirm the malfunction is eliminated.
With CONSULT-II
1.
Start engine.
2.
Select “SELF-DIAG RESULTS” mode for A/T with CONSULT-II.
3.
Drive vehicle in D
1
→
D
2
→
D
3
→
D
4
→
D
4
lock-up position.
4.
If DTC is detected, go to
AT-379, "Diagnostic Procedure"
.
Without CONSULT-II
1.
Start engine.
2.
Drive vehicle in D
1
→
D
2
→
D
3
→
D
4
→
D
4
lock-up position.
3.
Perform self-diagnosis.
Refer to
AT-252, "Diagnostic Procedure Without CONSULT-II"
.
4.
If DTC is detected, go to
AT-379, "Diagnostic Procedure"
.
SAT014K
SAT020K
MCIB9031E
AT-378
[ALL]
TORQUE CONVERTER CLUTCH SOLENOID VALVE
Wiring Diagram — AT — TCV
ECS009BG
YAT377A
TORQUE CONVERTER CLUTCH SOLENOID VALVE
AT-379
[ALL]
D
E
F
G
H
I
J
K
L
M
A
B
AT
Diagnostic Procedure
ECS009BH
1.
CHECK VALVE RESISTANCE
1.
Turn ignition switch to “OFF” position.
2.
Disconnect terminal cord assembly connector in engine compartment.
3.
Check resistance between terminal 5 and ground.
OK or NG
OK
>> GO TO 2
NG
>> 1. Remove oil pan. Refer to
.
2. Check the following items:
Torque converter clutch solenoid valve
Refer to
AT-380, "Component Inspection"
.
Harness of terminal cord assembly for short or open
2.
CHECK POWER SOURCE CIRCUIT
1.
Turn ignition switch to “OFF” position.
2.
Disconnect TCM harness connector.
3.
Check continuity between terminal 5 and TCM harness connector terminal 3.
If OK, check harness for short to ground and short to power.
4.
Reinstall any part removed.
OK or NG
OK
>> GO TO 3
NG
>> Repair open circuit or short to ground or short to power
in harness or connectors.
3.
CHECK DTC
Perform
AT-377, "SELF-DIAGNOSIS CODE CONFIRMATION PROCEDURE"
.
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 connector.
Resistance: 5 - 20
Ω
MCIA0081E
Continuity should exist.
MCIA0082E
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