AT-156
[RE4F04B]
DTC P0740 TORQUE CONVERTER CLUTCH SOLENOID VALVE
Revision: November 2006
2006 Altima
TCM TERMINALS AND REFERENCE VALUE MEASURED BETWEEN EACH TERMINAL AND 25 OR 48 (TCM GROUND)
Diagnostic Procedure
ECS0097Z
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 3.
NG
>> GO TO 2.
2.
CHECK VALVE OPERATION
1.
Remove oil pan.
2.
Check the following items:
–
Torque converter clutch solenoid valve
•
Check solenoid valve by listening for its operating sound while
applying battery voltage to the terminal and ground.
–
Harness of terminal cord assembly for short or open
OK or NG
OK
>> GO TO 3.
NG
>> Repair or replace damaged parts.
3.
CHECK POWER SOURCE CIRCUIT
1.
Turn ignition switch to OFF position.
2.
Disconnect TCM harness connector.
3.
Check continuity between terminal cord assembly harness connector terminal 5 and TCM harness con-
nector terminal 3. Refer to
AT-155, "Wiring Diagram — AT — TCV"
.
4.
Reinstall any part removed.
OK or NG
OK
>> GO TO 4.
NG
>> Repair open circuit or short to ground or short to power in harness or connectors.
TERMINAL
WIRE COLOR
ITEM
CONDITION
DATA (APPROX.)
3
G/B
TORQUE CONVERTER
CLUTCH SOLENOID VALVE
WITH TORQUE CONVERTER
LOCK-UP
8 - 15V
WITHOUT TORQUE CON-
VERTER LOCK-UP
0V
Resistance
: 5 - 20
Ω
WCIA0100E
WCIA0101E
Continuity should exist.