Nissan Frontier D22. Manual — part 84
DTC P0744 IMPROPER LOCK-UP OPERATION
AT-305
[RE4R01A]
D
E
F
G
H
I
J
K
L
M
A
B
AT
Resistance Check
●
Check resistance between terminals (6, 7) and ground.
Operation Check
●
Check solenoid valve by listening for its operating sound while
applying battery voltage to the terminals (3, 2, 4, 6 or 7) and
ground.
Solenoid valve
Terminal No.
Resistance (Approx.)
Line pressure solenoid valve
6
Ground
2.5 - 5
Ω
Torque converter clutch sole-
noid valve
7
10 - 20
Ω
SAT158J
AT-306
[RE4R01A]
DTC P0745 LINE PRESSURE SOLENOID VALVE
DTC P0745 LINE PRESSURE SOLENOID VALVE
PFP:31940
Description
ECS007N7
The line pressure solenoid valve regulates the oil pump discharge
pressure to suit the driving condition in response to a signal sent
from the TCM.
The line pressure duty cycle value is not consistent when the
closed throttle position switch is ON. To confirm the line pres-
sure duty cycle at low pressure, the accelerator (throttle)
should be open until the closed throttle position switch is OFF.
CONSULT-II REFERENCE VALUE IN DATA MONITOR MODE
Remarks: Specification data are reference values.
NOTE:
The line pressure duty cycle value is not consistent when the closed throttle position switch is ON. To confirm the line pressure duty
cycle at low pressure, the accelerator (throttle) should be open until the closed throttle position switch is OFF.
TCM TERMINALS AND REFERENCE VALUE
Remarks: Specification data are reference values.
ON BOARD DIAGNOSIS LOGIC
SAT341H
Monitor item
Condition
Specification (Approx.)
Line pressure solenoid valve
duty
Small throttle opening (Low line pressure)
↓
Large throttle opening (High line pressure)
24%
↓
95%
Terminal
No.
Wire color
Item
Condition
Judgement stan-
dard (Approx.)
1
GY/R
Line pressure
solenoid valve
When releasing accelerator pedal
after warming up engine.
1.5 - 2.5V
When depressing accelerator pedal
fully after warming up engine.
0V
2
BR/Y
Line pressure
solenoid valve
(with dropping
resistor)
When releasing accelerator pedal
after warming up engine.
4 - 14V
When depressing accelerator pedal
fully after warming up engine.
0V
Diagnostic trouble code
Malfunction is detected when ...
Check item
(Possible cause)
: L/PRESS SOL/CIRC
TCM detects an improper voltage drop
when it tries to operate the solenoid valve.
●
Harness or connectors
(The solenoid circuit is open or shorted)
●
Line pressure solenoid valve
: P0745
DTC P0745 LINE PRESSURE SOLENOID VALVE
AT-307
[RE4R01A]
D
E
F
G
H
I
J
K
L
M
A
B
AT
DIAGNOSTIC TROUBLE CODE (DTC) CONFIRMATION PROCEDURE
NOTE:
If “DIAGNOSTIC TROUBLE CODE CONFIRMATION PROCE-
DURE” has been previously conducted, always turn ignition
switch OFF and wait at least 5 seconds before conducting the
next test.
After the repair, perform the following procedure to confirm the mal-
function is eliminated.
With CONSULT-II
1.
Turn ignition switch ON and select “DATA MONITOR” mode for
“ENGINE” with CONSULT-II.
2.
Depress accelerator pedal completely and wait at least 1 sec-
ond.
With GST
●
Follow the procedure “With CONSULT-II”.
SAT014K
SEF949Y
AT-308
[RE4R01A]
DTC P0745 LINE PRESSURE SOLENOID VALVE
Wiring Diagram — AT — LPSV
ECS007N8
WCWA0101E
Нет комментариевНе стесняйтесь поделиться с нами вашим ценным мнением.
Текст