Nissan Almera Tino V10. Manual — part 167
AT-392
[ALL]
LINE PRESSURE SOLENOID VALVE
LINE PRESSURE SOLENOID VALVE
PFP:31940
Description
ECS009BQ
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.
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”.
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
SCIA0735E
Monitor item
Condition
Specification
Line pressure solenoid valve duty
Small throttle opening
(Low line pressure)
↓
Large throttle opening
(High line pressure)
Approximately 24%
↓
Approximately 95%
Termi-
nal No.
Wire color
Item
Condition
Judgement stan-
dard
(Approx.)
1
R/W
Line pressure
solenoid valve
When releasing accelerator pedal
after warming up engine.
1.5 - 3.0V
When depressing accelerator pedal
fully after warming up engine.
0V
2
P/B
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 items (Possible cause)
: LINE PRESSURE S/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.)
●
Line pressure solenoid valve
: 10th judgement flicker
LINE PRESSURE SOLENOID VALVE
AT-393
[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.
With brake pedal depressed, shift the lever from “P”
→
“N”
→
“D”
→
“N”
→
“P” positions.
4.
If DTC is detected, go to
AT-395, "Diagnostic Procedure"
.
Without CONSULT-II
1.
Start engine.
2.
With brake pedal depressed, shift the lever from “P”
→
“N”
→
“D”
→
“N”
→
“P” positions.
3.
Perform self-diagnosis.
Refer to
AT-252, "Diagnostic Procedure Without CONSULT-II"
.
4.
If DTC is detected, go to
AT-395, "Diagnostic Procedure"
.
SAT014K
MCIA0117E
AT-394
[ALL]
LINE PRESSURE SOLENOID VALVE
Wiring Diagram — AT — LPSV
ECS009BR
YAT378A
LINE PRESSURE SOLENOID VALVE
AT-395
[ALL]
D
E
F
G
H
I
J
K
L
M
A
B
AT
Diagnostic Procedure
ECS009BS
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 4 and ground.
OK or NG
OK
>> GO TO 2
NG
>> 1. Remove control valve assembly. Refer to
"Control Valve Assembly and Accumulators"
.
2. Check the following items:
–
Line pressure solenoid valve
Refer to
AT-397, "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 resistance between terminal 4 and TCM harness connector terminal 2.
OK or NG
OK
>> GO TO 3
NG
>> Check the following items:
●
Dropping resistor
Refer to
AT-397, "Component Inspection"
.
●
Harness for short or open between TCM terminal 2
and terminal cord assembly (Main harness)
Resistance: 2.5 - 5
Ω
MCIA0085E
Resistance: 10 - 15
Ω
MCIA0086E
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