Nissan Tiida C11. Instruction — part 1334
LINE PRESSURE SOLENOID VALVE
TM-387
< COMPONENT DIAGNOSIS >
[TYPE 2 (4AT: RE4F03B)]
C
E
F
G
H
I
J
K
L
M
A
B
TM
N
O
P
LINE PRESSURE SOLENOID VALVE
Description
INFOID:0000000001713056
The line pressure solenoid valve regulates the oil pump discharge pressure to suit the driving condition in
response to signals sent from the TCM.
The line pressure duty cycle value is not constant 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-III Reference Value in Data Monitor Mode
INFOID:0000000001713057
Remarks: Specification data are reference values.
On Board Diagnosis Logic
INFOID:0000000001713058
Diagnostic trouble code “LINE PRESSURE S/V” with CONSULT-III or 11th judgement flicker without CON-
SULT-III is detected when TCM detects an improper voltage drop while it tries to operate the solenoid valve.
Possible Cause
INFOID:0000000001713059
• Harness or connector
(Solenoid circuit is open or shorted.)
• Line pressure solenoid valve
DTC Confirmation Procedure
INFOID:0000000001713060
CAUTION:
• Always drive vehicle at a safe speed.
• If performing this “DTC Confirmation Procedure” again, always turn ignition switch OFF and wait at
least 10 seconds before continuing.
After the repair, perform the following procedure to confirm the malfunction is eliminated.
WITH CONSULT-III
1.
Turn ignition switch ON and select “DATA MONITOR” mode for “TRANSMISSION” with CONSULT-III.
2.
Touch “START”.
3.
Depress accelerator pedal completely and wait at least 1 second.
4.
If the check result is NG, go to
WITHOUT CONSULT-III
1.
Start engine.
2.
With brake pedal depressed, shift the lever from “P”
→
“N”
→
“D”
→
“N”
→
“P” positions.
3.
Perform self-diagnosis. Refer to
TM-350, "Diagnosis Procedure without CONSULT-III"
4.
If the check result is NG, go to
Diagnosis Procedure
INFOID:0000000001713062
1.
CHECK INPUT SIGNAL
With CONSULT-III
1.
Turn ignition switch ON. (Do not start engine.)
2.
Select “MAIN SIGNALS” in “DATA MONITOR” mode for “TRANSMISSION” with CONSULT-III.
3.
Read out the value of “LINE PRES DTY” while driving. Check the value changes according to driving
speed.
Item name
Condition
Display value (Approx.)
LINE PRES DTY
Small throttle opening (Low line pressure)
⇔
Large
throttle opening (High line pressure)
0%
⇔
94%
TM-388
< COMPONENT DIAGNOSIS >
[TYPE 2 (4AT: RE4F03B)]
LINE PRESSURE SOLENOID VALVE
Without CONSULT-III
1.
Turn ignition switch ON. (Do not start engine.)
2.
Check voltage between TCM connector terminals and ground.
OK or NG
OK
>> GO TO 5.
NG
>> GO TO 2.
2.
CHECK DROPPING RESISTOR
1.
Turn ignition switch OFF.
2.
Disconnect dropping resistor harness connector in engine room.
3.
Check resistance between terminals.
OK or NG
OK
>> GO TO 3.
NG
>> Repair or replace damaged parts.
3.
CHECK VALVE RESISTANCE
1.
Turn ignition switch OFF.
2.
Disconnect terminal cord assembly connector in engine room.
Item name
Condition
Display value
(Approx.)
LINE PRES DTY
Small throttle opening (Low line pressure)
⇔
Large throttle opening (High line pres-
sure)
0%
⇔
94%
Item
Connec-
tor
Terminal
Condition
Judge-
ment stan-
dard
(Approx.)
Line pres-
sure sole-
noid valve
E31
1 - Ground
When releasing accelera-
tor pedal after warming
up engine.
1.5 - 3.0V
When depressing accel-
erator pedal fully after
warming up engine.
0V
Line pres-
sure sole-
noid valve
(with drop-
ping resis-
tor)
E31
2 - Ground
When releasing accelera-
tor pedal after warming
up engine.
4 - 14V
When depressing accel-
erator pedal fully after
warming up engine.
0V
SCIA3267E
Item
Connector
Terminal
Resistance (Approx.)
Dropping resistor
E49
1 - 2
12
Ω
SCIA4950E
LINE PRESSURE SOLENOID VALVE
TM-389
< COMPONENT DIAGNOSIS >
[TYPE 2 (4AT: RE4F03B)]
C
E
F
G
H
I
J
K
L
M
A
B
TM
N
O
P
3.
Check resistance between terminal cord assembly harness con-
nector terminal and ground.
OK or NG
OK
>> GO TO 4.
NG
>> Repair or replace damaged parts.
4.
CHECK HARNESS BETWEEN TCM AND TERMINAL CORD ASSEMBLY HARNESS CONNECTOR
1.
Turn ignition switch OFF.
2.
Disconnect terminal cord assembly harness connector and TCM connector.
3.
Check continuity between terminal cord assembly harness con-
nector terminal and TCM connector terminal.
4.
Check continuity between terminal cord assembly harness con-
nector terminal and dropping resistor harness connector termi-
nal.
5.
Check continuity between dropping resistor harness connector
terminal and TCM connector terminal.
6.
If OK, check harness for short to ground and short to power.
7.
If OK, check continuity between ground and transaxle assembly.
8.
Reinstall any part removed.
OK or NG
OK
>> GO TO 5.
NG
>> Repair open circuit or short to ground or short to power in harness or connectors.
5.
CHECK DTC
Perform
TM-387, "DTC Confirmation Procedure"
OK or NG
OK
>> INSPECTION END
Solenoid valve
Connector
Terminal
Resistance (Approx.)
Line pressure solenoid
valve
F30
4 - Ground
2.5 - 5.0
Ω
SCIA4951E
Item
Connector
Terminal
Continuity
TCM
E31
1
Yes
Terminal cord assembly
harness connector
F30
4
SCIA3272E
Item
Connector
Terminal
Continuity
Dropping resistor harness
connector
E49
2
Yes
Terminal cord assembly
harness connector
F30
4
SCIA7194E
Item
Connector
Terminal
Continuity
TCM
E31
2
Yes
Dropping resistor harness
connector
E49
1
SCIA7195E
TM-390
< COMPONENT DIAGNOSIS >
[TYPE 2 (4AT: RE4F03B)]
LINE PRESSURE SOLENOID VALVE
NG
>> GO TO 6.
6.
CHECK TCM
1.
Check TCM input/output signals. Refer to
XX-XX, "*****"
.
2.
If NG, recheck TCM pin terminals for damage or loose connection with harness connector.
OK or NG
OK
>> INSPECTION END
NG
>> Repair or replace damaged parts.
Component Inspection
INFOID:0000000001713063
LINE PRESSURE SOLENOID VALVE
• For removal, refer to
XX-XX, "*****"
.
Resistance Check
• Check resistance between terminal and ground.
Operation Check
• Check solenoid valve by listening for its operating sound while
applying battery voltage to the terminal and ground.
DROPPING RESISTOR
• Check resistance between terminals.
Solenoid valve
Terminal
Resistance (Ap-
prox.)
Line pressure so-
lenoid valve
4
Ground
2.5 - 5
Ω
SCIA4951E
SCIA3275E
Item
Connector
Terminal
Resistance (Approx.)
Dropping resistor
E49
1 - 2
12
Ω
SCIA4950E
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