Nissan Maxima. Manual — part 1153
TM-76
< DTC/CIRCUIT DIAGNOSIS >
[CVT: RE0F09B]
P0776 PRESSURE CONTROL SOLENOID B
YES
>> GO TO 3.
NO
>> Replace transaxle assembly. Refer to
3.
CHECK LINE PRESSURE SOLENOID VALVE
Check line pressure solenoid valve. Refer to
TM-76, "Component Inspection (Line Pressure Solenoid Valve)"
Is the inspection result normal?
YES
>> GO TO 4.
NO
>> Replace transaxle assembly. Refer to
4.
CHECK SECONDARY PRESSURE SENSOR SYSTEM
Check secondary pressure sensor system. Refer to
Is the inspection result normal?
YES
>> GO TO 5.
NO
>> Repair or replace damaged parts.
5.
DETECT MALFUNCTIONING ITEMS
Check TCM connector pin terminals for damage or loose connection with harness connector.
Is the inspection result normal?
YES
NO
>> Repair or replace damaged parts.
Component Inspection (Line Pressure Solenoid Valve)
INFOID:0000000010113632
1.
CHECK LINE PRESSURE SOLENOID VALVE
Check resistance between CVT unit connector terminal and ground.
Is the inspection result normal?
YES
>> INSPECTION END
NO
>> Replace transaxle assembly. Refer to
.
Component Inspection (Secondary Pressure Solenoid Valve)
INFOID:0000000010113633
1.
CHECK SECONDARY PRESSURE SOLENOID VALVE
Check resistance between CVT unit connector terminal and ground.
Is the inspection result normal?
YES
>> INSPECTION END
NO
>> Replace transaxle assembly. Refer to
.
CVT unit connector
Ground
Resistance
(Approx.)
Connector
Terminal
F46
2
3.0 – 9.0
Ω
SCIA4686E
CVT unit connector
Ground
Resistance
(Approx.)
Connector
Terminal
F46
3
3.0 – 9.0
Ω
AWDIA0123ZZ
P0778 PRESSURE CONTROL SOLENOID B
TM-77
< DTC/CIRCUIT DIAGNOSIS >
[CVT: RE0F09B]
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P0778 PRESSURE CONTROL SOLENOID B
Description
INFOID:0000000010113634
The secondary pressure solenoid valve regulates the oil pump discharge pressure to suit the driving condition
in response to a signal sent from the TCM.
DTC Logic
INFOID:0000000010113635
DTC DETECTION LOGIC
DTC CONFIRMATION PROCEDURE
CAUTION:
Always drive vehicle at a safe speed.
NOTE:
Immediately after performing any “DTC CONFIRMATION PROCEDURE”, always turn ignition switch OFF.
Then wait at least 10 seconds before performing the next test.
1.
CHECK DTC DETECTION
With CONSULT
1. Start engine.
2. Drive vehicle and maintain the following conditions for at least 5 consecutive seconds.
3. Perform “Self Diagnostic Results” in “TRANSMISSION”.
With GST
Follow the procedure “With CONSULT”.
Is “P0778” detected?
YES
>> Go to
NO
>> Check intermittent incident. Refer to
GI-41, "Intermittent Incident"
.
Diagnosis Procedure
INFOID:0000000010113636
Regarding Wiring Diagram information, refer to
.
1.
CHECK SECONDARY PRESSURE SOLENOID VALVE CIRCUIT
1. Turn ignition switch OFF.
2. Disconnect TCM connector.
3. Check resistance between TCM vehicle side harness connector
terminal and ground.
Is the inspection result normal?
YES
>> GO TO 5.
NO
>> GO TO 2.
2.
CHECK HARNESS BETWEEN TCM AND SECONDARY PRESSURE SOLENOID VALVE (PART 1)
DTC
Trouble diagnosis name
DTC is detected if...
Possible cause
P0778
Pressure Control Solenoid B
Electrical
• Normal voltage is not applied to solenoid
due to cut line, short, etc.
• TCM detects as irregular by comparing
target value with monitor value.
• Harness or connectors
(Solenoid circuit is open or shorted.)
• Secondary pressure solenoid valve
TCM vehicle side harness connector
Ground
Resistance
(Approx.)
Connector
Terminal
F15
39
3.0 – 9.0
Ω
AWDIA0124ZZ
TM-78
< DTC/CIRCUIT DIAGNOSIS >
[CVT: RE0F09B]
P0778 PRESSURE CONTROL SOLENOID B
1. Disconnect CVT unit connector.
2. Check continuity between TCM vehicle side harness connector
terminal and CVT unit vehicle side harness connector terminal.
Is the inspection result normal?
YES
>> GO TO 3.
NO
>> Repair or replace damaged parts.
3.
CHECK HARNESS BETWEEN TCM AND SECONDARY PRESSURE SOLENOID VALVE (PART 2)
Check continuity between TCM vehicle side harness connector ter-
minal and ground.
Is the inspection result normal?
YES
>> GO TO 4.
NO
>> Repair or replace damaged parts.
4.
CHECK SECONDARY PRESSURE SOLENOID VALVE
Check secondary pressure solenoid valve. Refer to
TM-78, "Component Inspection (Secondary Pressure
Is the inspection result normal?
YES
>> GO TO 5.
NO
>> Replace transaxle assembly. Refer to
5.
DETECT MALFUNCTIONING ITEMS
Check TCM connector pin terminals for damage or loose connection with harness connector.
Is the inspection result normal?
YES
NO
>> Repair or replace damaged parts.
Component Inspection (Secondary Pressure Solenoid Valve)
INFOID:0000000010113637
1.
CHECK SECONDARY PRESSURE SOLENOID VALVE
Check resistance between CVT unit connector terminal and ground.
Is the inspection result normal?
YES
>> INSPECTION END
NO
>> Replace transaxle assembly. Refer to
.
TCM vehicle side harness
connector
CVT unit vehicle side harness
connector
Continuity
Connector
Terminal
Connector
Terminal
F15 (A)
39
F46 (B)
3
Existed
AWDIA0125ZZ
TCM vehicle side harness connector
Ground
Continuity
Connector
Terminal
F15
39
Not existed
AWDIA0124ZZ
CVT unit connector
Ground
Resistance
(Approx.)
Connector
Terminal
F46
3
3.0 – 9.0
Ω
AWDIA0123ZZ
P0826 UP AND DOWN SHIFT SW
TM-79
< DTC/CIRCUIT DIAGNOSIS >
[CVT: RE0F09B]
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P0826 UP AND DOWN SHIFT SW
Description
INFOID:0000000010113638
Manual mode switch is installed in CVT shift selector.
Manual mode switch transmits signals (manual mode, not manual mode, shift up and shift down) to combina-
tion meter.
Paddle shifter transmits signals (shift up and shift down) to combination meter. (With paddle shifter)
Combination meter transmits signals (manual mode, not manual mode, shift up and shift down) to TCM with
CAN communication signal.
DTC Logic
INFOID:0000000010113639
DTC DETECTION LOGIC
DTC CONFIRMATION PROCEDURE
CAUTION:
Always drive vehicle at a safe speed.
NOTE:
If “DTC CONFIRMATION PROCEDURE” has been previously performed, always turn ignition switch OFF.
Then wait at least 10 seconds before performing the next test.
1.
CHECK DTC DETECTION
With CONSULT
1. Turn ignition switch ON.
2. Select “Data Monitor” in “TRANSMISSION”.
3. Drive vehicle and maintain the following conditions for at least 2 consecutive seconds.
Is “P0826” detected?
YES
>> Go to
NO
>> Check intermittent incident. Refer to
GI-41, "Intermittent Incident"
.
Diagnosis Procedure
INFOID:0000000010113640
Regarding Wiring Diagram information, refer to
.
1.
CHECK MANUAL MODE SWITCH SIGNALS
With CONSULT
1. Turn ignition switch ON.
2. Select “Data Monitor” in “TRANSMISSION”.
3. Check the On/Off operations of each monitor item.
DTC
Trouble diagnosis name
DTC is detected if...
Possible cause
P0826
Up and Down Shift Switch
Circuit
• When an impossible pattern of switch sig-
nals is detected, a malfunction is detect-
ed.
• When shift up/down signal of paddle
shifter continuously remains ON for 60
seconds.
• Harness or connectors
- (The circuit of these switches are open or
shorted.)
- (TCM, and combination meter circuit are
open or shorted.)
- (CAN communication line is open or
shorted.)
• Manual mode select switch (Built into CVT
shift selector)
• Manual mode position select switch (Built
into CVT shift selector)
• Paddle shifter
MMODE
: On
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