Nissan Pathfinder (2012 year). Instruction — part 580
P0734 4GR INCORRECT RATIO
TM-67
< DTC/CIRCUIT DIAGNOSIS >
C
E
F
G
H
I
J
K
L
M
A
B
TM
N
O
P
If “TESTING” does not appear on CONSULT for a long time, select “SELF-DIAG RESULTS”. In case
a 1st trip DTC other than P0734 is shown, refer to “
TM-37, "CONSULT Function (TRANSMIS-
”.
If “COMPLETED RESULT NG” is detected, go to
.
If “STOP VEHICLE” is detected, go to the following step.
6. Stop vehicle.
7. Drive vehicle in “D” position allowing it to shift from 1GR to 5GR and check shift timing and shift shock.
-
Touch “OK” to complete the inspection when normally shifted from the 1GR to 5GR.
-
Touch “NG” when an unusual shift shock, etc. occurs in spite of shifting from the 1GR to 5GR. Go to
167, "Check Before Engine Is Started"
-
TM-37, "CONSULT Function (TRANSMISSION)"
when not shifted from the 1GR to 5GR. (Neither
“OK” nor “NG” are indicated.)
Diagnosis Procedure
INFOID:0000000007357168
1.
CHECK CAN COMMUNICATION LINE
Perform self-diagnosis. Refer to
TM-37, "CONSULT Function (TRANSMISSION)"
,
.
Is a malfunction in the CAN communication indicated in the results?
YES
>> Check CAN communication line. Refer to
NO
>> GO TO 2.
2.
CHECK TCM POWER SUPPLY AND GROUND CIRCUIT
Check TCM power supply and ground circuit. Refer to
OK or NG
OK
>> GO TO 3.
NG
>> Repair or replace damaged parts.
3.
DETECT MALFUNCTION ITEM
Check A/T assembly harness connector pin terminals for damage or loose connection with harness connector.
OK or NG
OK
>> GO TO 4.
NG
>> Repair or replace damaged parts.
4.
REPLACE CONTROL VALVE WITH TCM
1. Replace control valve with TCM. Refer to
TM-176, "Removal and Installation"
.
2. Perform
TM-66, "DTC Confirmation Procedure"
OK or NG
OK
>>
INSPECTION END
NG
>> Confirm malfunction phenomena by “ROAD TEST” to repair malfunctioning part. Refer to
"Check Before Engine Is Started"
.
August 2012
2012 Pathfinder
TM-68
< DTC/CIRCUIT DIAGNOSIS >
P0735 5GR INCORRECT RATIO
P0735 5GR INCORRECT RATIO
Description
INFOID:0000000007357169
This malfunction is detected when the A/T does not shift into 5GR position as instructed by TCM. This is not
only caused by electrical malfunction (circuits open or shorted) but also by mechanical malfunction such as
control valve sticking, improper solenoid valve operation.
On Board Diagnosis Logic
INFOID:0000000007357170
• This is an OBD-II self-diagnostic item.
• Diagnostic trouble code “P0735” with CONSULT or 22nd judgment flicker without CONSULT is detected
when TCM detects any inconsistency in the actual gear ratio.
Possible Cause
INFOID:0000000007357171
• Harness or connectors
(Solenoid circuits are open or shorted.)
• Input clutch solenoid valve
• Front brake solenoid valve
• Direct clutch solenoid valve
• High and low reverse clutch solenoid valve
• Each clutch
• Hydraulic control circuit
DTC Confirmation Procedure
INFOID:0000000007357172
CAUTION:
Always drive vehicle at a safe speed.
NOTE:
If “DTC Confirmation Procedure” has been previously performed, always turn ignition switch OFF and
wait at least 10 seconds before performing the next test.
After the repair, perform the following procedure to confirm the malfunction is eliminated.
WITH CONSULT
1. Start the engine and select “DATA MONITOR” mode for “TRANSMISSION” with CONSULT.
2. Make sure that “ATF TEMP 1” is within the following range.
ATF TEMP 1: 20 – 140
°
C (68 – 284
°
F)
If out of range, drive vehicle to warm ATF or stop engine to cool ATF.
3. Select “5TH GR FNCTN P0735” of “DTC & SRT CONFIRMATION” mode for “TRANSMISSION” with
CONSULT.
4. Drive vehicle and maintain the following conditions.
With instruction mode:
MANU MODE SW: ON
GEAR: “5” position
ACCELE POSI: 0.6/8 or more
VEHICLE SPEED: 10 km/h (6 MPH) or more
ENGINE SPEED: INPUT SPEED
−
50 rpm or more
INPUT SPEED: 300 rpm or more
Without instruction mode:
SLCT LVR POSI: “D” position
GEAR: “5” position
ACCELE POSI: 0.6/8 or more
VEHICLE SPEED: 10 km/h (6 MPH) or more
ENGINE SPEED: INPUT SPEED
−
50 rpm or more
INPUT SPEED: 300 rpm or more
5. Keep the current driving status for at least 5 consecutive seconds if CONSULT screen changes from
“OUT OF CONDITION” to “TESTING”.
CAUTION:
August 2012
2012 Pathfinder
P0735 5GR INCORRECT RATIO
TM-69
< DTC/CIRCUIT DIAGNOSIS >
C
E
F
G
H
I
J
K
L
M
A
B
TM
N
O
P
If “TESTING” does not appear on CONSULT for a long time, select “SELF-DIAG RESULTS”. In case
a 1st trip DTC other than P0735 is shown, refer to “
TM-37, "CONSULT Function (TRANSMIS-
”.
If “COMPLETED RESULT NG” is detected, go to
If “STOP VEHICLE” is detected, go to the following step.
6. Stop vehicle.
7. Drive vehicle in “D” position allowing it to shift from 1GR to 5GR and check shift timing and shift shock.
-
Touch “OK” to complete the inspection when normally shifted from the 1GR to 5GR.
-
Touch “NG” when an unusual shift shock, etc. occurs in spite of shifting from the 1GR to 5GR. Go to
167, "Check Before Engine Is Started"
-
TM-37, "CONSULT Function (TRANSMISSION)"
when not shifted from the 1GR to 5GR. (Neither
“OK” nor “NG” are indicated.)
Diagnosis Procedure
INFOID:0000000007357173
1.
CHECK CAN COMMUNICATION LINE
Perform self-diagnosis. Refer to
TM-37, "CONSULT Function (TRANSMISSION)"
,
.
Is a malfunction in the CAN communication indicated in the results?
YES
>> Check CAN communication line. Refer to
NO
>> GO TO 2.
2.
CHECK TCM POWER SUPPLY AND GROUND CIRCUIT
Check TCM power supply and ground circuit. Refer to
OK or NG
OK
>> GO TO 3.
NG
>> Repair or replace damaged parts.
3.
DETECT MALFUNCTION ITEM
Check A/T assembly harness connector pin terminals for damage or loose connection with harness connector.
OK or NG
OK
>> GO TO 4.
NG
>> Repair or replace damaged parts.
4.
REPLACE CONTROL VALVE WITH TCM
1. Replace control valve with TCM. Refer to
TM-176, "Removal and Installation"
.
2. Perform
TM-68, "DTC Confirmation Procedure"
OK or NG
OK
>>
INSPECTION END
NG
>> Confirm malfunction phenomena by “ROAD TEST” to repair malfunctioning part. Refer to
"Check Before Engine Is Started"
.
August 2012
2012 Pathfinder
TM-70
< DTC/CIRCUIT DIAGNOSIS >
P0740 TORQUE CONVERTER
P0740 TORQUE CONVERTER
Description
INFOID:0000000007357174
• The torque converter clutch solenoid valve is activated, with the gear in D
4
, D
5
by the TCM in response to
signals sent from the output speed sensor and accelerator pedal position sensor (throttle position sensor).
Torque converter clutch piston operation will then be controlled.
• Lock-up operation, however, is prohibited when A/T fluid temperature is too low.
• When the accelerator pedal is depressed (less than 1/8) in lock-up condition, the engine speed should not
change abruptly. If there is a big jump in engine speed, there is no lock-up.
CONSULT Reference Value in Data Monitor Mode
INFOID:0000000007357175
On Board Diagnosis Logic
INFOID:0000000007357176
• This is an OBD-II self-diagnostic item.
• Diagnostic trouble code “P0740” with CONSULT or 3rd judgment flicker without CONSULT is detected under
the following conditions.
- When TCM detects an improper voltage drop when it tries to operate the solenoid valve.
- When TCM detects as irregular by comparing target value with monitor value.
Possible Cause
INFOID:0000000007357177
• Torque converter clutch solenoid valve
• Harness or connectors
(The solenoid circuit is open or shorted.)
DTC Confirmation Procedure
INFOID:0000000007357178
CAUTION:
Always drive vehicle at a safe speed.
NOTE:
If “DTC Confirmation Procedure” has been previously performed, always turn ignition switch “OFF”
and wait at least 10 seconds before performing the next test.
After the repair, perform the following procedure to confirm the malfunction is eliminated.
WITH CONSULT
1. Turn ignition switch “ON”. (Do not start engine.)
2. Select “DATA MONITOR” mode for “TRANSMISSION” with CONSULT.
3. Start engine and maintain the following conditions for at least 5 consecutive seconds.
VHCL/S SE-A/T: 80 km/h (50 MPH) or more
ACCELE POSI: 0.5/8 - 1.0/8
SLCT LVR POSI: “D” position
Driving location: Driving the vehicle uphill (increased engine load) will help maintain the driving
conditions required for this test.
4. If DTC is detected go to
.
WITH GST
Follow the procedure “WITH CONSULT”.
Diagnosis Procedure
INFOID:0000000007357179
1.
CHECK INPUT SIGNAL
With CONSULT
1. Turn ignition switch ON.
2. Select “MAIN SIGNALS” in “DATA MONITOR” mode for “TRANSMISSION” with CONSULT.
Item name
Condition
Display value (Approx.)
TCC SOLENOID
When performing slip lock-up
0.2 - 0.4 A
When performing lock-up
0.4 - 0.6 A
August 2012
2012 Pathfinder
P0740 TORQUE CONVERTER
TM-71
< DTC/CIRCUIT DIAGNOSIS >
C
E
F
G
H
I
J
K
L
M
A
B
TM
N
O
P
3. Start engine.
4. Read out the value of “TCC SOLENOID” while driving.
OK or NG
OK
>> GO TO 4.
NG
>> GO TO 2.
2.
CHECK TCM POWER SUPPLY AND GROUND CIRCUIT
Check TCM power supply and ground circuit. Refer to
OK or NG
OK
>> GO TO 3.
NG
>> Repair or replace damaged parts.
3.
DETECT MALFUNCTIONING ITEM
Check the following.
• The A/T assembly harness connector pin terminals for damage or loose connection with harness connector.
OK or NG
OK
>> Replace the control valve with TCM. Refer to
TM-176, "Removal and Installation"
NG
>> Repair or replace damaged parts.
4.
CHECK DTC
Perform “DTC Confirmation Procedure”.
• Refer to
TM-70, "DTC Confirmation Procedure"
OK or NG
OK
>>
INSPECTION END
NG
>> GO TO 2.
August 2012
2012 Pathfinder
TM-72
< DTC/CIRCUIT DIAGNOSIS >
P0744 TORQUE CONVERTER
P0744 TORQUE CONVERTER
Description
INFOID:0000000007357180
This malfunction is detected when the A/T does not lock-up. This is not only caused by electrical malfunction
(circuits open or shorted) but also by mechanical malfunction such as control valve sticking, improper solenoid
valve operation, etc.
CONSULT Reference Value in Data Monitor Mode
INFOID:0000000007357181
On Board Diagnosis Logic
INFOID:0000000007357182
• This is an OBD-II self-diagnostic item.
• Diagnostic trouble code “P0744” with CONSULT or 3rd judgment flicker without CONSULT is detected under
the following conditions.
- When A/T cannot perform lock-up even if electrical circuit is good.
- When TCM detects as irregular by comparing difference value with slip rotation.
Possible Cause
INFOID:0000000007357183
• Harness or connectors
(The solenoid circuit is open or shorted.)
• Torque converter clutch solenoid valve
• Hydraulic control circuit
DTC Confirmation Procedure
INFOID:0000000007357184
CAUTION:
Always drive vehicle at a safe speed.
NOTE:
If “DTC Confirmation Procedure” has been previously performed, always turn ignition switch “OFF”
and wait at least 10 seconds before performing the next test.
After the repair, perform the following procedure to confirm the malfunction is eliminated.
WITH CONSULT
1. Start engine.
2. Select “DATA MONITOR" mode for "TRANSMISSION" with CONSULT.
3. Drive vehicle and maintain the following conditions for at least 30 consecutive seconds.
ACCELE POSI: More than 1.0/8
SLCT LVR POSI: “D” position
TCC SOLENOID: 0.4 - 0.6 A
VEHICLE SPEED: 80 km/h (50 MPH) or more
Driving locations: Driving the vehicle uphill (increased engine load) will help maintain the driving
conditions required for this test.
4. If DTC is detected, go to
WITH GST
Follow the procedure “WITH CONSULT”.
Diagnosis Procedure
INFOID:0000000007357185
1.
CHECK INPUT SIGNAL
With CONSULT
1. Turn ignition switch ON.
2. Select “MAIN SIGNALS” in “DATA MONITOR” mode for “TRANSMISSION” with CONSULT.
3. Start the engine.
Item name
Condition
Display value (Approx.)
TCC SOLENOID
When performing slip lock-up
0.2 - 0.4 A
When performing lock-up
0.4 - 0.6 A
August 2012
2012 Pathfinder
P0744 TORQUE CONVERTER
TM-73
< DTC/CIRCUIT DIAGNOSIS >
C
E
F
G
H
I
J
K
L
M
A
B
TM
N
O
P
4. Read out the value of “TCC SOLENOID” while driving.
OK or NG
OK
>> GO TO 4.
NG
>> GO TO 2.
2.
CHECK TCM POWER SUPPLY AND GROUND CIRCUIT
Check TCM power supply and ground circuit. Refer to
OK or NG
OK
>> GO TO 3.
NG
>> Repair or replace damaged parts.
3.
DETECT MALFUNCTIONING ITEM
Check the following.
• The A/T assembly harness connector pin terminals for damage or loose connection with harness connector.
OK or NG
OK
>> Replace the control valve with TCM. Refer to
TM-176, "Removal and Installation"
NG
>> Repair or replace damaged parts.
4.
CHECK DTC
Perform “DTC Confirmation Procedure”.
• Refer to
TM-72, "DTC Confirmation Procedure"
OK or NG
OK
>>
INSPECTION END
NG
>> GO TO 2.
August 2012
2012 Pathfinder
TM-74
< DTC/CIRCUIT DIAGNOSIS >
P0745 PRESSURE CONTROL SOLENOID A
P0745 PRESSURE CONTROL SOLENOID A
Description
INFOID:0000000007357186
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.
CONSULT Reference Value in Data Monitor Mode
INFOID:0000000007357187
On Board Diagnosis Logic
INFOID:0000000007357188
• This is an OBD-II self-diagnostic item.
• Diagnostic trouble code “P0745” with CONSULT or 4th judgment flicker without CONSULT is detected under
the following conditions.
- When TCM detects an improper voltage drop when it tries to operate the solenoid valve.
- When TCM detects as irregular by comparing target value with monitor value.
Possible Cause
INFOID:0000000007357189
• Harness or connectors
(The solenoid circuit is open or shorted.)
• Line pressure solenoid valve
DTC Confirmation Procedure
INFOID:0000000007357190
NOTE:
If “DTC Confirmation Procedure” has been previously performed, always turn ignition switch “OFF”
and wait at least 10 seconds before performing the next test.
After the repair, perform the following procedure to confirm the malfunction is eliminated.
WITH CONSULT
1. Turn ignition switch “ON” and select “DATA MONITOR” mode for “TRANSMISSION” with CONSULT.
2. Engine start and wait at least 5 second.
3. If DTC is detected, go to
WITH GST
Follow the procedure “WITH CONSULT”.
Diagnosis Procedure
INFOID:0000000007357191
1.
CHECK INPUT SIGNAL
With CONSULT
1. Turn ignition switch ON.
2. Select “MAIN SIGNALS” in “DATA MONITOR” mode for “TRANSMISSION” with CONSULT.
3. Start the engine.
4. Read out the value of “LINE PRES SOL” while driving.
OK or NG
OK
>> GO TO 4.
NG
>> GO TO 2.
2.
CHECK TCM POWER SUPPLY AND GROUND CIRCUIT
Check TCM power supply and ground circuit. Refer to
OK or NG
OK
>> GO TO 3.
NG
>> Repair or replace damaged parts.
3.
DETECT MALFUNCTIONING ITEM
Item name
Condition
Display value (Approx.)
LINE PRES SOL
During driving
0.2 - 0.6 A
August 2012
2012 Pathfinder
Нет комментариевНе стесняйтесь поделиться с нами вашим ценным мнением.
Текст