Nissan Pathfinder (2012 year). Manual — part 583
P1762 DIRECT CLUTCH SOLENOID
TM-91
< DTC/CIRCUIT DIAGNOSIS >
C
E
F
G
H
I
J
K
L
M
A
B
TM
N
O
P
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-90, "DTC Confirmation Procedure"
OK or NG
OK
>>
INSPECTION END
NG
>> GO TO 2.
August 2012
2012 Pathfinder
TM-92
< DTC/CIRCUIT DIAGNOSIS >
P1767 HIGH AND LOW REVERSE CLUTCH SOLENOID
P1767 HIGH AND LOW REVERSE CLUTCH SOLENOID
Description
INFOID:0000000007357241
High and low reverse clutch solenoid valve is controlled by the TCM in response to signals sent from the trans-
mission range switch, output speed sensor and accelerator pedal position sensor (throttle position sensor).
Gears will then be shifted to the optimum position.
CONSULT Reference Value in Data Monitor Mode
INFOID:0000000007357242
On Board Diagnosis Logic
INFOID:0000000007357243
• This is an OBD-II self-diagnostic item.
• Diagnostic trouble code “P1767” with CONSULT or 8th 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:0000000007357244
• Harness or connectors
(The solenoid circuit is open or shorted.)
• High and low reverse clutch solenoid valve
DTC Confirmation Procedure
INFOID:0000000007357245
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.
4. Drive vehicle and maintain the following conditions for at least 5 consecutive seconds.
ACCELE POSI: 1.5/8 - 2.0/8
SLCT LVR POSI: “D” position
GEAR: 2nd
⇒
3rd (HLR/C ON/OFF)
Driving location: Driving the vehicle uphill (increased engine load) will help maintain the driving
conditions required for this test.
5. If DTC is detected, go to
WITH GST
Follow the procedure “WITH CONSULT”.
Diagnosis Procedure
INFOID:0000000007357246
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 “HLR/C SOLENOID” while driving.
Item name
Condition
Display value (Approx.)
HLR/C SOL
High and low reverse clutch disengaged. Refer to
0.6 - 0.8 A
High and low reverse clutch engaged. Refer to
0 - 0.05 A
August 2012
2012 Pathfinder
P1767 HIGH AND LOW REVERSE CLUTCH SOLENOID
TM-93
< DTC/CIRCUIT DIAGNOSIS >
C
E
F
G
H
I
J
K
L
M
A
B
TM
N
O
P
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-92, "DTC Confirmation Procedure"
OK or NG
OK
>>
INSPECTION END
NG
>> GO TO 2.
August 2012
2012 Pathfinder
TM-94
< DTC/CIRCUIT DIAGNOSIS >
P1772 LOW COAST BRAKE SOLENOID
P1772 LOW COAST BRAKE SOLENOID
Description
INFOID:0000000007357247
Low coast brake solenoid valve is turned “ON” or “OFF” by the TCM in response to signals sent from the trans-
mission range switch, output speed sensor and accelerator pedal position sensor (throttle position sensor).
Gears will then be shifted to the optimum position.
CONSULT Reference Value in Data Monitor Mode
INFOID:0000000007357248
On Board Diagnosis Logic
INFOID:0000000007357249
• This is an OBD-II self-diagnostic item.
• Diagnostic trouble code “P1772” with CONSULT or 7th judgment flicker without CONSULT is detected when
TCM detects an improper voltage drop when it tries to operate the solenoid valve.
Possible Cause
INFOID:0000000007357250
• Harness or connectors
(The solenoid circuit is open or shorted.)
• Low coast brake solenoid valve
DTC Confirmation Procedure
INFOID:0000000007357251
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.
4. Drive vehicle and maintain the following conditions for at least 5 consecutive seconds.
With manual mode:
MANUAL MODE SW: ON
GEAR: “1st” or “2nd” (LC/B ON/OFF)
Without manual mode:
SLCT LVR POSI: “1” or “2”
GEAR: “1st” or “2nd” (LC/B ON/OFF)
5. If DTC is detected, go to
WITH GST
Follow the procedure “WITH CONSULT”.
Diagnosis Procedure
INFOID:0000000007357252
1.
CHECK INPUT SIGNAL
With CONSULT
1. Turn ignition switch ON.
2. Select “SELECTION FROM MENU” in “DATA MONITOR” mode for “TRANSMISSION” with CONSULT.
3. Start the engine.
4. Read out the value of “ON OFF SOL” while driving.
OK or NG
Item name
Condition
Display value
ON OFF SOL
Low coast brake engaged. Refer to
ON
Low coast brake disengaged. Refer to
.
OFF
August 2012
2012 Pathfinder
P1772 LOW COAST BRAKE SOLENOID
TM-95
< DTC/CIRCUIT DIAGNOSIS >
C
E
F
G
H
I
J
K
L
M
A
B
TM
N
O
P
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-94, "DTC Confirmation Procedure"
OK or NG
OK
>>
INSPECTION END
NG
>> GO TO 2.
August 2012
2012 Pathfinder
TM-96
< DTC/CIRCUIT DIAGNOSIS >
P1774 LOW COAST BRAKE SOLENOID
P1774 LOW COAST BRAKE SOLENOID
Description
INFOID:0000000007357253
• Low coast brake solenoid valve is turned “ON” or “OFF” by the TCM in response to signals sent from the
transmission range switch, output speed sensor and accelerator pedal position sensor (throttle position sen-
sor). Gears will then be shifted to the optimum position.
• This is not only caused by electrical malfunction (circuits open or shorted) but also by mechanical malfunc-
tion such as control valve sticking, improper solenoid valve operation.
CONSULT Reference Value in Data Monitor Mode
INFOID:0000000007357254
On Board Diagnosis Logic
INFOID:0000000007357255
• This is an OBD-II self-diagnostic item.
• Diagnostic trouble code “P1774” with CONSULT or 7th judgment flicker without CONSULT is detected under
the following conditions.
- When TCM detects that actual gear ratio is irregular, and relation between gear position and condition of
ATF pressure switch 2 is irregular during depressing accelerator pedal. (Other than during shift change)
- When TCM detects that relation between gear position and condition of ATF pressure switch 2 is irregular
during releasing accelerator pedal. (Other than during shift change)
Possible Cause
INFOID:0000000007357256
• Harness or connectors
(The solenoid and switch circuits are open or shorted.)
• Low coast brake solenoid valve
• ATF pressure switch 2
DTC Confirmation Procedure
INFOID:0000000007357257
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. Accelerate vehicle to maintain the following conditions.
With manual mode:
MANUAL MODE SW: ON
GEAR: “1st” or “2nd” (LC/B ON/OFF)
Without manual mode:
SLCT LVR POSI: “1” or “2” position
GEAR: “1st” or “2nd” (LC/B ON/OFF)
3. Perform step “2” again.
4. Turn ignition switch “OFF”, then perform step “1” to “3” again.
5. Check “SELF-DIAG RESULTS” mode for “TRANSMISSION” with CONSULT. If DTC (P1774) is detected,
.
If DTC (P1772) is detected, go to
Item name
Condition
Display value
ON OFF SOL
Low coast brake engaged. Refer to
ON
Low coast brake disengaged. Refer to
.
OFF
ATF PRES SW 2
Low coast brake engaged. Refer to
ON
Low coast brake disengaged. Refer to
.
OFF
August 2012
2012 Pathfinder
P1774 LOW COAST BRAKE SOLENOID
TM-97
< DTC/CIRCUIT DIAGNOSIS >
C
E
F
G
H
I
J
K
L
M
A
B
TM
N
O
P
WITH GST
Follow the procedure “WITH CONSULT”.
Diagnosis Procedure
INFOID:0000000007357258
1.
CHECK INPUT SIGNALS
With CONSULT
1. Start the engine.
2. Select “SELECTION FROM MENU” in “DATA MONITOR” mode for “TRANSMISSION” with CONSULT.
3. Drive vehicle in the “1” or “2” position (“1
1”
or “2
2”
” gear), and confirm the ON/OFF actuation of the “ATF
PRES SW 2” and “ON OFF SOL”.
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-96, "DTC Confirmation Procedure"
OK or NG
OK
>>
INSPECTION END
NG
>> GO TO 2.
August 2012
2012 Pathfinder
TM-98
< DTC/CIRCUIT DIAGNOSIS >
P1815 M-MODE SWITCH
P1815 M-MODE SWITCH
Description
INFOID:0000000007357259
Manual mode switch is installed in A/T shift selector. It sends manual mode switch, shift up and shift down
switch signals to TCM.
TCM sends the switch signals to combination meter and A/C amp. by CAN communication line. Then manual
mode switch position is indicated on the A/T position indicator.
CONSULT Reference Value in Data Monitor Mode
INFOID:0000000007357260
On Board Diagnosis Logic
INFOID:0000000007357261
• This is not an OBD-II self-diagnostic item.
• Diagnostic trouble code “P1815” with CONSULT is detected when TCM monitors Manual mode, Non manual
mode, Up or Down switch signal, and detects as irregular when impossible input pattern occurs 1 second or
more.
Possible Cause
INFOID:0000000007357262
• Harness or connectors
(These switches circuit is open or shorted.)
• Manual mode select switch (Into A/T shift selector)
• Manual mode position select switch (Into A/T shift selector)
DTC Confirmation Procedure
INFOID:0000000007357263
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.
2. Select “ECU INPUT SIGNALS” in “DATA MONITOR” mode for “TRANSMISSION” with CONSULT.
3. Start engine.
4. Move selector lever to “M” position.
5. Drive vehicle and maintain the following conditions for at least 2 consecutive seconds.
MANU MODE SW: ON
6. If DTC is detected, go to
Diagnosis Procedure
INFOID:0000000007357264
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?
Item name
Condition
Display Value
MANU MODE SW
Manual shift gate position (neutral)
ON
Other than the above
OFF
NON M-MODE SW
Manual shift gate position
OFF
Other than the above
ON
UP SW LEVER
Selector lever: + side
ON
Other than the above
OFF
DOWN SW LEVER
Selector lever: - side
ON
Other than the above
OFF
August 2012
2012 Pathfinder
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