Nissan Pathfinder (2006 year). Instruction — part 20
DTC P1759 FRONT BRAKE SOLENOID VALVE FUNCTION
AT-151
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2006 Pathfinder
DTC P1759 FRONT BRAKE SOLENOID VALVE FUNCTION
PFP:31940
Description
ECS00EIW
●
Front brake solenoid valve is controlled by the TCM in response to signals sent from the PNP switch, vehi-
cle speed sensor and accelerator pedal position sensor (throttle position sensor). 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 mal-
function such as control valve sticking, improper solenoid valve operation.
CONSULT-II Reference Value
ECS00EIX
On Board Diagnosis Logic
ECS00EIY
●
This is an OBD-II self-diagnostic item.
●
Diagnostic trouble code “P1759 FR/B SOLENOID FNCT” with CONSULT-II is detected under the follow-
ing conditions.
–
When TCM detects that actual gear ratio is irregular, and relation between gear position and condition of
ATF pressure switch 1 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 1 is irregular
during releasing accelerator pedal. (Other than during shift change)
Possible Cause
ECS00EIZ
●
Harness or connectors
(The solenoid and switch circuits are open or shorted.)
●
Front brake solenoid valve
●
ATF pressure switch 1
DTC Confirmation Procedure
ECS00EJ0
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-II
1.
Start engine.
2.
Accelerate vehicle to maintain the following conditions.
ACCELE POS: 1.5/8 - 2.0/8
Selector lever: “D” position
Gear position: 3rd
Þ
4th Gear (FR/B ON/OFF)
Driving location: Driving the vehicle uphill (increased
engine load) will help maintain the driving conditions
required for this test.
3.
Perform step “2” again.
4.
Turn ignition switch “OFF”, then perform step “1” to “3” again.
5.
Check “SELF-DIAG RESULTS” mode for “A/T” with CONSULT-
II. If DTC (P1759) is detected, refer to
AT-152, "Diagnostic Procedure"
If DTC (P1757) is detected, go to
AT-150, "Diagnostic Procedure"
.
If DTC (P1841) is detected, go to
AT-166, "Diagnostic Procedure"
.
Item name
Condition
Display value (Approx.)
FR/B SOLENOID
Front brake engaged. Refer to
0.6 - 0.8 A
Front brake disengaged. Refer to
0 - 0.05 A
ATF PRES SW 1
Front brake engaged. Refer to
.
ON
Front brake disengaged. Refer to
.
OFF
BCIA0030E
AT-152
DTC P1759 FRONT BRAKE SOLENOID VALVE FUNCTION
2006 Pathfinder
WITH GST
Follow the procedure “WITH CONSULT-II”.
Diagnostic Procedure
ECS00EJ1
1.
CHECK INPUT SIGNALS
With CONSULT-II
1.
Start engine.
2.
Select “SELECTION FROM MENU” in “DATA MONITOR” mode
for “A/T” with CONSULT-II.
3.
Drive vehicle in the “D” position (3rd
Þ
4th gear), and confirm
the ON/OFF actuation of the “ATF PRES SW 1” and electrical
current value of “FR/B SOLENOID”.
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
AT-173, "MAIN POWER SUPPLY AND GROUND CIR-
.
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 connec-
tor.
OK or NG
OK
>> Replace the control valve with TCM. Refer to
AT-233, "Control Valve With TCM and A/T Fluid
.
NG
>> Repair or replace damaged parts.
4.
CHECK DTC
Perform “DTC Confirmation Procedure”.
●
Refer to
AT-151, "DTC Confirmation Procedure"
OK or NG
OK
>> INSPECTION END
NG
>> GO TO 2.
SCIA4796E
DTC P1762 DIRECT CLUTCH SOLENOID VALVE
AT-153
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2006 Pathfinder
DTC P1762 DIRECT CLUTCH SOLENOID VALVE
PFP:31940
Description
ECS00EJ2
Direct clutch solenoid valve is controlled by the TCM in response to signals sent from the PNP switch, vehicle
speed sensor and accelerator pedal position sensor (throttle position sensor). Gears will then be shifted to the
optimum position.
CONSULT-II Reference Value
ECS00EJ3
On Board Diagnosis Logic
ECS00EJ4
●
This is an OBD-II self-diagnostic item.
●
Diagnostic trouble code “P1762 D/C SOLENOID/CIRC” with CONSULT-II or 2nd judgement flicker without
CONSULT-II 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
ECS00EJ5
●
Harness or connectors
(The solenoid circuit is open or shorted.)
●
Direct clutch solenoid valve
DTC Confirmation Procedure
ECS00EJ6
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-II
1.
Turn ignition switch “ON”. (Do not start engine.)
2.
Select “DATA MONITOR” mode for “A/T” with CONSULT-II.
3.
Start engine.
4.
Drive vehicle and maintain the following conditions for at least 5
consecutive seconds.
ACCELE POS: 1.5/8 - 2.0/8
Selector lever: “D” position
Gear position: 1st
Þ
2nd Gear (D/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
AT-154, "Diagnostic Procedure"
.
WITH GST
Follow the procedure “WITH CONSULT-II”.
Item name
Condition
Display value (Approx.)
D/C SOLENOID
Direct clutch disengaged. Refer to
0.6 - 0.8 A
Direct clutch engaged. Refer to
.
0 - 0.05 A
BCIA0030E
AT-154
DTC P1762 DIRECT CLUTCH SOLENOID VALVE
2006 Pathfinder
Diagnostic Procedure
ECS00EJ7
1.
CHECK INPUT SIGNAL
With CONSULT-II
1.
Turn ignition switch ON.
2.
Select “MAIN SIGNALS” in “DATA MONITOR” mode for “A/T”
with CONSULT-II.
3.
Start the engine.
4.
Read out the value of “D/C 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
AT-173, "MAIN POWER SUPPLY AND GROUND CIR-
.
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 connec-
tor.
OK or NG
OK
>> Replace the control valve with TCM. Refer to
AT-233, "Control Valve With TCM and A/T Fluid
.
NG
>> Repair or replace damaged parts.
4.
CHECK DTC
Perform “DTC Confirmation Procedure”.
●
Refer to
AT-153, "DTC Confirmation Procedure"
OK or NG
OK
>> INSPECTION END
NG
>> GO TO 2.
SCIA4793E
DTC P1764 DIRECT CLUTCH SOLENOID VALVE FUNCTION
AT-155
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2006 Pathfinder
DTC P1764 DIRECT CLUTCH SOLENOID VALVE FUNCTION
PFP:31940
Description
ECS00EJ8
●
Direct clutch solenoid valve is controlled by the TCM in response to signals sent from the PNP switch,
vehicle speed sensor and accelerator pedal position sensor (throttle position sensor). 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 mal-
function such as control valve sticking, improper solenoid valve operation.
CONSULT-II Reference Value
ECS00EJ9
On Board Diagnosis Logic
ECS00EJA
●
This is an OBD-II self-diagnostic item.
●
Diagnostic trouble code “P1764 D/C SOLENOID FNCTN” with CONSULT-II is detected under the follow-
ing conditions.
–
When TCM detects that actual gear ratio is irregular, and relation between gear position and condition of
ATF pressure switch 5 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 5 is irregular
during releasing accelerator pedal. (Other than during shift change)
Possible Cause
ECS00EJB
●
Harness or connectors
(The solenoid and switch circuits are open or shorted.)
●
Direct clutch solenoid valve
●
ATF pressure switch 5
DTC Confirmation Procedure
ECS00EJC
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-II
1.
Start engine.
2.
Accelerate vehicle to maintain the following conditions.
ACCELE POS: 1.5/8 - 2.0/8
Selector lever: “D” position
Gear position: 1st
Þ
2nd Gear (D/C ON/OFF)
Driving location: Driving the vehicle uphill (increased
engine load) will help maintain the driving conditions
required for this test.
3.
Perform step “2” again.
4.
Turn ignition switch “OFF”, then perform step “1” to “3” again.
5.
Check “SELF-DIAG RESULTS” mode for “A/T” with CONSULT-
II. If DTC (P1764) is detected, refer to
AT-156, "Diagnostic Procedure"
If DTC (P1762) is detected, go to
AT-154, "Diagnostic Procedure"
.
If DTC (P1845) is detected, go to
AT-170, "Diagnostic Procedure"
.
WITH GST
Follow the procedure “WITH CONSULT-II”.
Item name
Condition
Display value (Approx.)
D/C SOLENOID
Direct clutch disengaged. Refer to
0.6 - 0.8 A
Direct clutch engaged. Refer to
.
0 - 0.05 A
ATF PRES SW 5
Direct clutch engaged. Refer to
.
ON
Direct clutch disengaged. Refer to
.
OFF
BCIA0030E
AT-156
DTC P1764 DIRECT CLUTCH SOLENOID VALVE FUNCTION
2006 Pathfinder
Diagnostic Procedure
ECS00EJD
1.
CHECK INPUT SIGNALS
With CONSULT-II
1.
Start engine.
2.
Select “SELECTION FROM MENU” in “DATA MONITOR” mode
for “A/T” with CONSULT-II.
3.
Drive vehicle in the “D” position (1st
Þ
2nd gear), and confirm
the display actuation of the “ATF PRES SW 5” and electrical cur-
rent value of “D/C SOLENOID”.
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
AT-173, "MAIN POWER SUPPLY AND GROUND CIR-
.
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 connec-
tor.
OK or NG
OK
>> Replace the control valve with TCM. Refer to
AT-233, "Control Valve With TCM and A/T Fluid
.
NG
>> Repair or replace damaged parts.
4.
CHECK DTC
Perform “DTC Confirmation Procedure”.
●
Refer to
AT-155, "DTC Confirmation Procedure"
OK or NG
OK
>> INSPECTION END
NG
>> GO TO 2.
SCIA4797E
DTC P1767 HIGH AND LOW REVERSE CLUTCH SOLENOID VALVE
AT-157
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2006 Pathfinder
DTC P1767 HIGH AND LOW REVERSE CLUTCH SOLENOID VALVE
PFP:31940
Description
ECS00EJE
High and low reverse clutch solenoid valve is controlled by the TCM in response to signals sent from the PNP
switch, vehicle speed sensor and accelerator pedal position sensor (throttle position sensor). Gears will then
be shifted to the optimum position.
CONSULT-II Reference Value
ECS00EJF
On Board Diagnosis Logic
ECS00EJG
●
This is an OBD-II self-diagnostic item.
●
Diagnostic trouble code “P1767 HLR/C SOL/CIRC” with CONSULT-II or 8th judgement flicker without
CONSULT-II 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
ECS00EJH
●
Harness or connectors
(The solenoid circuit is open or shorted.)
●
High and low reverse clutch solenoid valve
DTC Confirmation Procedure
ECS00EJI
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-II
1.
Turn ignition switch “ON”. (Do not start engine.)
2.
Select “DATA MONITOR” mode for “A/T” with CONSULT-II.
3.
Start engine.
4.
Drive vehicle and maintain the following conditions for at least 5
consecutive seconds.
ACCELE POS: 1.5/8 - 2.0/8
Selector lever: “D” position
Gear position: 2nd
Þ
3rd Gear (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
AT-158, "Diagnostic Procedure"
.
WITH GST
Follow the procedure “WITH CONSULT-II”.
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
BCIA0030E
AT-158
DTC P1767 HIGH AND LOW REVERSE CLUTCH SOLENOID VALVE
2006 Pathfinder
Diagnostic Procedure
ECS00EJJ
1.
CHECK INPUT SIGNAL
With CONSULT-II
1.
Turn ignition switch ON.
2.
Select “MAIN SIGNALS” in “DATA MONITOR” mode for “A/T”
with CONSULT-II.
3.
Start the engine.
4.
Read out the value of “HLR/C 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
AT-173, "MAIN POWER SUPPLY AND GROUND CIR-
.
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 connec-
tor.
OK or NG
OK
>> Replace the control valve with TCM. Refer to
AT-233, "Control Valve With TCM and A/T Fluid
.
NG
>> Repair or replace damaged parts.
4.
CHECK DTC
Perform “DTC Confirmation Procedure”.
●
Refer to
AT-157, "DTC Confirmation Procedure"
OK or NG
OK
>> INSPECTION END
NG
>> GO TO 2.
SCIA4793E
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