Nissan Pathfinder (2007 year). Manual - part 22

DTC P1762 DIRECT CLUTCH SOLENOID VALVE

AT-147

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2007 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-148, "Diagnostic Procedure"

 .

 WITH GST

Follow the procedure “WITH CONSULT-II”.

Item name

Condition 

Display value (Approx.)

D/C SOLENOID

Direct clutch disengaged. Refer to 

AT-21

 .

0.6 - 0.8 A

Direct clutch engaged. Refer to 

AT-21

 .

0 - 0.05 A

BCIA0031E

AT-148

DTC P1762 DIRECT CLUTCH SOLENOID VALVE

2007 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-167, "MAIN POWER SUPPLY AND GROUND CIR-

CUIT"

 .

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-227, "Control Valve With TCM and A/T Fluid

Temperature Sensor 2"

 .

NG

>> Repair or replace damaged parts.

4. 

CHECK DTC

Perform “DTC Confirmation Procedure”.

●

Refer to 

AT-147, "DTC Confirmation Procedure"

 .

OK or NG

OK

>> INSPECTION END

NG

>> GO TO 2.

SCIA4793E

DTC P1764 DIRECT CLUTCH SOLENOID VALVE FUNCTION

AT-149

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2007 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 or 2nd judgement flicker with-
out CONSULT-II 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 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-150, "Diagnostic Procedure"

 .

If DTC (P1762) is detected, go to 

AT-148, "Diagnostic Procedure"

 .

If DTC (P1845) is detected, go to 

AT-164, "Diagnostic Procedure"

 .

 WITH GST

Follow the procedure “WITH CONSULT-II”.

Item name

Condition 

Display value (Approx.)

D/C SOLENOID

Direct clutch disengaged. Refer to 

AT-21

 .

0.6 - 0.8 A

Direct clutch engaged. Refer to 

AT-21

 .

0 - 0.05 A

ATF PRES SW 5

Direct clutch engaged. Refer to 

AT-21

 

.

ON

Direct clutch disengaged. Refer to 

AT-21

 

.

OFF

BCIA0031E

AT-150

DTC P1764 DIRECT CLUTCH SOLENOID VALVE FUNCTION

2007 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-167, "MAIN POWER SUPPLY AND GROUND CIR-

CUIT"

 .

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-227, "Control Valve With TCM and A/T Fluid

Temperature Sensor 2"

 .

NG

>> Repair or replace damaged parts.

4. 

CHECK DTC

Perform “DTC Confirmation Procedure”.

●

Refer to 

AT-149, "DTC Confirmation Procedure"

 .

OK or NG

OK

>> INSPECTION END

NG

>> GO TO 2.

SCIA4797E

DTC P1767 HIGH AND LOW REVERSE CLUTCH SOLENOID VALVE

AT-151

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2007 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-152, "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 

AT-21

 .

0.6 - 0.8 A

High and low reverse clutch engaged. Refer to 

AT-21

 .

0 - 0.05 A

BCIA0031E

AT-152

DTC P1767 HIGH AND LOW REVERSE CLUTCH SOLENOID VALVE

2007 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-167, "MAIN POWER SUPPLY AND GROUND CIR-

CUIT"

 .

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-227, "Control Valve With TCM and A/T Fluid

Temperature Sensor 2"

 .

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.

SCIA4793E

DTC P1769 HIGH AND LOW REVERSE CLUTCH SOLENOID VALVE FUNCTION

AT-153

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2007 Pathfinder

DTC P1769 HIGH AND LOW REVERSE CLUTCH SOLENOID VALVE FUNCTION

PFP:31940

Description

ECS00EJK

●

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.

●

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

ECS00EJL

On Board Diagnosis Logic

ECS00EJM

●

This is an OBD-II self-diagnostic item.

●

Diagnostic trouble code “P1769 HLR/C SOL FNCTN” with CONSULT-II or 8th judgement flicker without
CONSULT-II 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 6 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 6 is irregular
during releasing accelerator pedal. (Other than during shift change)

Possible Cause

ECS00EJN

●

Harness or connectors
(The solenoid and switch circuits are open or shorted.)

●

High and low reverse clutch solenoid valve 

●

ATF pressure switch 6

DTC Confirmation Procedure

ECS00EJO

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: 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.

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 (P1769) is detected, refer to 

AT-154, "Diagnostic Procedure"

 .

If DTC (P1767) is detected, go to 

AT-152, "Diagnostic Procedure"

 .

If DTC (P1846) is detected, go to 

AT-166, "Diagnostic Procedure"

 .

Item name

Condition 

Display value (Approx.)

HLR/C SOL 

High and low reverse clutch disengaged. Refer to 

AT-21

 .

0.6 - 0.8 A

High and low reverse clutch engaged. Refer to 

AT-21

 .

0 - 0.05 A

ATF PRES SW 6

High and low reverse clutch engaged. Refer to 

AT-21

 

.

ON

High and low reverse clutch disengaged. Refer to 

AT-21

 

.

OFF

BCIA0031E

AT-154

DTC P1769 HIGH AND LOW REVERSE CLUTCH SOLENOID VALVE FUNCTION

2007 Pathfinder

 WITH GST

Follow the procedure “WITH CONSULT-II”.

Diagnostic Procedure

ECS00EJP

1. 

CHECK INPUT SIGNALS

 With CONSULT-II

1.

Start the engine.

2.

Select “SELECTION FROM MENU” in “DATA MONITOR” mode
for “A/T” with CONSULT-II.

3.

Drive vehicle in the “D” position (2nd 

Þ

 3rd gear), and confirm

the ON/OFF actuation of the “ATF PRES SW 6” and electrical
current value of “HLR/C 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 

AT-167, "MAIN POWER SUPPLY AND GROUND CIR-

CUIT"

 .

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-227, "Control Valve With TCM and A/T Fluid

Temperature Sensor 2"

 .

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.

SCIA4798E