Infiniti F50. Manual - part 76

DTC P1762 DIRECT CLUTCH SOLENOID VALVE

AT-189

D

E

F

G

H

I

J

K

L

M

A

B

AT

Wiring Diagram — AT — D/C

ECS0087C

TCM terminal and data are reference value. Measured between each terminal and ground.

TCWM0021E

Terminal   

No.

Wire 

color

Item

Condition

Data (Approx.)

21

G

Direct clutch sole-
noid valve

When 

vehicle 
cruises

When the solenoid valve is operating (1st gear or 5th 
gear)

More than 2V

When the solenoid valve is not operating (2nd gear, 3rd 
gear or 4th gear)

0V

AT-190

DTC P1762 DIRECT CLUTCH SOLENOID VALVE

Diagnostic Procedure

ECS0087D

1. 

CHECK DIRECT CLUTCH SOLENOID VALVE CIRCUIT

1.

Turn ignition switch to “OFF” position.

2.

Disconnect A/T unit assembly harness connector at the trans-
mission right side.

3.

Check the resistance between terminal and ground.

OK or NG

OK >> GO 

TO 

4.

NG

>> GO TO 2.

2. 

CHECK TERMINAL CORD ASSEMBLY

1.

Remove oil pan. Refer to 

AT-289, "Control Valve Assembly"

 .

2.

Disconnect A/T unit assembly harness connector and control valve assembly harness connector.

3.

Check continuity between A/T unit assembly harness connector
and control valve assembly harness connector.

4.

If OK, check harness for short to ground and short to power.

OK or NG

OK

>> GO TO 3.

NG

>> Repair open circuit or short to ground or short to power in harness or connectors.

3. 

CHECK VALVE RESISTANCE

Check valve resistance

●

Refer to 

AT-192, "Component Inspection"

 .

OK or NG

OK >> GO 

TO 

4.

NG

>> Replace the control valve assembly. Refer to 

AT-289, "Control Valve Assembly"

 .

Solenoid valve

Connector No.

Terminal No. 

(Wire color)

Resistance (Approx.)

Direct clutch solenoid 
valve

F27

4 (G) - Ground

 3 - 9 

Ω

SCIA1841E

Item

Connector No.

Terminal No. (Wire color)

Continuity

A/T unit assembly 
harness connector

F27

4 (W/B)

Yes

Control valve assem-
bly harness connec-
tor

F301

7 (W/B)

SCIA3082E

DTC P1762 DIRECT CLUTCH SOLENOID VALVE

AT-191

D

E

F

G

H

I

J

K

L

M

A

B

AT

4. 

CHECK POWER SOURCE CIRCUIT

1.

Turn ignition switch to “OFF” position.

2.

Disconnect TCM connector.

3.

Check continuity between A/T unit assembly harness connector
and TCM connector.

4.

If OK, check harness for short to ground and short to power.

5.

Reinstall any part removed.

OK or NG

OK

>> GO TO 5.

NG

>> Repair open circuit or short to ground or short to power in harness or connectors.

5. 

CHECK DTC

Perform “DTC Confirmation Procedure”. Refer to 

AT-188, "DTC Confirmation Procedure"

 .

OK or NG

OK

>> INSPECTION END

NG

>> GO TO 6.

6. 

PERFORM TCM INSPECTION

1.

Perform TCM input/output signal inspection.

2.

If NG, recheck TCM pin terminals for damage or loose connection with harness connector.

OK or NG

OK

>> INSPECTION END

NG

>> Repair or replace damaged parts.

Item

Connector No.

Terminal No. 

(Wire color)

Continuity

TCM

F103

21 (G)

Yes

A/T unit assembly harness 
connector

F27

4 (G)

SCIA1842E

AT-192

DTC P1762 DIRECT CLUTCH SOLENOID VALVE

Component Inspection

ECS00A34

DIRECT CLUTCH SOLENOID VALVE
Resistance check

1.

Turn ignition switch “OFF”.

2.

Remove oil pan. Refer to 

AT-289, "Control Valve Assembly"

 .

3.

Disconnect control valve assembly harness connector.

4.

Check resistance between terminal and ground.

5.

If NG, replace control valve assembly. Refer to 

AT-289, "Control

Valve Assembly"

 .

Operation check

●

Check solenoid valve by listening for its operating sound while
applying battery voltage to the terminal 7 and ground.

Solenoid Valve

Connector No.

Terminal No. 

(Wire color)

Resistance (

Ω

) 

(Approx.)

Direct clutch solenoid 
valve

F301

7 (L) - Ground

3 - 9 

Ω

SCIA3083E

SCIA3084E